JPS605766Y2 - rice transplanter - Google Patents

Description

[Detailed explanation of the invention] In general, when planting seedlings with a rice transplanter, in sandy fields where it is difficult for the seedling blocks to penetrate into the soil, the seedlings may be planted shallowly or the planting posture may be disturbed, making it difficult to properly plant the seedlings. There was a problem that made it difficult to plant.

For this reason, a trench digging tool is provided at the front of the seedling planting device in the direction of movement of the machine to penetrate into the planting soil and form a trench in advance at a location corresponding to planting, and the seedlings are planted in the trench dug by the trench digging tool. It is known to plant.

Actual Public Official Publication No. 50-923.

However, in this method of planting seedlings by digging a trench, there is no resistance to pushing out the seedlings, unlike in the method of planting seedlings directly into the ground without forming a trench. There is a disadvantage that the seedlings sometimes dance, and the planted seedlings sometimes fall back and forth.

Therefore, as a means to eliminate the above drawbacks,
As shown in Publication No. 11551, it is conceivable to make the groove width narrower than the width of the seedling block, but if the width of the trench digging tool is formed to be open from top to bottom, when driving the seedling block, both sides of the groove The soil collapses and accumulates on the bottom surface, resulting in resistance to planting seedlings, which has the disadvantage that seedlings cannot be planted well.

Therefore, it is conceivable to dig the groove deeper to allow the collapsed soil on the side surfaces of the groove to escape to the lower surface of the seedling block, but this configuration has the disadvantage of increasing running resistance.

The present invention aims to solve the above-mentioned drawbacks by devising the shape of the trench digging tool.

The technical means of the present invention taken to solve the above problems is to penetrate into the planting soil and plant the seedlings at the forward position of the seedling planting device in the direction of movement of the machine and at the forward position of the planting site using the planting claw. In addition to disposing a trenching tool that forms a groove in advance at the corresponding location, the outer shape of this trenching tool when viewed from the direction of movement of the aircraft is configured to expand downward, and from this configuration, the following effects can be obtained. play.

In other words, since the shape of the trench digging tool is formed so that it expands downward when viewed from the direction of movement of the machine, the soil on the sides of the trench that has collapsed due to the driving of the seedling block escapes laterally and is less likely to accumulate vertically. , the pushing resistance of the seedling block was reduced, and the seedlings could be planted successfully.

Further, with this configuration, the length of the trenching tool does not become long, so the moment applied to the machine body is also reduced, and running resistance does not increase.

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

The figure shows a seedling planting device 1 equipped on a walk-behind rice transplanter, which includes an inclined seedling platform 2 that moves back and forth horizontally at a constant stroke, and a vertically circulating system between the lower end of this seedling platform 2 and the planting soil. It is composed of an operating planting claw 3, a pushing tool 4, etc., which is driven in and out along the water boat direction of the planting claw 3,
Along the lower end row of the seedling group W placed on the seedling stand 2, the seedling blocks W' of one plant at a time are scraped and separated, and the seedling blocks W' are separated from the tip of the nail and the seedling pushing tool 4. After bringing the seedling block downward while supporting it in cooperation with the seedling block, the seedling pusher 4, which protrudes toward the tip of the nail, pushes out the seedling blocks into the planting soil and separates them. There is.

In addition, 5 in the figure is a float connected and supported by the machine frame, and has the function of sliding on the mud surface to support the machine body and the function of leveling the planting soil surface in advance.

In addition, the rice transplanter is capable of planting the seedling blocks W' accurately at the desired planting depth and posture even under conditions such as sandy soil where the seedling blocks W' are difficult to penetrate into the planting soil. A groove digging tool 6, which will be described below, is provided to enable this.

This trench digging tool 6 is connected and supported by the float 5, and plunges into the planting soil at a location forward of the seedling planting device 1 in the direction of movement of the machine and pre-prepares a trench A in a location corresponding to planting. 2, and its shape when viewed from the direction of travel of the aircraft is configured to expand downward as shown in FIG.

If the groove digging tool 6 is provided as described above, the seedling blocks W' are sequentially planted in the pre-formed groove A, and are planted at a desired depth and in a desired posture. Since the seedling block W' is formed in a downwardly expanding shape, the opening of the groove A tends to collapse and cover the roots of the seedling block W' as soon as the seedling block W' is planted, and the seedling flock W' after being planted. This will prevent your posture from becoming disordered.

Incidentally, when configuring the trench digging tool 6, if its cross-sectional shape is made to have a sharp point protruding in the direction of travel as shown in Figure 3, A, C, 2, and E, the trench digging tool 6 can be constructed. 6 may have a smaller moving resistance.

Further, the present invention can also be applied to a rice transplanter that plants the seedling blocks W' by dropping them into the planting soil one after another.

[Brief explanation of drawings]

The drawings show an embodiment of the rice transplanter according to the present invention, in which Fig. 1 is a side view of the seedling planting device, Fig. 2 is a front view of the trench digging tool, and Fig. 3 is a is a cross-sectional plan view of the trench digging tool. 1... Seedling planting device, 3... Planting claw, 4
...Seedling pushing tool, 6...Ditching tool, A.
...Groove, W'...Seedling block.

Claims (1)

[Scope of utility model registration request] A trench digging tool that penetrates into the planting soil and forms a groove A in advance at a location corresponding to planting at a location forward of the seedling planting device 1 in the machine body traveling direction and at a location in front of the planting location by the planting claws 3. 6, and the outer shape of the trench digging tool 6 when viewed in the direction of movement of the machine body is configured to expand downward.