JPS6360967B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a float for a rice transplanter, which is equipped with a float divided into front and rear parts.

A rice transplanter is known in which a float divided into front and rear parts is disposed on the lower side of a rice transplanter main body that has a planting section at the rear of the machine. In addition, the float of a rice transplanter usually has its rear end pivoted to the rice transplanter body so that it can rotate back and forth, and its front part attached to the rice transplanter body so that it can move up and down. It moves up and down to change the relative distance from the rice transplanter itself, adjusting the planting depth of the seedlings. In the split float, if, for example, only the rear pivot of the rear float is moved up and down to adjust the planting depth, the support height of the rice transplanter main body relative to the front float will change, causing the front-back balance to collapse. Undesirable.

Therefore, in the present invention, the rear ends of the front and rear floats are pivoted to the rice transplanter main body so as to be rotatable back and forth, and the tip sides are attached to the rice transplanter main body so as to be movable up and down.
By moving the rear pivot of the rear float up and down to adjust the planting depth, and by connecting the rear pivot of the front float to move up and down in conjunction with this planting depth adjustment operation. , a rice transplanter in which when the rear pivot of the rear float is moved up and down to adjust the planting depth, the front float is also moved up and down at the same time, allowing stable planting work without changing the front-to-back balance of the machine. It provides a float.

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral 1 indicates a walking-type rice transplanter main body, an engine 2 is mounted on the front part of this main body 1, a planting part 3 is provided in the rear part, and a transmission case 5 is provided on both left and right sides of the middle part. A running wheel 4 is mounted so as to be movable up and down, and a steering handle 6 is mounted on the rear side of the planting section 3.
The planting section 3 has a structure that is inclined toward the steering handle 6,
A seedling tank 7 that reciprocates a predetermined distance in the left and right direction;
It is equipped with a planting body 8 for taking out the seedlings stored in the seedling tank 7 one by one from the lower end of the seedling tank 7 and planting them on the rice field, and is operated by receiving power from the engine 2.

A front float 9 and a rear float 10 are provided on the lower side of the rice transplanter main body 1. Rear float 1
0 has a bracket 11 erected on its rear,
The operating arm 13 is pivotally supported at the distal end of the operating arm 13 whose base end is fixed to a rotating shaft 12 which is supported by the rice transplanter main body 1 so as to be rotatable back and forth. The planting depth of the seedlings to be planted by the planting body 8 can be changed by moving up and down using the provided planting depth adjustment lever 14. Further, the front part of the rear float 10 is connected to the rice transplanter main body 1 by a link body 15 so as to be movable up and down. front float 9
The bracket 16 erected at the rear is attached to the rice transplanter main body 1 via a link arm 17 so as to be movable up and down, and the front part is attached via a link body 18 so as to be movable up and down. At the same time, a sensing mechanism (not shown) is provided at the position of the link body 18 to sense that the float 9 moves up and down during the planting operation and to move the traveling wheels 4 up and down.

The operating arm 13 of the rear float 10 and the link arm 17 of the front float 9 are connected by a link rod 19, and the rear float 10 is moved up and down by the adjustment lever 14 to adjust the planting depth. When the front float 9 is adjusted, the front float 9 is also moved up and down at the same time.

In the rice transplanter having such a configuration, during planting work, the front and rear floats 9, 10 are brought into contact with the rice field surface, and the running wheels 4 are driven so as to be in contact with the hard platen to slide on the rice field surface and follow a predetermined trajectory in the vertical direction. The seedlings housed in the seedling tank 7 are planted one by one on the rice field by the planting body 8 which operates while moving. When it is necessary to change the planting depth of seedlings due to the condition of the field, the size of the seedlings, etc., the control lever 14 is moved up and down to rotate the rotation shaft 12, and the rear float 10 is moved via the operating arm 13.
is moved up and down to change the relative distance between the rear float 10 and the rice transplanter main body 1, that is, the planting section 3, and adjust the planting depth of the seedlings to be planted by the planting body 8. When the rear float 10 is moved up and down by this adjustment, the front float 9 is also moved up and down at the same time via the link rod 19, so the front and rear support balance of both floats 9 and 10 with respect to the rice transplanter main body 1 does not change. ,
Stable planting work is carried out.

As described above, according to the float of the rice transplanter of the present invention, the rear float 10 is controlled by the planting depth adjustment lever 14.
When the rice transplanter body 1 (planting part 3) is moved up and down to adjust the planting depth by changing the relative distance to the rice transplanter body 1 (planting section 3), the front float 9 is also linked via the link rod 19 and moves up and down at the same time. The supporting relationship between the front and rear floats 9, 10 with respect to the rice transplanter main body 1 does not change at all times, so stable planting work can be carried out.

[Brief explanation of drawings]

Figure 1 is a side view showing one embodiment of the present invention, Figure 2 is a side view showing one embodiment of the present invention;
The figure is a plan view. 1... Rice transplanter main body, 3... Planting section, 4... Running wheels, 8... Planting body, 9... Front float, 10...
... Rear float, 12 ... Rotating shaft, 13 ... Operating arm, 14 ... Planting depth adjustment lever, 17 ... Link arm, 19 ... Link rod.

Claims (1)

[Claims] 1. In a rice transplanter that has a float divided into front and rear parts on the underside of the rice transplanter main body that has a planting section at the rear of the machine, both the front and rear floats have their respective rear ends that can be rotated back and forth relative to the rice transplanter main body. It is attached to the rice transplanter main body so that the tip side can be moved up and down, and the planting depth is adjusted by moving the rear pivot part of the rear float up and down, and it is linked with this planting depth adjustment operation. A float for a rice transplanter, characterized in that the rear pivot of the front float is configured to move up and down.