JPH0775415A - Riding type rice transplanter - Google Patents

Abstract

PURPOSE:To enable the supply of reserve seedlings from a reserve seedling- carrying platform with hardy requiring any labor. CONSTITUTION:This riding type rice transplanter is provided by installing a reserve seedling-carrying platform 9 so as to enable the change in a position extending from a housing position in travel to a taking out position near a control part 5, provide disposing a driving device (M) for changing the position of the reserve seedling-carrying platform 9 between both the positions, installing a seedling sensor 11 for sensing that the carried seedlings are emptied in a seedling-carrying platform (8a) of a seedling planter 8 and further a controller for changing the position of the reserve seedling-carrying platform 9 from the housing position into the taking out position with the driving device (M) based on the nonsensing of the carried seedlings with the seedling sensor 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type rice transplanter.

[0002]

2. Description of the Related Art In a riding type rice transplanter, as shown in, for example, Japanese Utility Model Laid-Open No. 4-82909, the position of a spare seedling stand is changed between a take-out position near the control section and a storage position on the front side of the machine. Freely installed to facilitate the taking out of the spare seedlings at the take-out position, and to secure a wide space around the control section at the storage position to facilitate the front and side entry and exit of the control section. It has been known. In addition, in this type of rice transplanter, generally, a sensor for detecting that there is no placed seedling is provided on the seedling placing table, and an alarm means such as a lamp or a buzzer is activated when the placement seedling is not detected by this sensor. Therefore, the pilot is encouraged to supply seedlings from the spare seedling stand to the seedling stand.

[0003]

However, in the case where the operator replenishes seedlings when prompted by an alarm based on the detection of no placed seedlings as described above, the spare seedling mount is manually operated in response to the alarm. Since it had to be moved to the take-out position, it was troublesome, and sometimes the alarm was overlooked or missed. In view of the above circumstances, an object of the present invention is to provide a riding-type rice transplanter that can perform seedling replenishing work from a preliminary seedling placing table with less trouble and more reliably.

[0004]

A feature of the riding type rice transplanter according to the present invention is that a spare seedling placing table is provided so as to be capable of changing its position between a storage position during traveling and an extraction position in the vicinity of a control section. A drive device for changing the position of the spare seedling mounting table between the two positions is provided, and the seedling mounting table of the seedling planting device,
A seedling sensor is provided to detect that the seedlings have run out, and a control device that changes the position of the preliminary seedling placement table from the storage position to the extraction position by the drive device based on the detection of no placement seedling by the seedling sensor. It is provided.

[0005]

In other words, if there are no more seedlings on the seedling placement table, the preliminary seedling placement table is automatically moved to the take-out position where it is easy to replenish the seedlings, so that the operator can immediately take out the preliminary seedlings. Moreover, since the relatively large volume seedling stand moves, the movement itself can also be a signal to prompt the operator to replenish seedlings, which can reduce forgetting to replenish seedlings. It is also possible to omit the means.

[0006]

As a result, the preliminary seedling supply to the seedling placing table can be performed more reliably and more reliably, and the riding type rice transplanter capable of improving the working efficiency can be provided.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a pair of drive steering front wheels 2 and a pair of drive rear wheels 3 are provided below the machine body frame 1, and a prime mover 4 and a control section 5 are provided above the machine body frame 1.
Are mounted on the front and rear sides to form a traveling vehicle body 6, and a seedling planting device 8 is connected to the rear of the traveling vehicle body 6 via a four-link mechanism 7 to form a riding type rice transplanter.

