JP2622200B2 - Seedling holding structure of rush transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling holding structure for pressing a seedling mounted on a seedling mounting base of a rush transplanter downward so that an always effective planting state appears.

[0002]

2. Description of the Related Art In recent years, rush transplanters have reached practical use.

[0003]

Since rush seedlings cannot be formed in a mat shape like rice seedlings, the divided seedlings are supplied to a seedling mount of a transplanter. By the way, the rush seedlings that have been separated are light washable seedlings with no soil attached to their roots. There is a risk that planting may fail due to insufficient dropping action alone or a fall of seedlings on the way. An object of the present invention is to realize a seedling holding structure that can prevent the above-described inconvenience from occurring.

[0004]

According to the present invention, there is provided a seedling mounting plate, comprising: A lifting device capable of forcibly moving the holding plate to the upper end of the seedling mounting table is provided so as to be movable along a guide member disposed along the rush seedling transfer direction, and an operation unit of the lifting device is provided. It is characterized by being arranged near the driver's seat.

[0005]

In the above construction, a presser plate for pressing the seedlings downward is newly provided, so that a separate pressing force acts in addition to the conventional conveying force, so that the seedlings can be reliably moved down by the total force. In addition, since the pressing force acts from the rearmost portion of the mounted seedling, the pressing action reaches all the mounted seedlings, and there is no possibility that the pressure is partially reduced. Then, when replenishing seedlings to the seedling mounting table, it is necessary to raise the presser plate again to the upper end portion of the seedling mounting table.However, the operation unit of the lifting device that performs the lifting movement of the presser plate is located near the driver's seat, That is, the provision of the operable member from the driver's seat enables the setting operation of the presser plate while being in the driver's seat, and there is no need to go down to the planting device side each time.

[0006]

Therefore, a seedling holding structure capable of reliably feeding the seedlings vertically and avoiding the risk of lack of stock and disturbance of the planting posture is provided. It was able to be realized while making it possible.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In the rush seedling transplanter shown in FIG. 4, a seedling planting device 2 is connected to a rear portion of a traveling machine body V via a link mechanism 1 so as to be able to move up and down. A seedling mounting table 4 that moves laterally, a planting mechanism 6 for cutting and planting seedlings one by one from a seedling outlet 5 at the lower end thereof, a plurality of leveling floats 7 and the like are provided. At the lower part of the seedling placing table 4, there is provided an endless rotating belt type vertical feeding device 8 with a projection for feeding the seedlings vertically by a predetermined amount toward the seedling take-out opening 5 at a stroke end of the lateral movement, Above the planting mechanism 6, there is provided a seedling holding mechanism 11 by a holding claw 10 which enters the lower end of the seedling prior to the operation of the planting claw 9 and pushes out and holds it toward the seedling outlet 5.

Next, the seedling holding structure will be described. FIG.
As shown in FIG. 3 to FIG. 3, a holding plate 13 that pushes back from the rearmost part of the seedling group to prevent the seedlings mounted on the seedling mounting table 4 from falling down.
Are supported by the supporting vertical wall 12 and are fitted to a pair of left and right guide rods (corresponding to guide members) 14, 14 arranged in parallel to the seedling transfer direction of the seedling placing table 4. The guide rods 14 are configured to be slidably movable along the rods 14 and to be swingably openable upward about a left-right axis fulcrum P provided at the lower end thereof. As shown in FIG. 3, the pair of guide rods 14 are U-shaped integral parts connected at the upper ends, and the holding plate 13 presses the seedlings by the downward biasing force of its own weight.

[0009] The lifting device A is configured as follows. That is, the sprockets 17 are attached to both ends of the support frame 16 pivotally supported around the fulcrum P, and the projections 1 can be brought into contact with the holding plate 13 over these.
9 and a handle for rotating the upper sprocket 17 (corresponding to an operation unit).
20 is attached. The projection 19 is a bar that extends across the left and right chains 18. The rotation shaft 21 of the upper sprocket 17 also serves as the rotation shaft of all the upper sprockets 17 of the parallel seedling mounting table 4, and one of the handles 20 provided at both left and right ends of the seedling mounting table 4 is manually operated. When the chain 18 is driven in the direction in which the upper side thereof faces the handle 20, the projections 19 come into contact with the lower side of the presser plate 13 to move the presser plate 13 together, so that all the presser plates 13 are moved. (The upper sprocket 17 and the rotary shaft 21 are in frictional contact with each other). The lifting device A is swingable and openable upward around the fulcrum P, and is provided with a waist-folding link mechanism 15 for maintaining the open posture (see FIG. 2). As shown in FIG. 4, the handle 20 arranged at the upper end of the seedling mounting table 4 is
It is located right after 9. A receiving stay 22 that opens upward is attached to the upper surface of the holding plate 13. When the handle 20 is turned to lift the guide rod 14 in a state where the holding plate 13 is set up, the lifting device in the open position is lifted. The receiving stay 22 is fitted into the rotation shaft 21 of A, and the guide rod 14 can be maintained in the open posture. Conversely, the guide rod 14 can be lifted to receive the rotation shaft 21 by the receiving stay 22, and the lifting device A can be swung upward together to lift. The lifting device A and the guide rod 14 are set in the open position, so that the work of placing the seedling box 23 for supply on the seedling placing table 4 is facilitated.

As shown in FIGS. 5 and 6, the seedling box 23 is provided with a shutter 24 serving as a lower-side seedling taking-out port and an upper-side seedling taking-in port 25 so as to swing freely around a lower fulcrum. The shutter 24 is configured to be able to be locked at both open and closed positions by an operation rod 26 that can be locked to a side wall of the seedling inlet 25. Further, as shown in FIG. 7, a seedling box 23 in which an operation rod 26 for opening and closing the shutter 24 is disposed may be provided in the inner space of the partition 28 in which the bottom plate 27 is bent and raised. In the above embodiment,
Although the lifting device A is configured to be manually operated, for example, the lifting device A may be driven by an electric motor and its operation switch may be arranged near the driver's seat.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing the structure of a seedling mounting table.

FIG. 2 is a partially cutaway side view showing a seedling mounting table in an open position;

FIG. 3 is a sectional view of a seedling mounting table.

FIG. 4 is an overall side view of the rush transplanter.

FIG. 5 is a side view showing the structure of a seedling box;

FIG. 6 is a sectional view of a seedling box.

FIG. 7 is a sectional view of a seedling box according to another structure.

[Explanation of symbols]

 4 Seedling stand 13 Holding plate 14 Guide member 20 Operation part 29 Driver's seat A Lifting device

Claims (1)

(57) [Claims] 1. A presser plate (13) that pushes back from the rear end of a group of rush seedlings to prevent the rush seedlings mounted on the seedling mounting stand (4) from falling down. A lifting device (A) which is provided so as to be movable along a guide member (14) arranged along the transfer direction and is capable of forcibly moving the holding plate (13) to an upper end portion of the seedling mounting table (4). And an operation part (20) of the lifting device (A) is disposed near the driver's seat (29).