JP2003125618A - Rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems that currently much labor is required for the treatment of empty boxes after taking out during the supplement of seedlings because a carrying platform for reserve seedlings for carrying the reserve seedlings is usually installed in a suitable places on the machine body in a rice transplanter and the reserved seedlings on the carrying platform are successively supplemented, when the seedlings are emptied in the seedling-carrying tanks, further, when the reserved seedlings on the carrying platform for reserve seedlings are taken out, the transplanter is allowed to move near the levee and receive new seedlings from the carrier of a seedling transporter wherein the reserve seedling platform is kept horizontal and the path of the seedling transportation is extended to one end to the other of the platform to need much labor and reduce the work efficiency. SOLUTION: A reserve seedlings platform made of seedlings-carrying rails movable in the lateral directions, as carrying the seedlings, is allowed to project outside of the machine body on both sides, the reserved seedling platform is made laterally inclinable and, when the seedlings are supplied, the reserve seedling-carrying platform is laterally inclined synchronously relating to the seedlings-feeding motions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter equipped with a preliminary seedling placing table and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Generally, a rice transplanter is equipped with a preliminary seedling placing table for placing a preliminary seedling in a proper place on the machine body. I am trying to supply spare seedlings one after another. When there are no more seedlings on the preliminary seedling placement table, the rice transplanter is moved to near the ridges so that the seedlings can be carried from the carrier bed of the carrier stopped on the ridge side and replenished on the placement table.

[0003]

In such a conventional one, since the preliminary seedling placing table is installed in a horizontal state, it is quite necessary to move the seedling from one end side to the other end side of the placing table during seedling supply. This is labor intensive and leads to a reduction in work efficiency.

An object of the present invention is to solve the above problems, and it is an object of the present invention to facilitate movement of seedlings and reduce labor by tilting the mounting table during seedling supply.

[0005]

The present invention takes the following technical means in order to solve the above problems. That is,
The present invention as set forth in claim 1 is provided with a spare seedling placing table configured so as to project to both outer sides of the machine body, the stand comprising a seedling moving rail capable of placing seedlings and moving the seedlings in the left and right directions. It is characterized in that the seedling placing table is provided so as to be capable of tilting to the left and right, and that when the seedling is supplied, the preliminary seedling placing table is interlocked so as to tilt in the left and right directions in association with the seedling supplying operation.

When seedlings are supplied to the preliminary seedling placing table, when the seedling supplying operation is activated, the preliminary seedling placing table is tilted to the left descending inclined posture or the right descending inclined posture. Then, if the seedlings are supplied from the upper end side of the mounting table in the inclined posture, the supplied seedling box can be moved lightly along the downward inclination direction.

According to a second aspect of the present invention, in the first aspect, the preliminary seedling placing table is configured to tilt inward in the turning direction in association with the seedling replenishing operation during turning of the machine. During the turning of the machine, the seedling replenishing operation is activated during the turning, whereby the preliminary seedling placing table tilts to the tilted posture in which the inner side in the turning direction is lower. Therefore, when supplying seedlings, they can be supplied from a high position on the ridge side.

[0008]

In summary, according to the first aspect of the present invention, since the preliminary seedling placing table tilts in the left-right direction in association with the seedling feeding operation during seedling feeding, the seedling is lightly moved to a predetermined position on the placing table. Therefore, the labor of the seedling supplementer can be reduced, and the work efficiency can be improved.

According to the second aspect of the present invention, since the preliminary seedling placing table is tilted inward in relation to the seedling replenishing operation during the turning, the seedlings must be fed from a high position on the ridge side when the seedlings are fed. In addition, the same effect as the invention of claim 1 can be obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. 1 and 2 show an 8-row Ueda planter, in which a pair of left and right front wheels 2, 2 and rear wheels 3, 3 as traveling wheels are installed in front of and behind the vehicle body 1. A control device 6 having an operation box 4, a steering handle 5 and the like is installed in the front part of the vehicle body, and a seedling planting part 7 is equipped in the rear part of the vehicle body so as to be able to move up and down via a lifting link device 8.
When the hydraulic lifting cylinder-9 is expanded and contracted, the lifting link device 8
Is operated to move up and down, and the seedling planting section 7 is moved up and down in a fixed posture. A driver's seat 10 is installed on the rear side of the control device 6, and an engine 11 for transmitting power to each part of the rice transplanter is mounted on the lower side of the driver's seat.

