JPH04190704A - Seedling transplanter - Google Patents

Abstract

PURPOSE:To prevent root parts from floating in supplying seedlings to a seedling carrier by operating vertical moving and driven arms of partition tools in a state of released interlocking with a driving source on the side of a planting mechanism with an operating arm. CONSTITUTION:A linkage releasing mechanism 32 capable of releasing and operating an interlocking and driven state is interposingly installed in a link mechanism (R) for vertical driving arms 17 of partition tools 12 in the form of a rake for pushing out root parts of seedlings toward a seedling taking outlet 9 and a driving source 18 on the side of a planting mechanism 5. When the seedlings are supplied to a seedling carrier 4, the interlocking and driven state is released to manually operate an operating arm 31. Thereby, the partition tool can be vertically moved to arrange the root parts of the floated seedlings near a taking outlet of the seedlings.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is configured so that crop seedlings placed on a seedling stand are sent out toward a seedling take-out port, and the seedlings are taken out one by one from the seedling take-out port. This invention relates to a seedling transplanter equipped with a planting mechanism for planting seeds.

[Conventional technology]

In the above-mentioned seedling transplanting machine, conventionally, for example, JP-A-1-1
As disclosed in Publication No. 48114, a seedling holder is used to divide the divided strawberry seedlings into large quantities and hold them in an upright position. There was something designed to set it up.

[Problem to be solved by the invention]

The conventional structure described above uses the existing mechanism for planting rice seedlings, making it possible to plant rice seedlings that are relatively tall and have hard stems, with fewer mistakes. This is what I did.

However, when using the above conventional structure, when placing seedlings on a seedling stand prior to planting, one seedling must be attached to each clipping and locking part of the seedling holder. The drawback was that it was a cumbersome task. In addition, the seedling holder is required for each row of seedlings, and a large-scale drive structure is required to remove the used seedling holder from the seedling stand during planting, which is difficult to implement in practice. It was something.

It is an object of the present invention to solve the above-mentioned problems, to enable the placement and supply of seedlings to a seedling stand with a simple operation using a relatively simple structure, and to provide a system for each seedling to be planted in a planting operation. An object of the present invention is to provide a seedling transplanter that can reliably separate seeds.

[Means to solve the problem]

A characteristic configuration of the present invention is that, in the seedling transplanting machine described at the beginning, the seedling platform is moved up and down in conjunction with the operation of the planting mechanism to move the roots of the seedlings above the seedling take-out port in the vicinity of the seedling take-out port. A rake-shaped partition tool is provided to push out the partition tool, and the vertical movement drive arm of the partition tool and the drive source on the planting mechanism side are interlocked and connected via a link mechanism, and an interlocking drive state is set in the link mechanism. The present invention is characterized in that an interlock release mechanism that can be freely operated for release is provided, and an operating arm that can manually operate the vertical movement drive arm in the interlock release state is provided.

[For production]

During the planting operation, in conjunction with the operation of the planting mechanism, a rake-shaped partition placed near and above the seedling outlet in the seedling stand moves up and down to direct the roots toward the seedling outlet. Since the seedlings are pushed out, even if the placed seedlings are supplied in a block-like state, the seedlings are separated into units equivalent to planting and are maintained in an upright position. In addition, the seedlings can be reliably removed by the planting mechanism, reducing the number of seedlings removed.

Moreover, when newly replenishing seedlings onto the seedling stand, after supplying the seedlings, the linkage in the linkage mechanism is released,
By manually operating the operating arm to move the partition tool up and down, the top seedlings receive the shaking action and float up, ensuring that the root members of the seedlings are aligned near the seedling outlet.

〔Effect of the invention〕

Therefore, according to the present invention, instead of placing and feeding divided seedlings one by one for each plant, it is possible to feed them all at once in blocks, but it is possible to plant the seedlings immediately after the start of the planting operation. It eliminates irregularities in the roots of the top seedlings that are attached, and it is possible to effectively separate each planted plant and prevent the roots from lifting up during the planting operation, and it can be done smoothly with less risk of damage due to missing plants or tearing off the seedlings. This made it possible to maintain the planting operation. Furthermore, by using the drive system of the planting mechanism, a relatively simple drive structure can be constructed.

