JPH057408A - Seedling feeding apparatus of seedling transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] When the aircraft is making a major course change (U-turn) at the edge of the ridge, it is prevented from automatically replenishing the spare seedlings on the seedling stand, and the spare seedlings are replenished. To stabilize. [Structure] When the number of seedlings on the seedling mounting table decreases due to transplantation, the group of seedlings on the preliminary seedling mounting table is automatically replenished on this seedling mounting table, and the route of the aircraft that came to the edge is U The above-mentioned seedlings will not be automatically replenished when the turning operation tool that is operated when turning is operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is used for a seedling planting machine, and when the machine is making a major course change (U-turn) at the edge of the ridge, automatic supply of spare seedlings onto the seedling mounting table is possible. This is done so that the preliminary seedling supply is stabilized.

[0002]

2. Description of the Related Art If seedlings are no longer on the seedling mounting table during the transplanting of seedlings, the seedling transplanting operation cannot be performed. When this happens
The seedling planting machine is provided with a spare seedling mounting table for mounting a spare seedling to be supplied on the seedling mounting table. The supply is artificially performed by stopping the operation of the seedling planting machine.

An attempt to automate this has been made in Japanese Patent Laid-Open No. 2-13.
Although it is widely practiced as seen in No. 5018 and others, it has not been put to practical use due to various problems.

[0004]

One of the above-mentioned problems is
If the spare seedling mounting table is transferred from the spare seedling mounting table to the seedling mounting table while the machine is making a U-turn at the edge, the centrifugal force generated by the turning of the machine and the unevenness of the headland will result. Due to vertical vibrations, the transfer of the spare seedlings is disturbed and the supply is not stable.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention eliminates the turning operation tool 14 and the seedling planting rod 6 which are operated when making a U-turn on the course of the aircraft at the ridge. A seedling mounting table 5 on which the group seedlings for transplanting are placed and a spare seedling mounting table 20 on which the spare group seedlings are mounted. Are provided so as to be automatically replenished on the seedling mounting table 5, and when the turning operation tool 14 is operated, the above-mentioned automatic replenishment of the group seedlings is not performed automatically. It was used as a seedling replenishing device in a seedling planting machine.

[0006]

Since the present invention is configured as described above, the collective seedlings on the seedling mounting table 5 are cut off by the seedling planting rod 6, and the cut off seedlings per plant are transplanted to the field. To be done. The above-mentioned group seedlings are gradually reduced by the above-mentioned lacking by the seedling planting rod 6. When the decrease reaches a certain limit, the spare group seedlings on the spare seedling mounting table 20 are replenished on the seedling mounting table 5,
Initially, the transplanting of seedlings is continued without interruption due to the end of the collective seedlings placed on the seedling placing table 5.

When a seedling planting machine for transplanting seedlings in this manner comes to the edge, it makes a U-turn in its path and performs a turn-back operation. At this time, the operator operates the turning operation tool 14 to cut off the power transmission from the engine to the seedling planting rod 6 and the like, and also pulls up the subsequent seedling planting device 3 in the riding type seedling plant. Then, the spare seedling mount 20
The transmission path for supplying the above-mentioned spare group seedlings to the seedling mounting table 5 is cut off, and if the supply time is reached, the spare group seedlings will not be automatically supplied.

[0008]

[Effect] As described above, according to the present invention, when the group seedlings on the seedling mounting table 5 are reduced by the transplanting work, the spare group seedlings on the spare seedling mounting table 20 are automatically supplied to the seedling mounting table 5. The seedlings are continuously transplanted for a long time. Then, when the aircraft makes a U-turn at the edge of the ridge, the above-mentioned spare group seedlings are not automatically replenished on the seedling mounting table 5, so that the seedlings are not disturbed due to the automatic replenishment, and the stability is improved.

[0009]

Embodiments of the present invention will be described below. Figure 1
As described above, the seedling planting device 3 is attached to the traveling vehicle body 1 by the pair of upper and lower links 2 to form a riding-type seedling planting machine. The seedling planting device 3 comprises a gear box 4 in the center, a seedling mounting table 5 provided on the center of the gearbox 4 which moves forward and to the left, and an elliptical orbit whose tip at the lower end of the seedling mounting table 5 faces from top to bottom. It is composed of a swiveling seedling rod 6 and a float 7 provided under the gear box 4 and sliding on a mud surface.

