JPH053710A - Rice transplanter - Google Patents

Abstract

PURPOSE:To provide a seedling transplantation machine enabling sure separation of the transplanting seedling from the lateral adjacent seedling and the following seedling, suppressing the scattering of the number of transplanted seedlings and causing decreased risk of void seedling. CONSTITUTION:The objective rice transplanter is provided with a rake-shaped seedling separation tool 7 and a seedling holding tool 8. The separation tool is freely switchable between a working position to intrude the tool from above into crop seedlings delivered to a position near a seedling delivery port 5 and separate individual seedling in right and left directions and a position retreated upward and is switched between the working position and the retreating position synchronous to the operation of a transplantation mechanism. The seedling holding tool 8 intrudes into the seedlings prior to the seedling-delivery operation of the transplantation mechanism, pushes back the seedlings following the transplanting seedling separated by the above seedling separation tool 7 to the side reverse to the seedling delivery port 5 and holding the following seedlings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanter for transplanting crop seedlings such as straw grass seedlings. More specifically, a plurality of crop seedlings are placed on a seedling stand and the crop seedlings are taken out from the seedling extraction port. The present invention relates to a seedling transplanting machine provided with a planting mechanism for sending out the crop seedlings sent out to and taking out, holding and planting them.

[0002]

2. Description of the Related Art In the above-mentioned seedling transplanter, conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. 3-83506, near the seedling take-out port, behind the seedling stand and prior to the operation of the planting claws. There was a structure in which a seedling holder was provided to enter the seedlings that had been sent up to and push them out toward the seedling take-out port.

[0003]

SUMMARY OF THE INVENTION The conventional structure described above is intended to ensure that planting can be performed by holding the strawberries seedlings divided into individual plants one by one by the planting claws. However, in the above conventional structure, since the seedling holder is to push only the seedlings to be planted by entering the seedlings from the rear side of the seedling stand, the seedlings to be planted are lateral to the seedling outlet. Even in the case of misalignment, it would push out in that misaligned state, and the planting nail would sometimes pull out the adjacent seedlings to take them out. Moreover, the separation of the seedlings to be planted from the succeeding seedlings on the upper side was not sufficient, and the succeeding seedlings were dragged by the planting claws,
There is a possibility that problems such as variations in the number of planted plants may occur, and there is still room for improvement. The present invention aims to solve the above-mentioned problems.

[0004]

[Means for Solving the Problems] The feature of the present invention is that in the seedling transplanter described at the beginning, the crop seedlings fed to the vicinity of the seedling take-out port enter from the upper side and left and right for each plant. The rake-like seedling partitioning tool that can be changed in posture between the working position for separating into the working position and the position for retreating upward, and which is switched to the working position and the retracted position in synchronization with the operation of the planting mechanism, A seedling holder is provided which enters the seedling prior to the seedling taking-out operation of the attaching mechanism and pushes back and holds the succeeding seedlings of the planting target seedling separated by the partitioning device to the side opposite to the seedling taking-out port. On the point.

[0005]

[Operation] For the crop seedling sent out to the seedling take-out port, the seedling partitioning tool switches from the upper retracted position to the working position in synchronization with the operation of the planting mechanism, and the seedlings to be planted and the lateral side It is possible to laterally separate the seedlings adjacent to the seedlings and to align the planting target seedlings with the seedling take-out port. Then, before the operation of the planting mechanism, the seedling holder enters and holds the seedlings to be planted in position until the planting mechanism operates. Since the subsequent seedlings are pushed back and held, the planting mechanism does not drag the succeeding seedlings.

[0006]

[Effects of the Invention] Therefore, since the separating action is surely performed between the seedlings to be planted and the adjacent seedlings on the lateral side and the succeeding seedlings, only the seedlings to be planted can be surely planted and the adjacent seedlings are dragged. And there is little variation in the number of planted seedlings,
It has become possible to provide a seedling transplanter that is less likely to run out of stock.