〔Example〕

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

FIG. 1 shows a strawberry seedling transplanter according to the present invention. This seedling transplanter has a link mechanism (not shown) at the rear of the traveling body.
The seedling planting device (2) is connected to a seedling planting device (2) that can be raised and lowered via a frame. It is constructed by attaching a seedling stand (4) that moves back and forth and a planting mechanism (5) that is fixed in position.

Block-shaped strawberry seedlings grown from the mother plant and divided with the old plant part removed are placed on a seedling stand (4) on a partition wall (6).
) is placed and supported in an upright position for each row separated by a seedling resting stand ( 4)
At the end of the stroke, the plant is vertically fed downward by an amount equivalent to -seed planting, and the planting claw (lO ) to be cut out and planted in the field.

The planting mechanism (5) uses a well-known mechanism for planting rice seedlings, and uses a crank swinging mechanism (11) to cut out seedlings one by one while the tip thereof traces a substantially elliptical trajectory. A planting claw (10) is provided for planting the seedling in the field, and a planting claw (10) is provided above the planting claw (10) that enters the root part of the seedling prior to activation of the planting claw (lO) and opens the root part into a seedling removal port. (
A seedling holding mechanism (33) is provided to push out and hold the seedlings toward the seedling 9). This seedling holding mechanism (33) is shown in Figures 4 and 5.
As shown in the figure, a holding arm (35) with a holding claw (34) attached is connected to a pair of front and rear swing arms (36), (36
) is pivotally connected to the planting transmission case (3) so that it can swing back and forth, and the front side swinging is connected to the cam member (38) fixed to the drive shaft (37) of the planting claw (10). Arm (36
) is engaged with the cam follower (39). Also, the long bolt (41) is screwed into the boss part (40) provided in the middle of the front swing arm (36), and the head (41a) of the bolt (41) is attached to the planting transmission case. (3) is inserted and supported by the bracket (42) provided in
A return biasing spring (43) is externally fitted onto the bolt (41). The boss portion (40) is configured to be tightened and fixed to the bolt (41) with a nut (44) so as to be adjustable in position, and is brought into contact with the head (41a) of the bolt (41) or the bracket (42). It allows you to change the forward movement position and adjust it.

In conjunction with the operation of the planting mechanism (5), the seedling platform (4) is moved upward in the vicinity of the seedling take-out port (9) and downward in the seedling feeding direction, so that the lower end of the seedling a lower position that acts on the roots and pushes them out to the seedling removal port (9);
A rake-shaped partitioning tool (12) is provided which is movable up and down, moving upward in the direction of sending out the seedlings and separating the stems of the seedlings.

To explain in detail, as shown in FIG.
) are the horizontal frame parts (13
), and this horizontal frame part (13) was erected via the left and right arm parts (14), (14) to a vertical frame (15) erected from the seedling stand (4). Swinging arm (17) attached to rotation support shaft (16)
[This is an example of a vertical movement drive arm. The rotation support shaft (16) extends over the entire fruit, and is connected to the planting transmission case (3) at the outer left and right sides of the seedling stand (4).
) side and is configured to swing within a certain range.

For example, the transmission shaft (18) on the front side in the planting transmission case (3) is interlocked with the drive source and the swing arm (17) via a link mechanism (R).In other words, A drive cam (19) is provided on the transmission shaft (18), and the transmission shaft (18)
) is supported near the driven shaft (20
) is provided with a cam follower (21) that comes into contact with the drive cam (19) once per rotation, and the driven shaft (20)
The balance arm (22), which integrally swings toward the outside of the case, is attached with the return spring (23) urging it back to the standby position. A rod (22a) is attached to the U-shaped engagement portion (22a) at the other end of the balance arm (22) and is supported on the lower surface side of the horizontal end strip of the seedling stand (4) so as to be able to swing around the horizontal axis.
24) is engaged so that it can be slid laterally. Further, an arm (25) that swings integrally with the rod (24), and an arm (26) that is swingably mounted on the pivot shaft (16) are provided.
) are interlocked and connected via a push/pull rod (27). Note that the above-mentioned linkage structures are provided on the left and right sides, respectively.