The seedling planting section 7 is a planting rod 13 that reciprocates left and right to remove a seedling of one plant and plant it in the soil.
Two-row planting device 14a, 14b, 14c, 1 having
4d, consisting of a float 15 for leveling the seedling planting surface. A spare seedling placing table 17 composed of a seedling moving rail 16 on which seedlings can be placed and moved between the seedling planting portion 7 and the driver's seat 10 in the upper rear part of the machine is installed in the lateral direction. In addition, it has a structure in which it is largely projected to both outer sides of the airframe.

The seedling box placed on the preliminary seedling placement table 17 is lightly moved laterally via a roller 18 which is cantilevered on the seedling moving rail 16 with respect to the seedling movement rail 16. Is configured. Further, the mounting table 17 is configured to be tiltable so that the tilt can be changed in the left-right direction with a support shaft 19 installed in the front-rear direction as a fulcrum.

Reference numeral 20 is a left-right tilting cylinder for tilting the mounting table 17, and 21 is a damper. When the left / right tilting cylinder-20 is expanded / contracted, the mounting table 17 is tilted between the left descending tilted posture and the right lowering tilted posture via the damper-21. The left and right outer end portions 1 of the mounting table 17
7L and 17R can be folded and housed around the pivot 22.

When there is no seedling on the spare seedling placement table 17 and it is desired to replenish the seedling, the placement table 17 is changed to an inclined posture in the left-right direction to replenish the seedling. That is, when the seedling supply operation is performed, for example, in this embodiment, the seedling supply lever 23 is artificially manually operated to switch the switching valve to the left and right tilting cylinder 20, and the expansion and contraction operation of the cylinder 20. Thus, the mounting table 17 is interlocked so as to change its posture to the inclined posture in the left-right direction.

When the seedling supply operation is performed, that is, when the seedling supply lever 23 that can be operated in the left and right directions is operated in the right direction, the left and right inclining cylinders 20 are extended and the mounting table 17 is supported. When the seedling supply lever 23 is operated to the left by tilting to the right with the shaft 19 as a fulcrum, and the conversely, the seedling supply lever 23 is operated to the left, the left and right tilting cylinder 20 is contracted and the mounting table 17 is leftwardly tilted. Tilt to.

Incidentally, the seedling replenishing operation mentioned here is different from the operation by the seedling replenishing lever 23, in that the seedling planting section is lifted to a non-working position, and the planting clutch "disengaged" when not working. The seedling reduction sensor is ON when the seedling is reduced to a predetermined amount or less in the seedling mounting tank, and the operation such as the main clutch “disengagement” for stopping the traveling of the machine and the drive of the seedling planting part can be mentioned. In connection with these operations, the preliminary seedling placing table 17 can be interlocked so as to tilt. Also, planting
The elevating lever 24 can operate the hydraulic elevating cylinder 9 and the planting clutch to elevate the seedling planting section 7 and turn on / off the drive of the seedling planting section by operating in the front-rear direction. . Therefore, when the lift of the seedling planting section and the drive of the seedling planting section are turned off by the operation of the planting / elevation lever 24, in conjunction with this, the preliminary seedling placing table 17 is interlocked so as to tilt at a predetermined angle. It can also be configured.

In addition to this, the auxiliary seedling placing table 17 can be interlocked so as to tilt toward the inside of the turning in association with the seedling replenishing operation during the turning when the machine is turning. That is, for example, a steering angle sensor 25 for detecting the steering angle of the steering wheel 5 is provided on the steering shaft 5a, and based on the steering angle detection result of the steering angle sensor 25 which is equal to or more than a predetermined value, the preliminary seedling placing table 17 operates the steering wheel. It is configured to interlock so that it tilts in the cutting direction.

Planting work of seedlings is carried out while advancing the machine toward the ridge side, and when the work of this one step is completed, the machine is turned by approximately 180 degrees to shift to the next step. And if you want to reach the ridge side and replenish seedlings, you can usually set the aircraft at about 90
Turn it around and put it sideways so that it is parallel to the ridge. Therefore,
When the steering angle sensor 25 detects the steering angle for turning the machine body by approximately 90 degrees or more, the left and right tilt cylinders 20 are controlled based on the detection result so that the preliminary seedling placement table 17 tilts inward. That is, when the handle 5 is turned clockwise and the vehicle body is turned to the right, the cylinder 20 for left and right tilting is performed.
Is extended and when the handle 5 is turned counterclockwise to turn the body to the left, the left and right tilting cylinder 20 is controlled to be reduced.

