JPH0466014A - Seedling transplanter - Google Patents

Abstract

PURPOSE:To enable sure separation into one stump and reduce fear in which injury of seedling or defect stump are produced by separating and moving the tip of movable pawl pressed in the direction close to a fixed pawl from the fixed pawl according to taking-out operation of a planting mechanism. CONSTITUTION:The seedling holding tool 22 which operates prior to a planting mechanism 6, holds the first crop seedling (a) pushes out to the vicinity of seedling taking-out port (b) simultaneously forcibly moves the held seedling (a) to the seedling taking-out port (b) and continues holding stage of the moved seedling (a) till a planting mechanism 6 holds the moved seedling (a) is provided. The seedling holding tool 22 constitutes the first seedling holding part 22A and supporting arm 22B and a movable pawl 24 relatively movably pivoted to a fixed pawl 23 fixed to the supporting arm 22B and supporting arm 22B and pressed to the direction close to the fixed pawl 23 is provided in the first seedling holding part 22A. The tip of the movable pawl 24 is separately moved from the fixed pawl 23 toward the planting mechanism side according to taking- out operation of the planting mechanism 6.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a seedling transplanter for transplanting crop seedlings such as rush grass, and more specifically, the present invention relates to a seedling transplanter for transplanting crop seedlings such as rush grass, and more specifically, a seedling transplanter for transplanting crop seedlings such as rush grass, etc. This invention relates to a seedling transplanter equipped with a planting mechanism that sends out the crop seedlings toward a seedling take-out port, takes out the sent out crop seedlings, holds them, and plants them.

[Conventional technology]

As a conventional seedling transplanter, there is one having a structure previously proposed by the present applicant in Japanese Patent Application No. 1-146198. In other words, a seedling holder is provided that operates prior to the planting mechanism, moves the first seedling to the extraction port, and holds it until the planting mechanism operates, and the tip of this seedling holder is held by two fixed claws. It consists of

[Problem to be solved by the invention]

The seedling holder in the above conventional structure is used to separate target seedlings from subsequent seedlings when the planting mechanism operates to take out the seedlings, and to push the subsequent seedlings to the seedling removal position after the seedlings have been taken out. .

However, in the conventional structure described above, when the seedling is taken out, the fixed claw moves approximately linearly to latch onto the succeeding seedling and maintains its holding posture. It may not always work, and the planting may remain stuck to the target seedling. If the planting mechanism is operated in such a state, the planting stock will be torn, damaging the seedlings and making it impossible to separate each plant smoothly. It was also the cause of stocks.

The present invention aims to solve the above-mentioned problems.

[Means to solve the problem]

A characteristic configuration of the present invention is that, in the seedling transplanter described at the beginning, the seedling transplanter operates prior to the planting mechanism to hold the first crop seedling that has been fed out to the vicinity of the seedling take-out port, and to hold the seedling. A seedling holder is provided that forcibly moves the seedling to the seedling take-out port and maintains the moved seedling in a holding state until the planting mechanism acts to hold the seedling. and a support arm, and the tip seedling holding section includes a fixed claw fixed to the support arm, and a movable claw pivoted to the support arm so as to be relatively movable and biased in a direction approaching the fixed claw. The movable claw is configured such that its tip portion moves away from the fixed claw toward the planting mechanism as the planting mechanism takes out the plant.

[For production]

Prior to the planting mechanism, the seedling holder moves the target seedlings to the seedling take-out port and holds them until they are delivered to the planting mechanism, so that the seedlings can be delivered smoothly to the planting mechanism, and
With the operation of the planting mechanism, the movable claw in the seedling holding section pushes out the target seedling toward the planting mechanism while either the fixed claw or the movable claw holds the subsequent seedling.

〔Effect of the invention〕

As a result, even when the target seedling and subsequent seedlings are intertwined at the roots, they are forcibly separated by the separation action between the fixed claw and the movable claw, making it possible to reliably separate each plant. As a result, there is less risk of damage to seedlings or missing plants.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

A description will be given of a rush seedling planting device (A) that is attached to the rear end of a traveling body (not shown) via an elevating link mechanism (1). As shown in Figure 1, this seedling planting device (A) consists of a seedling platform (2) that moves back and forth horizontally at a constant stroke, and a feed case (2) that receives power from the traveling body (not shown).
3), a plurality of planting cases (4) extending rearward from this feed case (3), and planting arms (4) that are pivotally supported on both lateral sides of this planting case (4). 5), a planting claw type planting mechanism (6) attached to the tip of the planting arm (5), and a grounding float (7) arranged below the planting case (4).

Next, the structure of the seedling stand (2) will be explained.

The seedling mounting surface (C) of this seedling mounting table (2) is divided into a plurality of sections corresponding to the number of planting rows, and each division accommodates rows of rice grass seedlings as crop seedlings in a plurality of horizontal rows.

For this group of rush seedlings, a plurality of resin partition plates (8) are installed in parallel in each vertical row to separate adjacent bacterial groups, and these partition plates (8) are used to feed out the rush seedlings. They are supported by a frame at the upper end in the direction, and
They are supported by a round rod frame (9A) that passes through only their upper ends laterally at the lower end in the direction of feeding out the rice seedlings. Then, install multiple partition plates (8
) and both side walls (8A), (8A) are constructed as a unit, and this seedling storage unit is configured to be removable from the seedling stand (2). To be more specific, when planting seedlings, the lower and front sides of the seedling storage unit are open to enable vertical feeding and planting of seedlings, but when seedling supply is set, it is used to support the rush (a). To,
As shown in FIG. 3, a seedling scooping plate (10) that can be pulled out backwards is attached to the bottom side, and a front side plate (11) that can be pulled out upwards is attached to the front side.

