JPH062503Y2 - Rice transplanter seedling feeding structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a seedling stand on which mat-like seedlings are placed by laterally reciprocating laterally driven with a predetermined stroke, and a seedling take-out port of the seedling stand. From the above, the present invention relates to a seedling feeding structure of a rice transplanter equipped with a planting arm for taking out a seedling and planting it in a field.

[Conventional technology]

With regard to the seedling feeding structure of the rice transplanter, for example, the actual exploitation Sho 57-5
As disclosed in Japanese Patent No. 4225, there is one in which a star-shaped rotary nail is provided on the seedling surface of a seedling stand and the rotary nail is brought into contact with the back surface of a mat-shaped seedling.

As a result, at the side stroke end of the seedling stand,
By rotating the rotary claws by a predetermined angle, the mat-shaped seedlings are sent to the seedling take-out port side of the seedling stand.

[Problems to be Solved by the Invention] The above-mentioned rotary claw is configured to come into contact with and be hooked at one location on the back surface of the mat-shaped seedling.

Therefore, if the mat-shaped seedling floats up or the part of the mat-shaped seedling that the rotary nail contacts is broken, the hooked state between the rotary nail and the mat-shaped seedling is released, and the rotary nail is placed on the back surface of the mat-shaped seedling. There is a risk of slipping, and it may not be possible to normally send the mat-like seedlings on the seedling stand to the seedling take-out side.

An object of the present invention is to make it possible to reliably feed the mat-like seedlings on the seedling stand to the seedling take-out side at the stroke end of the lateral feeding of the seedling stand.

[Means for solving problems]

A feature of the present invention is that the seedling feeding structure of the rice transplanter as described above is configured as follows.

That is, a pair of left and right endless rotating chain mechanisms that are driven to rotate by the set amount toward the seedling take-out side at the sideways stroke end of the seedling placing table are provided on the seedling placing table, and the chain of the endless rotating chain mechanism is One coupling pin and a left and right engaging portion that can be elastically engaged across the coupling pin away from this,
A seedling pushing member is provided which is capable of pressing and pushing the rear end of the mat-like seedling on the seedling stand.

[Action]

(i) When configured as in the present invention, as shown in FIGS. 1 and 3, for example, when the seedling stand (5) reaches the stroke end of the lateral feed, the left and right endless rotating chain mechanisms (8) are moved. The seedling take-out port (10) side is rotated by a set amount. As a result, the seedling pushing member (9) pushes the rear end of the mat-shaped seedling (A) toward the seedling take-out port (10) side with the rotation of the left and right endless rotation chain mechanism (8).

In this case, the rotating nails are not hooked on the back surface of the mat-shaped seedling as in the conventional structure, but in the present invention, the rear end of the mat-shaped seedling is pushed and sent to the seedling take-out side, so the mat-shaped seedling floats. Regardless of this, even if it is partially collapsed, the mat-like seedling can be normally sent to the seedling take-out port side.

(ii) When the seedling pushing member moved to near the seedling take-out port to supply new mat-shaped seedlings, the seedling pushing member was removed from the left and right endless rotating chain mechanism, and new mat-shaped seedlings were supplied. Later, the seedling pushing member may be attached to the left and right endless rotating chain mechanisms again.

In this case, for example, as shown in FIGS. 2 and 4, the left and right engaging portions (9a) of the seedling pushing member (9) are connected to the endless rotating chain mechanism.
Since it is configured to be elastically engaged with the connecting pin (8c) of (8) and attached, the seedling pushing member (9) can be easily attached and detached to the endless rotating chain mechanism (8). be able to.

Thus, it is not necessary to loosen and re-tighten the bolts and nuts for attaching and detaching the seedling pushing member, and a special tool for attaching and detaching is not particularly necessary.

[Effect of device]

As described above, the seedling pushing member makes it possible to reliably send the mat-shaped seedlings to the seedling take-out side without slipping, and the poor feeding of the mat-shaped seedlings makes it possible for the seedlings to be transferred to the planting arm better by the planting arm. It was possible to prevent planting defects that would not be taken out.

Further, since the seedling pushing member can be easily attached and detached without any particularly troublesome operation or a dedicated tool, the working efficiency is not lowered.

