JPS6329375Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention is characterized in that the planting posture of seedlings is maintained normally during rice planting work using a rice transplanter.

(b) Prior Art Conventionally, a technology has been known that allows the position of the seedling holding rod of a rice transplanter to be adjusted in the direction of the seedling platform. For example, see Utility Model Publication No. 55-42649.

(c) Problems that the invention aims to solve In the past, the question of evaluating the performance of rice transplanters was whether or not they functioned perfectly.

For example, questions were asked about whether there were any missing plants, whether it could be planted in wet fields, whether it could be planted even in paddy fields with a lot of red soil, whether it had good straightness, whether floating seedlings did not occur, etc.

However, due to technological improvements to date, these functional performances are now fully satisfied, and in the future, the issue of planting posture after the seedlings are planted will become an issue as an additional performance. It was.

The planting position is greatly influenced by the condition of the planting claws from when they pick up the seedlings from the seedling stand until they are transported into the soil. In particular, the position of the planting claws when inserting the seedlings into the seedlings held down by the seedling presser is particularly important. It has a big impact.

However, when the seedling stand is adjusted up and down to adjust the amount of seedlings taken vertically, the relationship between the driving position of the planting nail and the position of the seedling, which is bent forward due to the stems and leaves being pressed down by the seedling presser rod, changes. The angle of inclination of the planting nail and the seedling, which had been constant until then, was changing, causing poor planting posture.

In order to solve these problems, the present invention attempts to make the inclination angle of the seedling constant with respect to the driving position of the planting nail.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

In a configuration in which the position of the seedling platform 1 of the rice transplanter can be adjusted up and down in order to adjust the amount of seedlings taken vertically, the seedling platform 1
An arm 22 supported on the side of the seedling platform drive case 10, which does not move when adjusting the amount of vertical seedlings taken, is pivotally connected to the support part of the seedling presser bar 5, which is rotatably supported vertically by a hanging rod 21 on the side pivot part 24. However, the seedling presser rod 5 is configured to change its position in the vertical direction of the seedling platform 1 in conjunction with the vertical movement of the seedling platform 1 to take up the amount of seedlings vertically.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

FIG. 1 is an overall side view of the walking rice transplanter.

Various devices are mounted on the float 6, and the lug wheel 8
Advance at. An engine 13 is mounted on the front end, and power is transmitted through a frame tube 12 via a power transmission shaft to drive the seedling stand drive case 10 and the planting claw drive case 11. The feed shaft 18 is reciprocated from side to side by a feed screw in the seedling table drive case 10, and the seedling table 1 is moved from side to side via the feed shaft support 4.

The seedling platform 1 has its lower end placed on a seedling take-out plate 7, and its upper end supported by a support rail 25 and a support roller 26.

The seedling take-out plate 7 and the support roller 26 are connected to the support body 14
It is connected with. The support body 14 is raised and lowered by the vertical seedling removal amount adjustment screw 2, and the positional relationship between the planting claws 3 and the seedling mounting table 1 is changed to adjust the vertical seedling removal amount. 9 is a handle.

FIG. 2 is an enlarged side view of the seedling stand.

A feed shaft 18 is protruded left and right from a seedling platform drive case 10, and feed shaft supports 4 are fixed to both ends of the feed shaft 18, and the feed shaft supports are reciprocated left and right. A seedling stand 1 is fixed to a feed shaft support 4.

Vertical feed arm 17a from seedling stand drive case 10
protrudes, the vertical feed link 17b, the arm 17c,
The vertical feed ratchet wheel is rotated via 17d when the seedling platform 1 comes to the left and right ends. Reference numeral 11 denotes a planting claw drive case, which rotates the planting claw 3 in an oblong planting claw orbit. 2 is a seedling vertical adjustment screw that is inserted into the long hole of the support 14 and tightened by loosening the bolts 15 and 16 to adjust the seedling platform 1 up and down, and after adjustment, tighten the bolt 1 again.
Tighten 5 and 16.

The feed shaft supports 4 are provided on the left and right sides, and 19 reinforcing shafts are bridged and reinforced between the two.

Conventionally, the seedling presser rod 5 was supported from the side plate of the seedling stand 1, but in the present invention, the feed shaft support 4
It is supported by a hanging rack from the feed shaft, and when the seedling stand is adjusted up and down to adjust the amount of seedlings taken vertically, the position of the seedling presser rod is adjusted accordingly.

When adjusting the seedling platform 1 up and down to adjust the amount of seedlings taken vertically, the seedling platform 1 actually slides in parallel. This is because although the movement is rotational and sliding around the feed shaft 18, the amount of sliding is small, so only engagement is performed in order to move approximately linearly.

FIG. 3 is a side view showing the support portion of the seedling presser rod 5, and FIG. 4 is a rear view thereof.

The seedling presser rod 5 is suspended by a hanging rod 21, and the hanging rod 21 is pivotally supported on the feed shaft support 4 by a pivot portion 24. Since the seedling presser rod 5 swings while being suspended by the hanging rod 21, the position of the hanging rod is fixed by a pin 23 at the tip of an arm 22 fixed to the feed shaft 18.