In addition, on the lower end side of the seedling stand (2), there are fixed walls (8A) connected to the left and right side walls (8A) of the seedling storage unit.
12), (12) are erected from the row partition intermediate member (13), (13) of the seedling stand (2), and each fixed wall (12)
).

A seedling receiving part (14) is installed over (12).

The seedling storage cassette has retaining pieces (15), (15) formed on both left and right sides of the seedling storage cassette.
A support member (17) that is configured to engage with and fix the position of the front plate (16) and that locks and supports the front side plate (11);
The fixing wall (12) is configured to be received and supported on the rear end edge of (12) via (17). Further, the seedling receiving portion (14) is formed with a plurality of locking protrusions (18) that act on the stem end side of the seedling to prevent it from falling sideways.

A seedling pushing tool (19) that presses the rear end of the seedling toward the planting mechanism (6) is attached to the seedling storage unit set on the seedling stand (2). As shown in Fig. 6, this seedling pushing tool (19) is attached to the left and right side walls of the seedling storage unit (
8A), a support part (19A) for slidingly supporting the upper edge of (8A), and this support part (19A).
), and the lower end of the suppressing part (19B) is between the locking claws (21) of the belt-type vertical feed mechanism (20) for sending out seedlings. The vertical feed mechanism (20) and the vertical feed mechanism (20) are configured to slide in and engage with each other.

It operates prior to the planting mechanism (6) and opens the seedling take-out port (b).
), the first crop seedling (a) that has been brought out to the vicinity of A seedling holder (22) that maintains the holding state until the attachment mechanism (6) acts to hold the seedling is provided, and this seedling holder (22) is connected to the tip seedling holder (22A) that holds the seedling and the support arm (22B). )
The tip seedling holder (22A) is pivoted to a fixed claw (23) fixed to the support arm (22B) and the support arm (22B) so as to be relatively movable. 23), the movable claw (24) is provided with a movable claw (24) whose tip part is removed from the fixed claw (23) as the planting mechanism (6) is taken out. It is configured to move away toward the planting mechanism.

To be more specific, as shown in FIGS. 2(4) and (0), the seedling holder (22) is connected to the planting case (4) via the recirculating link mechanism (25), and the planting mechanism ( 6) drive shaft (2
The cam (27) attached to the cam (27) is configured to move forward in synchronization with the operation of the planting mechanism (6) in order to act on the leading surface in advance of the planting mechanism (6). There is. The fixed claws (23) are integrally fixedly protruded from the tip of the support arm (22B) on the left and right sides, and the movable claws (
24) is pivotally supported in the middle of the support arm (22B) so that the balance can swing freely. The spring (29) swings and urges the tip side to approach the fixed claw (23), and when moving forward, the upper part of the planting arm (5) comes into contact with the rear side of the movable claw (24). It is configured so that the tip part is moved away from the fixed claw (23) by relative rocking.

In addition, the movable claw (24) is configured to be in a position that overlaps the planting claw (6A) of the planting mechanism (6) in a side view in the above-mentioned separated state (see FIG. 2 (rl)). .

With this configuration, it is possible to reliably separate the target fungus and subsequent seedlings even if their roots are intertwined during planting, and if the seedlings are caught in the movable claws (24), Even if the seedling extrusion fitting (6) in the planting mechanism (6)
6B) can also be used to remove stuck seedlings.

Instead of being moved away from the fixed claw (23) by swinging, the movable claw (24) may be moved away from the fixed claw (23) by sliding movement.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the seedling transplanter according to the present invention, with FIG. 1 being a side view, FIGS. 2(4) and (o) being a side view showing the operating state of the seedling holder, and FIG. FIG. 4 is a plan view of the seedling holder, FIG. 5 is a plan view of the seedling stand, and FIG. 6 is a front view of the seedling pusher. (2)... Seedling stand, (6)... Planting mechanism, (22)... Seedling holder, (22A)...
...Tip holding part, (22B) ...Support arm, (23) ...Fixing claw, (24) ...
・Movable claw, (a)...seedling, (b)...
Seedling outlet.

Claims (1)

[Claims] A plurality of crop seedlings (a) are placed on a seedling stand (2), and the crop seedlings (a) are fed out toward the seedling take-out port (b), and the seedlings are fed out. A seedling transplanter is provided with a planting mechanism (6) for taking out, holding and planting crop seedlings (a), which operates prior to the planting mechanism (6) and opens the seedling take-out port (b).
), the first crop seedling (a) that has been brought out to the vicinity of A seedling holder (22) that maintains the holding state until the attachment mechanism (6) acts to hold the seedling is provided, and this seedling holder (22) is connected to the tip seedling holder (22A) that holds the seedling and the support arm (22B). )
The tip seedling holder (22A) includes a fixed claw (23) fixed to the support arm (22B) and a fixed claw (23) which is pivoted to be relatively movable on the support arm (22B). 23), the movable claw (24) is provided with a movable claw (24) whose tip part is removed from the fixed claw (23) as the planting mechanism (6) is taken out. A seedling transplanter configured to move away from the planting mechanism.