JP2601572B2 - Seedling 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 transplanter for transplanting crop seedlings such as rush seedlings, and more particularly, to placing a plurality of crop seedlings on a seedling stand and removing the seedlings. And a seedling transplanter provided with a planting mechanism for taking out, holding, and planting the crop seedlings sent out.

[0002]

2. Description of the Related Art Conventionally, in the above-described seedling transplanter, as disclosed in, for example, Japanese Patent Application Laid-Open No. 3-83506, prior to the operation of a planting claw, near a seedling take-out opening, the rear of a seedling rest. There is a structure in which a seedling holding tool is provided to enter the seedling that has been sent out, push the seedling to the seedling takeout opening side, and hold it.

[0003]

The above-mentioned conventional structure is such that rush seedlings, which are divided one by one, can be surely held and planted one by one with a planting claw. However, in the above-mentioned conventional structure, the seedling holding tool enters the seedling from the rear side of the seedling rest and pushes out only the seedling to be planted. Even in the case where the position is displaced, the pushing action is performed in a state where the position is displaced, and the planting claws sometimes drag out the adjacent seedlings and take them out. In addition, the separation from the subsequent seedling on the upper side of the seedling to be planted is not sufficient, and the planting nail drags the subsequent seedling,
There is a possibility that problems such as variations in the number of planted plants may occur, and there is still room for improvement. An object of the present invention is to solve the above-mentioned disadvantages.

[0004]

According to a feature of the present invention, in the seedling transplanter described at the beginning, the crop seedling sent out near the seedling take-out port enters the crop seedling from the upper side and the right and left of each plant is changed. And a rake-shaped seedling partitioning tool that switches between an operating position and a retracted position in synchronization with the operation of the planting mechanism. A seedling holder is provided for entering the seedling prior to the seedling removal operation of the attaching mechanism, and pushing back and holding the subsequent seedling of the seedling to be planted separated by the partitioning tool to the side opposite to the seedling removal opening. On the point.

[0005]

[Action] The seedling partitioning tool is switched from the upper evacuation position to the action position in synchronization with the operation of the planting mechanism for the crop seedling sent out to the seedling outlet, and the seedling to be planted is placed on the side. The seedlings adjacent to the seedlings can be separated in the horizontal direction, and the seedlings to be planted can be positioned at the seedling outlet. Then, prior to the operation of the planting mechanism, the seedling holding tool enters and holds the position of the seedling to be planted until the planting mechanism is actuated. The subsequent seedlings are pushed back and held, so that the planting mechanism does not drag the subsequent seedlings.

[0006]

As a result, the separating action is reliably performed between the seedling to be planted and the adjacent seedling on the lateral side and the succeeding seedling, so that only the seedling to be planted can be reliably planted, and the adjacent seedling is dragged. There is little variation in the number of planted seedlings,
It has become possible to provide a seedling transplanter that is less likely to be out of stock.

[0007]

Embodiments will be described below with reference to the drawings. FIG.
Shows a rush seedling transplanter. A transmission case 2 serving also as a frame, which is connected to a traveling body (not shown) via a link mechanism 1.
, The seedling rest 3 that moves back and forth with a constant stroke
A large number of rush seedlings, each of which has been divided into single seedlings, are placed on the seedling rest 3, and the endless rotating belt type vertical feeding device 4 provided on the seedling rest 3 provides the seedling rest 3. The seedlings are sent out toward the seedling outlet 5 formed at the lower end. A planting mechanism 6 is arranged behind the seedling rest 3,
The planting mechanism 6 is configured to take out and hold seedlings one by one from the seedling outlet 5 and plant them in a field.

Then, the posture of the plant seedling, which has been sent to the vicinity of the seedling take-out port 5, can be freely changed between a working position where it enters from above and separates left and right for each plant and a position where it is retracted upward. In synchronization with the operation of the attaching mechanism 6, a rake-shaped seedling partitioning tool 7 that switches between an operating position and a retracted position is provided. A seedling holding tool 8 is provided for pushing back the seedling following the seedling to be planted separated by the partitioning tool 7 to the side opposite to the seedling takeout opening 5 and holding it.

More specifically, as shown in FIG. 1, a pair of right and left swingers pivotally supported on a support shaft 11 extending over an upper portion of a vertical frame 10 erected on each partition portion 9 of the seedling rest 3. The seedling partitioning tool 7 is pivotally supported on the arm 12, and the pin 14 is engaged with a long hole 13 formed in the vertical frame 10 in the vertical direction to support the sliding movement within a certain vertical range. A wire 16 is linked to the seedling holder 8 via a link mechanism 15 so as to move up and down between an operation position and an upward retreat position in conjunction with the operation. The seedling partitioning tool 7 functions to separate the roots of the seedlings sent to the vicinity of the seedling outlet 5 from above and to separate them laterally, and to position the seedling to be planted in the seedling outlet 5. It also acts to do.

The seedling holder 8 is provided in the transmission case 2 in a parallel quadruple link structure by a pair of front and rear swing links 17, 18 and an upper link 19, and a base end of the front side swing link 17. A cam follower 21 is attached to a drive arm 20 connected to the plant, and a cam member 23 provided on a drive shaft 22 of the planting mechanism 6 allows 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 between the operating position and the rear retract position. The support case 24 that supports the holding claw 8a is provided with a cam mechanism 25 that relatively swings the holding claw 8a upward when the holding claw 8a enters the seedling with the forward movement. That is, the cam mechanism 25 acts on the basis of the relative angular displacement between the front side swing link 17 and the link link 19, and the holding claw 8a
Moves upward. In the seedling holding tool 8, the holding claw 8a enters the seedling prior to the seedling removing operation by the planting mechanism 6, holds the seedling to be planted, and the planting claw 6a of the planting mechanism 6 operates to remove the seedling. When holding, holding claw 8
A moves upward, and the subsequent seedling is pushed back upward on the side opposite to the seedling take-out opening 5 to maintain that state.

[0011] In the claims, reference numerals are provided to facilitate 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 cutaway side view of a seedling holder disposition portion.

FIG. 2 is a side view of the rear part of the seedling transplanter.

[Explanation of symbols]

 3 Nursery stand 5 Seedling outlet 6 Planting mechanism 7 Seedling partitioning tool 8 Seedling holding tool

Claims (1)

(57) [Claims] A plurality of crop seedlings are placed on a seedling stand (3), and the crop seedlings are sent out to a seedling take-out port (5), and the fed crop seedlings are taken out and held. A seedling transplanter provided with a planting mechanism (6) for planting the seedlings, wherein the plant seedlings sent to near the seedling outlet (5) enter from the upper side and are separated into right and left for each plant. A rake-shaped seedling partitioning tool (7) is provided which is capable of changing its posture between an operating position to be retracted and a retracting position upward, and which switches between an operating position and a retracting position in synchronization with the operation of the planting mechanism (6). At the same time, the seedling enters the seedling prior to the seedling removal operation of the planting mechanism (6), and the seedling subsequent to the seedling to be planted separated by the seedling partitioning tool (7) is connected to the seedling removal port (5). A seedling transplanter provided with a seedling holder (8) that is pushed back and held on the opposite side.