JPS6019529Y2 - Two-wheel four-row walk-behind rice transplanter - Google Patents

Description

[Detailed description of the invention] The present invention is a two-wheeled, four-row, walking-type rice planting system that is designed to plant seedlings at three locations between a pair of left and right running wheels and at three locations outside the circle of the running wheels. Regarding the machine, its purpose is to sufficiently suppress rolling and pitching so that very good rice planting work can be performed with a stable machine attitude, and to stabilize the planting attitude. The point is to make it so.

In other words, the two-wheel four-row type walk-behind rice transplanter according to the present invention has a pair of left and right running wheels in a front center position with their rear edges located in front of the axle position, and detects changes in ground pressure to control the wheels. It also serves as a sensing device to automatically control the elevation of the
In addition to arranging the front float, rear floats are placed on both the left and right sides behind the wheels, and on the left and right sides of the front float, a ground leveling section is provided to level the area where the central two-line needle is planned to be planted, and the rear float is placed on the left and right sides of the front float. For planting the two outer rows on each side, a leveling section is provided to level the planned area, and for planting these two central rows and the two outer rows, the planned locations are set at equal intervals on a horizontal straight line behind the axle. It is characterized by

In other words, the three-point support provided by three floats placed at the center front of the pair of left and right running wheels, and at the left and right sides of the rear wheels sufficiently suppresses rolling and pitching while the aircraft is running, resulting in a highly stable aircraft. Since the rice planting work can be carried out from the same position, it is easy to operate the machine, and there is little variation in the depth of planting in the left and right directions, making it easier to achieve uniform planting performance.

Moreover, with such a two-wheeled four-row walk-behind rice transplanter, the operator must walk among the seedlings when planting in the two central rows, so unlike conventional rice transplanters, the muddy soil is still unstable immediately after the land has been leveled. If you plant the seedlings under such conditions and walk among the seedlings, the posture of the seedlings will be immediately disturbed. Because the planting positions are widely separated in the front and back directions, the seedlings with the two central needles can be planted on the leveled surface after the mud blown up from the rear end of the front float has stabilized. Planting can reduce external factors that disturb the posture of seedlings, and compared to conventional methods, planting seedlings has the advantage of making it easier to stabilize the posture.

In addition, since the front float is also used as a pressure-sensitive device for automatically controlling the elevation and descent of the wheels by detecting changes in ground pressure, the four points of the pair of left and right running wheels and the floats on both rear sides are Since it is possible to support most of the entire weight of the aircraft in a stable state, it is easy to reduce the ground pressure of the front float and use a pressure-sensitive float with superior sensitivity. There are advantages.

Embodiments of the present invention will be described below based on the drawings.

The drawing shows a two-wheeled, four-row type walk-behind rice transplanter, with a frame 3 extending rearward from a transmission case 2 directly connected to an engine 1 and attached to the rear end of the frame 3. Seedling planting consists of a movable seedling rack 4A, and a claw 4B, etc., for planting by sequentially taking out individual seedlings from the seedling rack 4A, and the above-mentioned mission case. A transmission case 6.2 has a pair of left and right running wheels 5, 5 mounted on the left and right sides of the transmission case 6.2.
6 are pivotally connected so as to be able to swing up and down around the input axis,
In addition, a front float 7 is provided in front of the left and right running wheels 5, 5 with its rear edge located in front of the axles 5a, 5b in the width direction of the fuselage, and Rear floats 8.8 are provided on both left and right sides of the aircraft, and between the rear floats 8, 8, there is a grounding float 9 for supporting the aircraft body, which has a length 1 smaller than the total length of the floats 8, 8. , with its front end located behind the front end of the both-side floats 8 8 , and its bottom surface 9 a is the bottom surface 8 a of the both-side floats 8 , 8 .

It is arranged above 8a.

The front float 7 is configured to also function as a pressure-sensitive device for automatically controlling the elevation and descent of the wheels 5 by sensing changes in ground pressure due to changes in the depth of the plowing bed. On both the left and right sides, the two central ribs are planned to be planted on the mud surface, which is roughly triangular in plan view. A and 7A are provided.

In addition, the rear both sides float 8. 8, the inner portion corresponding to the grounding float 9 is provided with ground leveling portions 8A, 8A each having a roughly triangular shape in plan view for leveling the mud surface where two outer rows of planting are planned.

The planting of seedlings on these two central rows is planned, and the planting of the two outer rows set behind the land leveling parts 8A, 8A, which are provided behind the wheels 5, 5 of the floats 8, 8 on both rear sides, is planned. The locations are set and arranged at equal intervals on a horizontal straight line.

[Brief explanation of the drawing]

The drawings show an embodiment of the two-wheeled, four-row walk-behind rice transplanter according to the present invention, with Fig. 1 being an overall side view, Fig. 2 being a plan view of the main parts, and Fig. 3 showing the ■-■ line arrow in Fig. 2. This is a perspective view. 5... Running wheel, 5a... Axle, 7.
...Front float, 7A...Grade leveling part, End...Both rear floats, 8A...Grade leveling part, 9...Grade leveling float.

Claims (1)

[Scope of utility model registration request] The wheels 5.5 are automatically raised and lowered by detecting changes in ground pressure with the rear edges of the pair of left and right running wheels 5. A front float 7, which also serves as a sensing device for control, is arranged, and rear floats 8, 8 are arranged on both left and right sides behind the wheel 5. Planting will be done at leveling areas 7A and 7A where the planned area is leveled.
At the same time, the rear float is provided with soil leveling sections 8A and 8A for leveling the planned areas for planting two rows on both sides, respectively.
A two-wheeled four-row walk-behind rice transplanter characterized in that the two central needles and the two outer rows are planted at equal intervals on a horizontal straight line behind the axles 5a, 5a.