Even if the feed shaft 18 moves up and down on the seedling platform to adjust the amount of seedlings taken vertically, the shaft itself does not rotate.
2 always remains fixed. Therefore, the pin 23 also serves as a fixed pivot point.

On the other hand, the feed shaft support 4 slightly slides up and down to adjust the amount of seedlings taken vertically.

The position of the pin 23 is a fixed pivot point, and the suspension rod 21
Since the pivot point 24 serves as a pivot point, the hanging rod 21 rotates around the pin 23, and the seedling presser rod 5 moves back and forth up and down along the surface of the seedling stand 1.

When the seedling vertical removal amount is "large", the seedling pressing bar 5 moves forward and upward, and when the seedling vertical removal amount is "small", the seedling pressing bar 5 moves backward and downward.

Figure 5 is a diagram showing the relationship between the planting claw when the amount of vertical seedlings taken is small with a seedling presser rod that is not linked to the conventional adjustment of the amount of vertically taken seedlings, and Figure 6 is the same when planting when the amount of vertical seedlings taken is large. Figure 7 is a diagram showing the relationship with the planting claw when the amount of vertical seedling removal with the seedling presser rod is small when linked with the adjustment of the amount of vertical seedling removal. It is a drawing showing the relationship with planted nails when the amount of vertical removal is large.

FIGS. 5 and 6 show the conventional case, in which the position of the seedling presser bar can be adjusted up and down, but cannot be adjusted back and forth in the direction along the seedling stand. Since it is not linked to the adjustment of the amount of seedlings taken vertically, it is always at the same position with respect to the seedling mounting table 1 and the seedling take-out plate 7.

On the other hand, since the relative position with the planting claw is different, the slope of the seedling to be cut by the center point P of the tip of the planting claw 3 and transported into the soil with respect to the planting claw is the amount of vertical seedling removal. If the number of seedlings is small, the seedling A1 will be located at the lowest end of the seedling stand 1, and its angle will be b.

On the other hand, if the amount of seedlings taken vertically is large, the center point P will be located slightly above the bottom of the seedling platform 1, the seedlings at that position will be A2, and the angle with respect to the planting claw 3 will be c. Since the angles b and c are different, adjusting the amount of vertical seedling removal changes the inclination angle of the seedlings with respect to the planting claws 3, leading to variations in the planting posture.

Since the present invention is constructed as shown in Figs. 3 and 4, when the seedling platform 1 is moved back and forth to adjust the amount of seedlings taken vertically, the position of the pin 23 does not move, so the seedling presser rod 5 is moved vertically. When a large amount is being taken, it moves forward, and when a small amount is being taken, it moves backwards.

Therefore, when the amount of seedlings taken vertically is small, as shown in Fig. 7, the center point P of the planting claw 3 is the inclination angle a of the seedling A3 to be cut and transported.
Therefore, even when a large amount of seedlings are taken vertically, as shown in Figure 8, the angle of inclination of the seedling A4 cut and transported by the center point P of the planting claw 3 is also a, and the angle of inclination of the seedling to the planting claw is always the same. The plant can be cut and transported, and the planting position can be kept constant.

(f) Effects of the invention Since the present invention is constructed as described above, it has the following effects.

First, in the seedling stand of the rice transplanter, the seedling presser rod is configured to change its position in the direction of the stand in conjunction with the adjustment of the amount of seedlings taken vertically.
The posture of the seedling held in the claws does not change and a stable planting posture can be obtained.

Second, since it is linked to the movement of the seedling platform 1 to adjust the amount of seedlings taken vertically, the operator's effort in adjusting the seedling presser bar can be saved.

[Brief explanation of drawings]

Fig. 1 is an overall side view of the walking rice transplanter, Fig. 2 is an enlarged side view of the seedling platform, Fig. 3 is a side view showing the support part of the seedling presser rod 5, Fig. 4 is also a rear view, Figure 5 is a diagram showing the relationship between the planting claw when the amount of vertical seedlings taken is small with a seedling presser rod that is not linked to the conventional adjustment of the amount of vertical seedlings taken, and Figure 6 is the same when planting when the amount of vertical seedlings taken is large. Figure 7 is a drawing showing the relationship with the planting claw when the amount of vertical seedling removal with the seedling presser rod is small when linked with the adjustment of the amount of vertical seedling removal. It is a drawing showing the relationship with planted nails when the amount of vertical removal is large. 1... Seedling mounting stand, 2... Seedling length adjustment screw, 3...
...planting nail, 4... feed shaft support, 5... seedling presser bar, 18... feed shaft, 21... hanging rod, 22... arm, 23... pin, 24... pivot part.

Claims (1)

[Scope of utility model registration request] In a configuration in which the position of the seedling platform 1 of the rice transplanter can be adjusted up and down in order to adjust the amount of seedlings taken vertically, the seedling platform 1
An arm 22 supported on the side of the seedling platform drive case 10, which does not move when adjusting the amount of vertical seedlings taken, is pivotally connected to the support part of the seedling presser bar 5, which is rotatably supported vertically by a hanging rod 21 on the side pivot part 24. A seedling presser for a rice transplanter, characterized in that the seedling presser rod 5 is configured to change its position in the vertical direction of the seedling platform 1 in conjunction with the vertical movement of the seedling platform 1 for vertically picking up the amount of seedlings. rod.