JPH0870650A - Rice-planter - Google Patents

Abstract

PURPOSE: To enable simple turnover of a multi-row transplanting machine into the housing attitude with its dimension minimized in the traverse direction. CONSTITUTION: The transplanting unit is divided into two parts AL and AR and they are rotated respectively around the upright-standing first and second shaft axes X1 and X2 so that the widthwise outer edge of the divided AL and AR are turned to the front side of the running machine body and simultaneously the divided AL and AR are moved to the right and left centers of the body so that they may be turned to the housing attitude where the divided seedling platforms 13L and 13R come close to each other at their top edges. Further, this machine is equipped with an interlocking mechanism for interlocking the rotations of the divided parts on both left and right sides and an electric motor for driving the rotation.

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 seedling mounting table for a plurality of articles supported so as to be reciprocally movable laterally with respect to the sliding rail, and a seedling mounting table for the seedling mounting table. A rice seedling planting device, which is equipped with a plurality of planting arms for cutting out seedlings from the placed mat-shaped seedlings, and a transmission mechanism for driving the planting arms, is connected to the rear end of the traveling machine so that it can be moved up and down. More specifically, the present invention 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 the 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 configured to be divided into left and right parts, and can be freely switched to a storage position in which the size of the divided parts is reduced by changing the position of the divided parts around an appropriate axis. However, the seedling placement table is large even in the divided state, and if the posture is changed to a storage position by a simple posture change, the split seedling placement tables will contact each other smoothly when changing the posture. It is easily conceivable that it will hinder proper storage, and an appropriate posture changing means is required.

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

[0006]

The features of the present invention (Claim 1) are, as described at the beginning, a plurality of rows of seedlings capable of reciprocating laterally with respect to a sliding rail arranged in a horizontally long position. A seedling planting device that supports a platform and is equipped with a plurality of planting arms that cut out the seedlings from the mat-shaped plantlets that are mounted on the seedling platform, and transmission mechanisms that drive the planting arms, In the rice transplanter connected to the rear end so as to be able to move up and down, the seedling planting device is configured to be split at a central position in the left-right direction, and each split product is oriented in a vertical position with respect to the frame member. The frame member is rotatably supported about the core, and the frame member is rotatably supported on a member on the traveling machine body side about the second axis core in the vertical posture, so that the divided object is rotated about the first axis core. The lateral end of the divided part toward the front side of the traveling machine body by the movement of the second shaft core. By rotating the frame member at, the divided object is moved to the center position side in the left-right direction of the traveling machine body, and it is possible to switch to the storage posture in which the upper edge of each divided seedling placing table is parallel in close proximity. In addition, an interlocking operation mechanism that interlocks the rotation of the left and right divided parts around the first axis and the rotation of the left and right frame members around the second axis, and the first
It is provided with an actuator for rotating the divided object around the axis or rotating the frame member around the second axis, and the operation and effect are as follows.

[0007]

According to the above feature (claim 1), when the seedling planting device is stored, the seedling planting device is set to the split state, and the actuator rotates the split product around the first axis with respect to the frame member. Alternatively, by rotating the frame member around the second axis with respect to the traveling machine body by the actuator, the interlocking operation mechanism rotates the respective divided parts in an interlocked state, and the divided parts have their lateral outer ends. At the same time that the parts move toward the front side of the traveling machine body, they respectively head toward the central position side in the left-right direction of the traveling machine body, and reach the storage posture in which the upper edges of the respective divided seedling placing bases are close to each other.

That is, unlike the conventional example, the both end portions of the seedling placing table are not configured to be folded, but the whole seedling planting device is divided into two and stored by turning, so that the seedling planting device is laterally moved. It is possible to reduce the size of each of the divided objects, and this storage operation is performed by the actuator. Moreover, since each divided object is rotated in conjunction during storage, the operator is not forced to work, and each divided object is rotated separately. It is possible to switch to an appropriate storage posture without moving.

Further, according to the second aspect, since the link member as the interlocking operation mechanism transmits the turning force of one of the divided parts to the other when the divided parts are rotated, it is compared with the one using the chain or the gear. With this simple and simple structure, the storage operation can be performed reliably.

[0010]

[Effects of the Invention] Therefore, even with a seedling planting device with 10 or more plantings, the operator can switch the seedling planting device to an appropriate storage posture in a short time by a light work of the operator and measure the lateral dimension. A rice transplanter capable of reducing the size of the rice plant is constructed (Claim 1), and a rice transplanter having a structure in which the divided pieces of the seedling planting device are interlockingly rotated when the storage is stored is simple and hard to break down (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 about the second axis X2 so that the divisions AL, AR are rotated about the first axis X1 in the lateral direction of the divisions AL, AR. 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.

An output shaft 32 to which the power from the transmission shaft 12 is transmitted is rotatably supported by the rolling boss 22 coaxially with the rolling shaft core Y. 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 side 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 rotation 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 42 that is fixed to the side of the member 20 and that meshes with the sector gear 41.
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 slide 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 device A is stored, the seedling planting device A is raised to a level away from the ground and first the seedling planting device 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 dividable 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, 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, but 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).

Thereafter, 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 split seedling table 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 actuator can be composed of a hydraulic motor and a hydraulic cylinder, and the interlocking operation mechanism can be composed of a link mechanism, a gear, or a chain. It is also possible to configure the mechanism.

The present invention can also be applied to a rice transplanter with 10 or more rows of 8 or more rows or 12 rows of rice.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but 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

[Explanation of symbols]

 3 Traveling aircraft 13 Seedling stand 13L, 13R Split seedling stand 17 Planting arm 20 Frame member 28 Sliding rail 40 Link member A Seedling planting device AL, AR Splitting plantlet plant X1 1st axis X2 No. 2-axis S interlocking operation mechanism T actuator

 ─────────────────────────────────────────────────── ─── 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,
By supporting the frame members (20) and (20) around the second axial cores (X2) and (X2) in the vertical posture so that the frame members (20) and (20) can rotate about the first axial core (X1). , (X1)
By rotating the divided parts (AL) and (AR) around them, the lateral outer ends of the divided parts (AL) and (AR) are moved to the traveling body (3).
Of the traveling body (3) by turning the frame members (20) and (20) around the second axes (X2) and (X2) of the traveling body (3). Moving to the center position side in the left-right direction, each divided seedling placing table (13L),
The upper edge of (13R) is configured to be switchable to a retracted posture in which the upper edges are close to each other, and the left and right first axial cores (X
1), left and right splits (AL), (A) around (X1)
R) and the interlocking operation mechanism (S) for interlocking the rotation of the left and right frame members (20), (20) around the second axes (X2), (X2), and the first A rice transplanter equipped with an actuator (T) for rotating a divided body around an axis (X1) or rotating a frame member (20) around a second axis (X2). 2. The interlocking operation mechanism (S) is configured to rotate the divided object around the first axis (X1) or rotate the frame member (20) around the second axis (X2). 2. A link member (40) for transmitting the information to the other side.
Rice transplanter described.