An operation arm (31) is provided in the link mechanism (R) that is capable of freely releasing the interlocking drive state, and that the swinging arm (17) can be manually operated in the interlocking release state. is provided.

In detail, as shown in FIG. 3, the arm (26
) is pivotally supported relative to the pivot shaft (16), and an operating arm (31) is mounted near the side of this arm (26) so as to be movable relative to the pivot shaft (16). The arm (26) and the operating arm (31) are attached to the arm (26) side, and the arm (26) and the operating arm (31) are inserted into a state where the arm (26) and the operating arm (31) can be rotated together, and a state where the linkage is released when the arm (26) and the operating arm (31) are pulled out. A link pin (32) is provided as a release mechanism. During planting work, always keep the linking pin (32) in the linked state.
The partition tool (12) is set to move up and down in conjunction with the planting mechanism (5). In addition, when supplying new seedlings, the connection is released so that the partition (12) can be moved up and down manually.

The horizontal frame portion (13) for each strip has left and right pins (2
8), (28) on the vertical frame (15) on the seedling surface (
It engages with a guide slot (29) formed in a direction substantially perpendicular to 4a) to support vertical movement. The swing arm (17) is positioned in the guide elongated hole ( 29), and when the swinging arm (17) moves toward the lower position, the partition (12) moves downward in the seedling feeding direction and swings. When the arm (17) moves toward the upper position, the partition (12) moves upward in the direction of sending out the seedlings.

The partitioning tool (12) extends from the upper edge of each partitioning tool (12) in the seedling supply direction to the receiving surface (30a) of the sliding rail (30).
) is formed so that the distance is larger on the upper side and smaller on the lower end side, and the lower end of the partition tool (12) in a downwardly moving state is within the tip trajectory of the planting claw (lO) in side view. It is narrowly formed to fit within the space. In addition, each partition tool (12
), the upper edge of the upper side in the seedling supply direction is formed so as to protrude in that direction more than the other ones, so that the inner action of raising up the seedlings by vertical movement can work effectively. It is.

It should be noted that the present invention is not limited to the structure shown in the accompanying drawings by adding reference numerals to the claims for convenience of comparison with the drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the seedling transplanter according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a cross-sectional view of the disengagement mechanism installation part, and Fig. 4 is a seedling holding mechanism. FIG. 5 is a plan view of the seedling holding mechanism. (4)... Seedling stand, (5)... Planting mechanism, (9)... Seedling outlet, (12)...
...Partition tool, (17) ...Drive arm, (
18)... Drive source, (31)... Operation arm, (32)... Link release mechanism, (R)...
...Link mechanism.

Claims (1)

[Claims] Place the crop seedlings on the seedling stand (4) through the seedling outlet (9).
The seedling take-out port (9)
A seedling transplanter is equipped with a planting mechanism (5) for taking out seedlings one by one and planting them, and the seedling transplanter is provided with a planting mechanism (5) for taking out and planting seedlings one by one from It moves up and down in conjunction with the operation of the mechanism (5), and the roots of the seedlings are removed from the seedling removal opening (
A rake-shaped partition (12) is provided to push out the partition (12) toward the planting mechanism (5), and a link mechanism connects the vertical drive arm (17) of the partition (12) to the drive source (18) on the planting mechanism (5) side. (
R), and the link mechanism (
A link release mechanism that can freely release the linked drive state during R) (
an operating arm (31) which is interposed with
) is equipped with a seedling transplanter.