On the left and right sides of the prime mover 4, there are provided spare seedling placement stands 9 arranged in two rows and three stages. Each of the spare seedling mounting bases 9 is located in a sideways position of the prime mover 4 in a posture substantially parallel to the traveling machine body 6 and a takeout position shown in FIG. 3 between the position and the ridge position shown in FIG. 5 closer to the front of the aircraft than the storage position.
It is attached rotatably around the vertical axis P over the positions, and as shown in FIG. 1, this preliminary seedling mounting table 9 is a drive device for changing the positions of the preliminary seedling mounting table 9 among the three positions, and the preliminary seedling mounting table position. A changing motor M is provided. A spare seedling sensor 10 for detecting the presence or absence of a spare seedling is provided at each seedling placement portion of these spare seedling placement bases 9, and the seedling planting device 8 is also provided.
A seedling sensor 11 for detecting that the placed seedlings have run out is provided on the seedling placing table 8a of the above, and as shown in FIG.
Using the detection signals from the preliminary seedling sensor 10 and the seedling sensor 11, the auxiliary seedling table position changing motor M is driven and controlled, and a controller 12 for moving the preliminary seedling table 9 as follows is provided. It is provided. That is, at the time of normal traveling, the spare seedling placing table 9 is located at the storage position and a wide space around the control unit 5 is ensured, so that the control unit from the edge of the ridge through the passage with the prime mover 4 is secured. Make it possible to get on and off smoothly. When the seedling sensor 11 detects that the seedling placement table 8a of the seedling planting device 8 has run out of seedlings as the seedling planting work progresses, the spare seedling placement table 9 is rotated to the extraction position. By bringing the seedling take-out port close to the control unit 5, it is possible to take out the preliminary seedlings with less effort. Then, the spare seedling sensor 1 indicates that one spare seedling has been taken out.
If detected by 0, the spare seedling mounting base 9 is returned to the storage position. Further, when the spare seedling sensor 10 detects that the spare seedlings have run out on the spare seedling mounting base 9, the spare seedling mounting base 9 is rotated to the edge position, and the spare seedling mounting base 9 is moved from the ridges. To make it easier to supply spare seedlings. Then, if the spare seedling sensor 10 detects that the spare seedlings have been supplied to all the seedling placement portions, the spare seedling placement table 9 is returned to the storage position. In the control device 12, 12a is a controller, 12b is a relay circuit, and 12c is an encoder used for feedback control.

As described above, when the seedling planting device 8 runs out of seedlings, the spare seedling placing table 9 is moved to a position where it is easy to take out the spare seedlings, so that the work for supplying the spare seedlings can be efficiently performed.

Another Embodiment Next, another embodiment of the present invention will be listed. <1> As the seedling sensor 11 and the spare seedling sensor 10, various types of detection methods can be adopted, including a method of detecting by lever movement. <2> In the preliminary seedling placing table 9, the number of placing stages, the configuration of each seedling placing portion, and the like can be appropriately changed in a specific configuration. <3> The structure for changing the position of the preliminary seedling placing table 9 may be a slide type instead of the rotating type or a combination thereof. <4> In the above embodiment, the spare seedling placing table 9 is placed at the storage position /
Although the one that changes the position between the three positions of the take-out position and the ridgeline has been described, instead, in the case where it is relatively small and the storage position can be provided at the basement position on the ridgeline, The position may be changed between the storage position and the extraction position. <5> When moving the preliminary seedling placing base 9 from the storage position to the take-out position based on the detection of no placed seedlings in the seedling planting device 8, when providing a plurality of seedling placing parts on the preliminary seedling placing base 9 In this case, the entire spare seedling placing base 9 may be moved, or the seedling placing presence of the spare seedling is detected based on the presence / absence detection of the spare seedling in each seedling placing portion of the spare seedling placing base 9. You may make it move only an installation part sequentially independently.

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]

1] Overall side view

FIG. 2 is a plan view showing a state in which the preliminary seedling placing table is in the storage position.

FIG. 3 is a block diagram of a control device.

FIG. 4 is a plan view showing a state in which the preliminary seedling placing table is in the take-out position.

[FIG. 5] A plan view of the state in which the preliminary seedling placing table is at the edge position.

[Explanation of symbols]

 5 Control part 8 Seedling planting device 8a Seedling placement stand 9 Preliminary seedling placement stand 11 Seedling sensor 12 Control device M Drive device

Claims (1)

[Claims] 1. A spare seedling stand (9) is provided so that its position can be changed between a storage position during traveling and a take-out position near the control section (5), and the spare seedling stand (9) is provided on both of them. A drive device (M) for changing the position between the positions is provided, and a seedling sensor (11) for detecting that there is no placed seedling on the seedling placing table (8a) of the seedling planting device (8). A control device (12) for changing the position of the preliminary seedling placing table (9) from the storage position to the taking-out position by the drive device (M) based on the detection of no placed seedling by the seedling sensor (11) is provided. Riding type rice transplanter.