〔Example〕

Hereinafter, a walk-behind rice transplanter according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 5, a pair of left and right wheels (1), engine (2)
And, in the rear part of the machine that has the steering handle (3) etc., it is composed of two planting arms (4) arranged side by side in the machine and a seedling stand (5) for supplying seedlings to the planting arms (4). In addition to the seedling planting section, a grounding float (6) is installed in the lower center of the machine to construct a two-row planting type rice transplanter.

Next, the structure of the seedling stand (5) will be described. First,
As shown in Figs. 2 and 3, the seedling placement table (5) having two rows of seedling placement surfaces (5a) can be reciprocally driven left and right in conjunction with the planting movement of the planting arm (4). Guide frame (7) with seedling take-out port (10)
Installed on top. An endless rotating chain mechanism (8) is installed on both sides of the seedling stand (5) by the guide (12).
It is arranged in the seedling feeding direction along a). The drive wheel (8a) of this endless rotating chain mechanism (8) is the chain (8b).
The ratchet mechanism (not shown) is installed so that the upper part of the seedling operates only in the seedling feeding direction. When the seedling stand (5) reaches the left and right lateral feed stroke ends, it is set in conjunction with this. It is configured to be driven to rotate by an amount. Furthermore, an elongated hole (5b) is opened in the seedling stand (5) along the endless rotation chain mechanism (8).

As shown in FIG. 2, the seedling pushing member (9) has substantially the same front shape as the cross section of the seedling stand (5), and as shown in FIGS. 2 and 4, the seedling pushing member (9) Engagement portions (9a) formed by bending a leaf spring are provided at both ends of 9). Then, the seedling pushing member (9) is laid across both the seedling surface (5a), mat seedlings (A)
The engaging part (9a) is fitted over the one linking pin (8c) of the chain (8b) and the connecting pin (8c) apart from this, while being fitted to the rear end of the chain.

When the mat seedling (A) on the seedling stand (5) becomes small, the seedling pushing member (9) may be removed and a spare mat seedling (A) may be supplied. And the guide wheel (8c) of the endless rotating chain mechanism (8)
Is configured so that it can be manually rotated in the seedling feeding direction by an operating lever (11) with a ratchet mechanism (not shown) installed. Mount the member (9) in a slightly upper position and operate the lever (11).
Is operated to move the seedling pushing member (9) downward and press it against the rear end of the replenished mat-like seedling (A).

It should be noted that although a number is given in the section of the scope of claims for utility model for convenience of comparison with the drawings, the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawing shows an embodiment of a seedling feeding structure of a rice transplanter according to the present invention. Fig. 1 is an overall front view of a seedling stand, Fig. 2 is a view taken along the line I-I in Fig. 1, and Fig. 3 are shown. II in Fig. 1
FIG. 4 is a partially enlarged side view of the vicinity of the portion where the seedling pushing member is attached to the chain, and FIG. 5 is an overall side view of the walk-type rice transplanter. (4) …… Planting arm, (5) …… Seedling stand, (8) …… Endless rotating chain mechanism, (8b) …… Chain, (8c) …… Connecting pin, (9) …… Seedling Pushing member, (9a) …… engagement part, (10) …… seed mounting hole, (A) …… mat seedling.

Claims (1)

[Scope of utility model registration request] 1. A seedling stand (5) on which a mat-like seedling (A) is placed, which is driven to reciprocate laterally with a predetermined stroke, and a seedling take-out port (10) of the seedling stand (5). ), The seedling feeding structure of a rice transplanter equipped with a planting arm (4) for taking out the seedlings and planting them in the field, at the stroke end of the lateral feeding of the seedling stand (5), A pair of left and right endless rotating chain mechanisms (8), which are driven to rotate by a set amount on the take-out port (10) side, are provided on the seedling stand (5), and the chain (8b) of the endless rotating chain mechanism (8) is provided. ) One connecting pin (8c), and provided with the engaging portion (9a) that can be elastically engaged across the connecting pin (8c) away from this on the left and right, of the seedling stand (5) A seedling feeding structure for a rice transplanter equipped with a seedling pushing member (9) capable of pressing and pushing the rear end of the mat-like seedling (A).