JPH0132833Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a float in a rice transplanter that causes the planting part to slide following the rice field.

Conventionally, rice transplanters are equipped with floats that allow the planting part to glide along the rice field.This float consists of a center float located at the center of the left and right sides of the machine, and a muddy water channel spaced on both sides of the center float. Many of them consist of side floats placed at a distance.

However, in general, rice transplanters that plant 5 or more rows have a wide planting section, so the width of the muddy water channel formed between the center float or side floats can be widened, and the machine body Although it does not impede the flow of muddy water that occurs as it progresses,
With rice transplanters for row planting and below, unless the center float or side floats are narrowed, it is difficult to maintain a sufficient width for the muddy water channel between them.

However, if the width of the center float or side float is narrowed, the ability of the planting part to follow the rice field will decrease and its posture will become unstable. Since it is often used as a sensing float, narrowing the width of the center float will lead to a decrease in its sensing performance, which will have a negative impact on the planting performance of seedlings. There was also the problem that the side floats could not be made too narrow because they supported the left and right rolling of the planting area and leveled the ground from wheel marks.

In view of the above-mentioned actual situation, the present invention has been developed by integrally extending the grounding portions forming the muddy water channel recesses on the upper surface on both sides of the center float, without narrowing the grounding surface of the center float. The effective width of the muddy water channel formed between the side floats can be widened, the flow of muddy water that occurs as the aircraft advances is not obstructed, and the planting part follows the rice field well. , and its posture can be stabilized, and especially when the center float is used as a float to detect vertical movement of the planting section, it improves seedling planting performance without reducing its sensing performance. The present invention aims to provide a float in a rice transplanter that can be used in a rice transplanter.

To explain the structure of the present invention with reference to an embodiment shown in the drawing, the drawing shows an example of a four-row rice transplanter, in which 1 is a traveling part, 2 is a planting part, and In the section 2, a center float 3 is disposed at the left and right center of the body, and side floats 4, 4 are disposed on both sides of the float at an interval of muddy water channels 5, 5. The center float 3 and side floats 4 allow it to slide following the field. 6 is a seedling stand of the planting section 2, 7 is a planting mechanism, and 8 and 8 are the running section 1.
This is the aircraft propulsion wheel. Note that the center float 3 is also used as a sensing float that senses the vertical movement of the planting section 2.

The center float 3 has fin-shaped grounding parts 9, 9 extending integrally from the almost terminal end of the uphill part of the center float 3 to the grounding positions on both sides at the rear. Mud water channel recess 1 on the top surface
0 and 10 are formed. Therefore, the width of the muddy water channels 5, 5 formed between the center float 3 and the side floats 4, 4 is a, but the effective width of the muddy water channels 5, 5 is the width of the muddy water channel recesses 10, 10.
It becomes the addition of a′.

In the rice transplanter constructed as described above, the planting section 2 slides on the rice field by means of the center float 3 and side floats 4, 4, and moves up and down following the rice field. Then, the planting mechanism 7 plants the seedlings. As the planting section 2 advances, a flow of muddy water occurs around the center float 3 and side floats 4, 4, but the flow of muddy water between the center float 3 and side floats 4, 4 flows through the muddy water channel 5. , 5. The effective width of the muddy water flow paths 5, 5 is the sum of the width a' of the muddy water flow path recesses 10, 10 formed on the upper surface of the grounding portions 9, 9 to the distance a between them. Even if the distance between the floats 4 and 4 is narrow, the flow of muddy water is not obstructed, and the planting of seedlings is not hindered. In addition, the effective ground surface of the center float 3 is the width of the ground surface of the main body of the center float 3 plus the ground contact parts 9, 9, so even if the width of the center float 3 is narrowed, the effective ground surface against the field surface is is wide, therefore, the ability of the planting section 2 to follow the rice field can be improved, and the planting section 2 can be maintained in a stable posture. Furthermore, when the center float 3 is used as a float for detecting vertical motion of the planting section 2, a sufficient effective ground surface is secured, so there is no need to reduce the sensing performance.
It is possible to improve the planting performance of seedlings.

In the above embodiment, by forming the muddy water channel recesses 10, 10 on the upper surface of the grounding portions 9, 9 extending to both side grounding positions of the center float 3, the space between the opposing side floats 4, 4 is reduced. 2, the effective width of the muddy water channels 5, 5 formed in FIG. The upper surface of the ground-contacting part facing the ground may be formed into a depressed flat surface 4a, 4a, and in this case, the muddy water channels 5, 5
The effective width of the center float 3 is substantially expanded as in the previous embodiment, and the flow of muddy water in particular is slowed down, which prevents seedlings planted behind the grounding parts 9, 9 of the center float 3 from falling over due to running water. Floating seedling phenomenon can be prevented.

In short, in the present invention, a center float is provided at the left and right center portions of the aircraft body, and side floats are arranged on both sides of the center float at intervals of muddy water channels, and the center float has the following features:
Since the ground contact parts forming the muddy water channel recesses on the upper surface are integrally extended on both sides, the effective width of the muddy water channel formed between the center float and the side floats can be increased without narrowing the ground contact surface of the center float. It can be widened, does not obstruct the flow of muddy water that occurs as the aircraft advances, and also allows the planting part to follow the rice field well and stabilize its posture. When used as a float to detect vertical motion in the planting area, it has extremely useful practical effects, such as being able to improve seedling planting performance without reducing its sensing performance. .

[Brief explanation of drawings]

The drawings show an embodiment of the float in the rice transplanter according to the present invention, in which Fig. 1 is an overall plan view of the rice transplanter, Fig. 2 is a plan view of the main part, and Fig. 3 is a partial plan view of the rice transplanter. 4 is a top side view of the same, and FIG. 5 is a top end view of the same. In the figure, 1 is a running part, 2 is a planting part, 3 is a center float, 4, 4 are side floats, 5, 5 are muddy water channels, 7 is a planting mechanism, 8, 8 are aircraft propulsion wheels,
Reference numerals 9, 9 are ground contact parts, and 10, 10 are muddy water channel recesses.

Claims (1)

[Scope of utility model registration request] A center float is installed in the left and right center of the aircraft,
Side floats are disposed on both sides of the center float at intervals of a muddy water flow path, and the center float has a grounding portion integrally extending from both sides thereof to form a muddy water flow path recess on its upper surface. A float in a rice transplanter characterized by the following.