JPS6238500Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a traveling unit device of a rice transplanter.

Land readjustment has recently been carried out, and in many cases the field ridges are constructed of concrete.

Therefore, when a rice transplanter is turned on the ridge at the corner of the field, there is usually a disadvantage that the rear corner of the float interferes with the ridge, making it difficult to turn. Therefore, in order to prevent the rear part of the float from hitting the concrete ridge of the field when the rice transplanter turns in the field, we decided to create a turning trajectory whose turning radius is the distance between the axle and a point with a certain turning margin from the front bumper. It is also characterized by being cut into the rear part of the float.

According to the present invention, the rice transplanter can be smoothly rotated without interfering with ridges and headlands.

The embodiments shown in the drawings will be described below.

In Figures 1 and 2, 1 includes a fuselage 6 to which the frame 4 of the engine 3 is connected to the front part of the transmission case 2 and the transmission case 5 to the rear thereof, and floats 7, 8, 8 on the lower surface of the fuselage 6. , shows a rice transplanter running in the direction of arrow A with a pair of left and right wheels 9, 9.

At the rear end of the transmission case 5 are seedling stands 10 and 4.
It is provided with a seedling planting device 12 consisting of a planting mechanism 11 and a pair of operating handles 13.

Further, both wheels 9, 9 are respectively attached to the tips of swing arms 14, 14 which are rotatably attached to the transmission case 2 by a boss 15 at the base, and the transmission case 2 is driven by a belt 16 from the engine 3.
The arm is rotated via a chain in the arm.

This proposal is based on the 3rd generation rice transplanter in the above-mentioned normal rice transplanter.
As specifically shown in the figure, the rear portions of the floats 8a, 8a are cut in accordance with the turning trajectory so that the rear portions of the floats 8, 8 do not hit the concrete ridges of the field when the rice transplanter turns the field. .

In other words, it has a cut shape with a turning radius R centered on the axles 17, 17'. This shape may be a straight line or a curve.

In FIG. 3, l indicates the turning margin dimension, which is the distance between the front bumper 18 and the intersection S of the two turning radii R'.

As described above, in this project, the float shape is formed in an external shape cut so that the rear part of the float is located on a turning trajectory whose turning radius is the distance connecting the axle and a point with a certain turning margin from the front bumper. Because of this structure, the turning radius can be kept small, and the rear part of the float can turn smoothly without interfering with ridges or headlands.

[Brief explanation of the drawing]

FIG. 1 is a front view of a rice transplanter equipped with the device of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is an explanatory diagram showing the device of the present invention. 8, 8...Float, 8a, 8a...Cut portion, 17, 17'...Axle, R...Turning radius.

Claims (1)

[Scope of utility model registration request] This rice transplanter has a float shape cut in such a way that the rear part of the float is located on a turning trajectory whose turning radius is the distance between the axle and a point with a certain turning margin from the front bumper. Traveling device.