In addition, stoppers 17S are provided on both left and right sides of the preliminary seedling placement table 17 so that the seedling box can be switched between a blocking state and a non-blocking state so as not to fall outward. Drawing markers 26L and 26R are provided on the left and right sides of the seedling planting section 7 to draw the course of the aircraft in the next stroke to the surface soil surface.
Is provided so that it can stand and fall. Left and right drawing markers
The car 26L, 26R and the piston rod 9a of the hydraulic lifting cylinder 9 are linked by the marker wires 27L, 27R. When the piston rod 9a is extended when the seedling planting part is raised, the marker wires 27L, 27R are pulled. When the drawing markers 26L and 26R are erected and the piston rod 9a is contracted when the seedling planting portion is lowered, the marker wire 27 is drawn.
L and 27R return, and the line drawing markers 26L and 26R fall. In addition, the solenoid 28 for the marker
When the marker wires 27L and 27R are regulated by L and 28R so as not to return, the drawing markers 26L and 26R are held upright even if the seedling planting section 7 is lowered.

A gyro (direction) sensor 29 capable of measuring north, south, east, and west is provided at the front of the airframe. As shown in FIG. 5, the gyro sensor 29 is provided on the input side of the control section 30, and on the output side of the control section, a left marker solenoid 28L and a right marker solenoid 28L for switching control between the left and right drawing markers. A power solenoid 38R is provided.

The gyro sensor 29 measures the azimuth in the first stroke of the planting operation, and the direction in which the wire drawing marker is falling (wire drawing action) at that time is stored. Then, when the planting work for one stroke is completed and the machine body turns 180 degrees (direction change), switching control is performed so that the wire drawing marker on the opposite side falls.

Further, the work on the headland is performed by changing the direction by 90 degrees, but in this case, since it is not necessary to draw a line by the marker, in the case of the 90-degree turn in the headland work, the marker is used. Automatically control so that it is turned off and inactive. In particular, this is based on the azimuth measurement result of the gyro sensor, and the marker automatically becomes inactive.

At the time of seedling planting work, the mat-like seedlings with soil are stored and placed in the seedling mount tank 12, the car body 1 is run, and the seedling planting section 7 is used.
Rotate and drive each part while pulling. Then, the seedling planting section 7 is supported by the lower surface of the soil 15 on the soil surface and is slid, while the seedling mounting tank 13 divides the seedlings for each strain from the seedling mounting tank 12 that moves left and right. Plant on the soil surface. In this way, 8 rows of seedlings are planted in one run.

When no seedlings remain in the seedling placing tank 12, the spare seedlings placed on the spare seedling placing table 17 are taken out from the seedling box and supplied to the seedling placing tank 12. When the spare seedlings on the spare seedling placing table 17 are exhausted, the rice transplanter is moved to the ridge side, and the spare seedling placing table 17 is tilted to supply seedlings.

[Brief description of drawings]

[Figure 1] Side view of rice transplanter

[Figure 2] Plan view of rice transplanter

FIG. 3 is a front view of the main part of the same as above.

FIG. 4 shows an operating mechanism of a wire drawing marker.

FIG. 5 is a control block diagram of a line drawing marker.

[Explanation of symbols]

1 vehicle body, 2 front wheel 3 rear wheel 4 operation box 5 steering handle 6 steering device 7 seedling planting section 8 lifting link device 9 hydraulic lifting cylinder-10 driver's seat 11 engine 12 seedling mounting tank 13 seedling rod 14 planting device 15 flow -To 16 Seedling movement rail 17 Spare seedling placement table 18 Roller 19 Spindle 20 Left and right tilt cylinder 21 Damper 22 Axis 23 Seedling replenishment lever 24 Planting /
Lifting lever 25 Steering angle sensor

Claims (2)

[Claims] 1. A preliminary seedling placing table comprising seedling moving rails capable of placing the seedlings and moving them in the left and right directions is provided so as to project to both outer sides of the machine body, and the preliminary seedling placing table is provided. A rice transplanter characterized by being configured to be tiltable to the right and left, and interlockingly configured so that the preliminary seedling placing table tilts to the left and right in relation to this seedling supply operation during seedling supply. 2. The rice transplanter according to claim 1, wherein the preliminary seedling placement table is configured to tilt inward in the turning direction in association with the seedling supply operation during turning of the machine body.