[0007]

Embodiments will be described below with reference to the drawings. Figure 2
Shows a straw plant transplanter. A transmission case 2 that also serves as a frame and is connected to a traveling machine body (not shown) via a link mechanism 1.
The seedling stand 3 which moves laterally back and forth with a constant stroke
The seedling stand 3 is placed on the seedling stand 3 and placed on the seedling stand 3 by the endless rotary belt type vertical feed device 4 provided on the seedling stand 3. The seedlings are sent out to the seedling take-out port 5 formed at the lower end. Arrange the planting mechanism 6 on the rear side of the seedling stand 3,
The planting mechanism 6 is configured to take out and hold the seedlings one by one from the seedling take-out port 5 and plant them in the field.

[0008] Then, the crop seedlings fed near the seedling take-out port 5 can be inserted into the crop seedling from the upper side and separated into left and right for each plant, and the posture can be retreated to the upper position. In synchronism with the operation of the planting mechanism 6, a rake-shaped seedling partitioning device 7 that switches between an operating position and a retracted position is provided, and the seedling is introduced into the seedling prior to the seedling removing operation of the planting mechanism 6, There is provided a seedling holder 8 for pushing back and holding the seedlings following the seedling to be planted, which are separated by the divider 7, to the side opposite to the seedling take-out port 5.

More specifically, as shown in FIG. 1, a pair of left and right swings pivotally supported by a support shaft 11 extending over the upper portion of a vertical frame 10 standing on each partition 9 of the seedling stand 3. The seedling partitioning tool 7 is pivotally supported on the arm 12, and the long hole 13 formed in the vertical direction of the vertical frame 10 is engaged with the pin 14 to support the sliding movement within a certain range in the vertical direction. The wire 16 is linked to the seedling holder 8 via the link mechanism 15 so as to move up and down between the operating position and the upper retracted position in conjunction with the operation. This seedling partitioning device 7 separates from above the roots of the seedlings that have been sent to the vicinity of the seedling take-out port 5 and acts to separate them laterally, while aligning the seedlings to be planted with the seedling take-out port 5. It also acts to do.

The seedling holder 8 is provided in the transmission case 2 in a parallel four-link structure by a pair of front and rear swing links 17 and 18 and an upper link link 19, and a base end portion of the front swing link 17 is provided. The cam follower 21 is attached to the drive arm 20 that is connected to the plant, and the cam member 23 provided on the drive shaft 22 of the planting mechanism 6 causes the holding claw 8a at the tip to enter the seedling in synchronization with the operation of the planting mechanism 6. It is configured to reciprocate back and forth over the working position and the rear retracted position. The support case 24 that supports the holding claws 8a is provided with a cam mechanism 25 that relatively swings the holding claws 8a toward the upper side when the holding claws 8a enter the seedling along with the forward movement. That is, the cam mechanism 25 operates based on the relative angular displacement between the front swing link 17 and the link link 19 to cause the holding claw 8a to move.
Is designed to move upwards. In this seedling holder 8, the holding claws 8a enter the seedlings to hold the seedlings to be planted prior to the seedling take-out operation by the planting mechanism 6, and the planting claws 6a of the planting mechanism 6 perform the seedling take-out operation. Holding claw 8
a moves upward and pushes back the succeeding seedlings to the upper side on the side opposite to the seedling take-out port 5 to maintain the state.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a cutaway side view of a seedling holder placement section.

[Figure 2] Side view of the rear part of the seedling transplanter

[Explanation of symbols]

 3 Seedling stand 5 Seedling take-out port 6 Planting mechanism 7 Seedling divider 8 Seedling holder

Claims (1)

Claims: 1. A plurality of crop seedlings are placed on a seedling stand (3), and the crop seedlings are sent out toward the seedling take-out port (5) and sent out. A seedling transplanter equipped with a planting mechanism (6) for picking up, holding and planting crop seedlings, which is inserted from above to the seedlings sent to near the seedling take-out port (5). A rake-shaped seedling partition that can change the posture between the left and right action positions for each plant and the retracted position, and switches between the action position and the retracted position in synchronization with the operation of the planting mechanism (6). A tool (7) is provided, and before the seedling take-out operation of the planting mechanism (6) enters the seedlings, a seedling subsequent to the planting target seedlings separated by the seedling partitioning tool (7) is taken out. Provided with a seedling holder (8) for pushing back to the side opposite to the mouth (5) and holding A seedling transplanting machine.