JPS62193809U - - Google Patents

Description

[Brief explanation of drawings]

The drawings show an example of the elevating structure of the seedling planting device of the rice transplanter according to the present invention, FIG. 1 is a diagram showing the structure near the sensor float and the connection between the sensor float and the automatic elevating operation system, and FIG. FIG. 2 is an overall side view of the rice transplanter. 6... Seedling planting device, 9... Sensor float, 21
...Mud hardness detection section, _P2 ...Horizontal axis center.

Claims (1)

[Scope of utility model registration request] A sensor float 9 is pivotally supported around a horizontal axis P2 provided in the seedling planting device ₆ so as to be able to freely swing up and down, and the seedling planting device 6 is controlled by the displacement of the sensor float 9 based on the up and down swinging of the sensor float 9. The mud hardness detection unit 21 is configured to perform lifting control in the same direction as the mud hardness, and is equipped with a mud hardness detection unit 21 that is forced into the mud and swings backward as the mud hardness increases. Part 2
A rice transplanter seedling planting device elevating structure configured to make the elevating control sensitivity insensitive with the upward backward swinging of the rice transplanter 1 and sensitive with the downward return swinging of the rice transplanter, wherein the sensor The pivot point supporting the float 9 is configured to be freely changeable in position in the vertical direction, and the pivot point is changed in position downward as the mud hardness detection section 21 swings backward, so that the mud hardness detection section 21
A raising/lowering structure for a seedling planting device of a rice transplanter, which is configured to change the position of the pivot point upward as the pivot point returns to its original position.