JPH0139143Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seedling planting device in which a fixed claw and a movable claw that can swing open laterally are arranged side by side at the tip of a planting arm that circulates up and down.

Conventionally, in this type of planting device, when the planting arm holding the seedlings for planting circulates within the field, the movable claw swings open laterally at the same time as planting, thereby holding the planted seedlings. Although it is configured to be released, there is a risk that the side soil of the planted seedlings will be scraped off by the lateral opening swing of the movable claw, and the planting posture of the seedlings will be disturbed.

In view of the above circumstances, the present invention has an object to provide a plant that does not disturb the planting posture of seedlings even though it is a simple structure addition.

The characteristic structure of the seedling planting device according to the present invention, which has been made to achieve the above object, is that: a mulch arm that plunges into the rice field on the side of the movable claw side of the seedling planting area and pushes soil toward the seedling planting area; A soil receiving arm that penetrates into the rice field and prevents the soil from moving outward on the side where the fixed claw is present is configured to be driven up and down integrally in synchronization with the planting arm. .

The effects of the present invention having such a characteristic configuration are as follows.

In other words, in order to ensure the planting posture of the seedlings, not only the backfilling effect by the earthing arm is used, but also
In order to regulate the planting posture of the seedlings, which is disturbed by the outward movement of soil inevitably induced by the earth-harvesting action, the soil-receiving arm is provided, and both the earth-harvesting and the soil-receiving Through the cooperative action of the arms,
We have now been able to provide something that can ensure a stable planting posture for seedlings.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a seedling planting device A is constructed by providing a seedling platform 1, a planting mechanism 2, and a float 5 that supports the body in cooperation with wheels 3. A control handle 6 and a line drawing mechanism 7 are provided on the back of the platform 1 to constitute a walking rice transplanter.

The planting mechanism 2 will be described in detail based on FIGS. 2 and 3. A crank is connected to the lower end of the planting case 10, which is transmission connected to the rear end of the transmission case 9 extending rearward from the planting case 8. A crank arm 12 is attached to the crankshaft 11.
A planting arm 14, which is pivotably supported by a swing link 13 and a crank arm 12 so as to be able to swing relative to each other, is configured to be able to circulate up and down around the crankshaft 11. At the tip of the planting arm 14, a knife-shaped fixed claw 15A and a knife-shaped movable claw 15B that can swing open laterally are arranged side by side. The cam 16 that can be opened and swung laterally is provided with a cam 16 that rotates from the crankshaft 11 through the crank arm 12 by chain transmission, and a movable cam 16 that is pivoted so as to be swiveling around the horizontal axis X. Claw 15B and the cam 1
6, in conjunction with the rotation of the cam and against the biasing force of the spring 18, the movable claw 15B
A sliding rod 17 that freely swings and opens laterally.
It is configured by providing.

On both sides of the planting arm 14, there are soil collecting arms 19 that plunge into the rice field at the side of the movable claw side of the seedling planting area and push soil toward the seedling planting area;
A soil receiving arm 20 that penetrates into the rice field and prevents the soil from moving outward is provided on the side where the fixed claw is present, and both 19 and 20 are integrated in synchronization with the planting arm 14. It is configured to swing up and down.

To explain in detail the synchronous drive mechanism with the planting arm 14, the shaft member 3 is pivotally supported at the tip of the left and right transmission case 21 extending from the planting case 10.
3 is chain-transmitted to the crankshaft 11, and the two arms 19, 20 fixedly extended to the shaft member 33 are configured to swing in synchronization with the planting arm 14.

The drawing mechanism will be described in detail based on FIG. 6.
A pair of left and right line drawing tools 24, 24 that draw a planned travel line on the side of the aircraft that will serve as an indicator when traveling for planting in the next process.
is pivotally supported on a pipe-shaped support frame 25 so as to be able to swing up and down between a drawing action position protruding outward from the side of the fuselage and a storage position retracting toward the fuselage side, and the inner side of the drawing tool 24 A locking member 26 that can freely fix and release the working position of the wire drawing tool 24 is pivotally supported to be vertically swingable, and the wire drawing tool 24 is attached to each of the wire drawing tool 24 and the locking member 26. An engagement protrusion 24a and an engagement camshaft 26a are provided to lock in the working position, and
A spring 27 is stretched between the wire drawing tool 24 and the locking member 26 for urging the wire drawing tool 24 toward the storage position and urging the locking member 26 toward the locking side. Then, the wire drawing tool operating lever 32, which is swingably supported on the support frame 25, is attached to the rod 29.
The wire drawing tool 24 is interlocked and connected to the wire drawing tool 24 via the
is configured to be freely operable in the drawing action position, and
As the planting clutch operating lever 28 is moved from the clutch engaged position to the clutch disengaged position, it is interlocked with the locking member 26 via the release wire 31 so as to operate the locking member 26 to the unlocking side. They are connected so that the line drawing tool 24 can be operated to the retracted position when the planting clutch is disconnected. As a result, the release wire 31 is pulled in by moving the planting clutch operating lever 28 toward the clutch disengagement side, and this pulling in swings the locking member 26 to engage it with the wire pulling tool 24. Then, the wire drawing tool 24 is swung to the storage position. Furthermore, since the wire drawing position locking mechanism of the wire drawing tool 24 utilizes the engagement action between the engagement protrusion 24a and the engagement roller 26a, it is independent of the clutch disengagement operation of the operating lever 28. By swinging the wire drawing tool operating lever 32, the locking member 26 is forcibly displaced in the disengagement direction by the cam action of the engagement protrusion 24a and the roller 26a, and the locked state is arbitrarily released. Then, the wire drawing tool 24 can be stored. Therefore, for example, when planting along a headland or when final planting in a modified field, it is possible to plant with the line drawing tool 24 stored.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling planting device according to the present invention, and FIG. 1 is a side view of the rice transplanter, FIG. 2 is a side view of the planting device, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a side view of the rice transplanter. is a vertical sectional view of the planting arm, FIG. 5 is an enlarged partially cutaway plan view of the main part of the planting arm, and FIG. 6 is an enlarged view of the main part showing the operating mechanism of the wire drawing tool. 14... Planting arm, 15A... Fixed claw, 15
B...Movable claw, 19...Matching arm, 20...
Soil receiving arm.

Claims (1)

[Scope of utility model registration request] A fixed claw 15A is attached to the tip of the planting arm 14 that circulates up and down, and a movable claw 15B that can swing open laterally.
This is a seedling planting device that is installed in parallel with the soil arm 19, which plunges into the rice field at the side of the seedling planting area where the movable claw is present and pushes the soil toward the seedling planting area, and the side where the fixed claw is present. a soil receiving arm 20 that penetrates into the rice field at the section and prevents the soil from moving outward;
A seedling planting device configured to integrally move up and down in synchronization with the planting arm 14.