JPS6350963B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soil leveling rake device for a rice transplanter.

In other words, the planting device of the rice transplanter uses a float that slides and levels the field on its underside as a sensing body for field pressure, and automatically moves the planting device up and down depending on the degree of sensing. The structure is such that the planting depth can be maintained constant by adjusting the planting depth.

The sensitivity of the sensor is configured to be operable from the driver's seat so that it can be switched between hard and soft fields.

In addition, a soil leveling rake is attached in front of the float, and after leveling the field with the leveling rake, the float levels the ground, and then rice is planted there using a planting device.

Therefore, the above-mentioned soil leveling rake is configured to level the ground by relatively deep raking in hard fields, and to level it shallowly in soft fields.

In this way, a device is constructed that easily performs the leveling rake that can be switched and adjusted depending on whether the field is hard or soft, and the sensitivity of the sensing body can be adjusted with one operation, and both can be adjusted with a single operation. It is something to do with Mr.

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

First, we will discuss its configuration.

The planting device 1 includes a seedling tank 2, a planting rod 3, and a float 4 for leveling the ground, and is attached to a body 5 so as to be vertically adjustable.

Of the floats 4 described above, the center float 4a is configured to also serve as a sensing body 6, and its rear part is pivoted and a control valve 7 is provided in the front part between it and a fixed frame 8, and it can be moved up and down. Then, by switching the control valve 7, the planting device 1 can be automatically adjusted up and down relative to the body 5.

Reference numeral 9 indicates a link connecting the float 4a, which is the sensor 6, and the fixed frame 8.

The leveling rake 10 is pivotally attached to the center float 4a so that its angle can be changed, and is connected to the operating lever 11 so that it is close to upright in hard fields and has a large longitudinal inclination in soft fields. It consists of

This earth leveling rake 10 and the tank 9
are connected by a spring 12, and the operating lever 11
When the field rake 10 is operated toward the hard field side, the leveling rake 10 becomes nearly upright, the spring 12 is loosened, the link 9 is lowered, and the sensitivity of the sensing element 6 (float 4a) is switched to the side where it becomes less sensitive. When the operating lever 11 is operated toward a soft field, the slope of the ground leveling rake 10 increases in the front-rear direction, the spring 12 is pulled, the link 9 is pulled up, and the sensitivity becomes sharper. 13 is a return spring.

Next, its effect will be explained.

First, when the seedling tank 2 is loaded with seedlings and the machine body 5 moves forward, the leveling rake 10 advances while raking the field and breaking up large clods of soil, and then the float 4 levels the upper surface.

Subsequently, in the planting device 1, the planting rod 3 engages the seedlings in the seedling tank 2 in a divided manner to continuously perform planting work on the field.

Now, when performing rice transplanting work in a hard field, when the operating lever 11 is operated to the hard side, the soil leveling rake 10 is pulled by the return spring 13, and the soil leveling rake 10 becomes almost upright, and the spring 12 is also loosened and linked. expands, and the sensitivity of the sensor 6 becomes dull.

In this manner, when rice planting work is started, the relatively hard broken earth in the field is broken up and crushed by the leveling rake 10, and the soil is leveled by the float 4 before being planted. In this case, the sensing body 6 does not operate sensitively even if it senses an uneven surface in a hard field, so a stable signal can be transmitted to the control valve 7.

Next, when working in soft fields, when operating the operating lever 11 in the opposite direction to that described above, the leveling rake 10 is tilted forward, and the spring 12 is pulled to pull the link 9 upward. Therefore, the sensitivity of the sensing body 6 is made sensitive.

In this way, when the rice planting work is started after adjusting the switching, the leveling rake 10 does not have the effect of digging up a soft field, but performs a rake action according to the field situation, and the sensing body 6 has a slight buoyant force. However, by operating the control valve 7 appropriately, the vertical movement of the planting device 1 can be automatically controlled to ensure the optimum planting depth.

As described above, the present invention provides a rice transplanter that automatically adjusts the planting device up and down based on the sensing of field pressure by the sensing body, in which the sensitivity adjustment device of the sensing body and the leveling rake are connected to a series of rice transplanters. When adjusting the sensitivity to the insensitive side in a hard field using the operating device, the rake slopes steeply so that it scratches the field deeply, and conversely, when adjusting the sensitivity to the sensitive side in a light field, the rake tilts so that it scratches the field shallowly. Because they are connected to each other so that they have a gentle slope, the soil crushing effect is good in hard fields, making it possible to level the ground sufficiently, and the sensitivity of climbing up the planting device side is dull, so the planting device is not used unnecessarily. Stable planting is possible without vertical vibration, and in soft fields, the rake effect is reduced to prevent seedling planting from becoming too deep, and the control sensitivity that increases on the planting device side is made more sensitive for planting. It has the effect of preventing mud from being pushed over and allowing accurate planting.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, in which FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a side view of the main part thereof. 1... Planting device, 4... Float, 5... Aircraft, 6... Sensing body, 10... Land leveling rake, 11...
...Operation lever.

Claims (1)

[Claims] 1. In a rice transplanter that automatically adjusts the planting device up and down based on the sensing of field pressure by a sensing body, the sensitivity adjustment device of the sensing body and the leveling rake are controlled in a hard field by a series of operating devices, When adjusting the sensitivity to the insensitive side, the rake slopes steeply so that it scratches the field deeply, and conversely, when adjusting the sensitivity to the sensitive side in a soft field, the rake slopes gently so that it scratches the field shallowly. A soil leveling rake device in a rice transplanter.