A cylinder 8 is provided between the traveling vehicle body 1 and the link 2, and when the piston rod is retracted, the link 2 is rotated around the traveling vehicle body 1 side, and the seedling planting device 3 is vertically moved in the same posture. It is designed to move. Further, as is well known, oil is supplied to and discharged from the cylinder 8 by vertically moving the tip of the float 7 and operating a lever by an operator.

The traveling vehicle body 1 is equipped with an engine under the seat 9 in the center, and its power is a pair of front and rear wheels 10 ,.
11 and a planted clutch 12 to transmit to a transmission gear group in the gear box 4 by a transmission shaft 13. A turning operation tool 14 composed of a lever is provided on the left side of the seat 9, and when the turning operation tool 14 is operated in a clockwise direction, the wire 15 is pulled and the planted clutch 12 cuts off power transmission, and when operated in the opposite direction from that position. , The power transmission that was cut off is restarted. As is well known, the turning operation tool 14 is connected to an oil valve for the cylinder 8 so that the upper and lower sides of the seedling planting device 3 are intermittently connected to the planting clutch 12 at the same time or with a certain time lag. It can be configured to be carried out.

As shown in FIGS. 1 and 2, the lateral movement rod 16 is supported by the gear box 4 so as to project and move left and right, and reciprocates left and right by the rotation of the transmission shaft 13 introduced into the gear box 4. It is designed to do. In addition, specifically, a structure in which a rotary motion is converted into a reciprocating motion by a lead cam composed of an endless groove obliquely provided in the cylindrical portion is used, but this is a well-known structure, and therefore, it is illustrated in order to avoid complication. Is omitted.

A pair of left and right support plates 17 are fixed to both ends of the lateral movement rod 16 and the lower abdomen of the seedling placing table 5, so that the lateral movement rod 16 moves the seedling placing table 5 back and forth forcibly. It has become. The seedling mounting table 5 is partitioned by the walls 5a on both sides protruding upward and the three walls 5b on the inner side slightly lower than this, and
Individual mat seedlings (group seedlings) can be placed vertically side by side.

A lower end of the pair of left and right columns 18 is a support plate 17.
Is rotatably attached to each of the support shafts 19 projecting outward from and extends upward, and the preliminary seedling stand 20 is fixed to the upper end. Two horizontal shafts 21 and 22 are provided on the front part of the preliminary seedling mounting table 20 in two steps, and two auxiliary seedling plates 23 and 24 are provided.
The front end of is rotatably attached to each of the horizontal shafts 21 and 22. Each of the preliminary seedling placement plates 23 and 24 is provided with three partition walls 23a and 24a formed by being bent upward so that four preliminary matting seedlings can be placed side by side in the vertical direction. Then, the partition walls 23a, 24
The a is designed to engage with the corresponding wall 5b of the seedling mounting table 5 when the rear ends of the preliminary seedling mounting plates 23, 24 are lowered.

Two plates 2 with solenoids 25 and 26
7, 28 are attached to the rear side of the preliminary seedling stand 20 in two stages, upper and lower. Two hooks 29, 30 are provided so as to engage with the rear sides of the respective preliminary seedling placing plates 23, 24, and when the solenoids 25, 26 are actuated and their pins 25a, 25b are pulled up, the respective hooks are pulled. 29 and 30 are opened so that the preliminary seedling placing plates 23 and 24 are separated from each other.

A cylinder 31 and a piston rod 32 extending from the cylinder 31 are mounted between the left column 18 and the support plate 17. The cylinder 31 and the piston rod 32 constitute a hydraulic drive device that moves the preliminary seedling stand 20 to the rear side or pulls it back to its original position. It should be noted that these are constructed by dampers and the preliminary seedling mount 20
Alternatively, it may be artificially moved to a desired position.

A pair of left and right planting cases 33 extend rearward from both sides of the gear box 4 under the seedling mounting table 5, and a total of four sets of seedling rods 6 are provided on both sides of the rear part thereof to provide four rows. It is the seedling mounting device 3 for planting. These seedling planting rods 6 are configured in a rotary manner in the figure, and by the rotation of the engine introduced by the transmission shaft 13, the tip is swung at the lower end of the seedling placing table 5 in an elliptical orbit having a long vertical direction, The ends of the mat seedlings on the table 5 are folded back to the left and right to be cut off and transplanted to a mud surface.

Four switches S1, S2, S3 and S
4 are provided side by side in the central part of the seedling mounting table 5, and when the mat seedlings on each of them pass, they are turned on. That is, the respective switches S1, S2,
The mat seedlings on S3 and S4 are gradually lowered when the lower end is cut off by the respective seedling planting rods 6 as described above. And the upper end of each switch S1, S2
When passing over S3 and S4, a space for supplying the spare mat seedlings is provided above these switches, so that a signal indicating that the spare mat seedlings may be supplied is issued.

Four switches S5, S6, S7 and S
8 is provided at the lower end portion of the seedling placing table 5, and is configured to turn on when the mat seedlings on each of them pass.
That is, by cutting off the seedling planting rod 6, the length of the mat seedling in the vertical direction is reduced. If this length becomes too short beyond a certain limit, it may be lifted or collapsed when a new mat seedling is added on it. Experience has shown that the length limit is around 5 cm. Therefore, these switches S5, S6, S7 and S8 emit a signal indicating that a spare mat seedling must be replenished when the mat seedling passes over it.

Then, these switches and solenoid 2
Switch S9 operated by 5, 26 and turning operation tool 14
Are arranged as shown in FIG. Also, the switches S10, S
At 11, each solenoid 25, 26 is configured to selectively operate. That is, the switches S1,
S2, S3 and S4 are provided in series, and when all of them are turned on, the mat seedlings on the seedling mounting table 5 can be replenished. The switches S5, S6, S7 and S8 are provided in parallel, and when one of them is turned on, it is in a state in which a spare mat seedling must be replenished. Then, the lower solenoid 26 is actuated to pull up the pin 26a, open the hook 30 and lower the rear end of the preliminary seedling placing plate 24,
This tilts backward and downwards, and the mat seedlings on it are supplied on the seedling mounting table 5. In addition, after the mat seedlings on the lower spare seedling mounting plate 24 are supplied, the upper spare seedling mounting plate 23 is similarly processed.
Activates to replenish the mat seedlings on it.

The switch S9 is provided so as to be turned off when the turning operation tool 14 is operated. That is, when the aircraft comes to the edge, the operator pulls up the seedling planting device 3 from the mud surface, cuts off the rotation transmitted to the seedling planting device 3 with the planting clutch 12, and then operates the steering wheel to operate the aircraft. Change course to U-shape. At this time, since the power supply to the solenoids 25 and 26 is turned off by the switch S9, the spare mat seedlings are not automatically replenished even in the above replenishment state.

As shown in FIG. 4, a warning device 37 such as a buzzer or a lamp may be arranged to inform the operator that the preliminary seedlings are being supplied. Also, the alarm device 3 of FIG.
If a timer or other delay device is provided between the solenoid 7 and the solenoid and the solenoid 25 or 26 is activated after a warning, the safety is further improved. A supply belt 34 is provided in the front-rear direction on the upper part of the seedling mounting table 5, and the spare seedling mounting plate 23,
A cutout 35 is provided at a part of the rear end of the auxiliary seedling mounting plate 23,
When the rear end of 24 descends and the supply of mat seedlings on it starts, a part of the supply belt 34 contacts the lower surface of the mat seedlings on the spare seedling mounting plates 23, 24 through the notches 35. , Mat seedlings were replenished smoothly. The supply belt 34 is configured to be driven by a motor,
Good results were obtained when the turning operation tool 14 is operated as described above to turn off the power to this motor when turning is performed.

[Brief description of drawings]

FIG. 1 is a side view of a riding type seedling planting machine according to the present invention.

FIG. 2 is a plan view of a part thereof.

FIG. 3 is a power distribution diagram thereof.

FIG. 4 is a power distribution diagram for the alarm.

[Explanation of symbols]

 5 seedling mounting table 6 seedling planting rod 14 turning operation tool 20 spare seedling mounting table

Claims (1)

Claims: 1. A swivel operation tool 14 that is operated when making a U-turn on the course of the aircraft at the edge of the ridge, and a seedling mount on which a group of seedlings for cutting and transplanting by the seedling planting rod 6 is placed. The table 5 and the spare seedling mounting table 20 on which the spare group seedlings are mounted are provided. When the group seedlings on the seedling mounting table 5 decrease, the spare group seedlings on the spare seedling mounting table 20 are automatically placed on the seedling mounting table 5. A seedling replenishing device in a seedling planting machine, wherein the seedling replanting device is provided so as not to be automatically replenished as described above when the turning operation tool 14 is operated.