JPS6416Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a so-called riding-type rice transplanter in which a worker rides on a traveling vehicle body and performs rice transplanting work.
This relates to the body frame of the traveling vehicle body.

As disclosed in, for example, Japanese Patent Laid-Open No. 52-102108, the running body of a conventional riding-type rice transplanter has a transmission case extending forwardly at the front of a transmission case disposed approximately at the center of the running body. part frame,
Attach a rear frame extending rearward to the rear,
The engine was mounted on the upper surface of the front or rear frame, and the seedling planting device was attached to the rear or front frame. However, since the moment of heavy objects such as the engine and the seedling planting device act on the central transmission case at the same time, the transmission case not only has to be made of a fairly rigid and sturdy item, but also A cover must be provided on the upper surface of the transmission case, which increases the weight and prevents miniaturization.

In the present invention, a frame having a downward U-shaped cross section is disposed in the longitudinal direction of the vehicle body, and the transmission case is mounted approximately at the center of the lower surface of the frame, while the engine is mounted on the upper surface of one end of the frame, and the engine is mounted on the upper surface of the other end of the frame. By configuring it so that a seedling planting device is attached to the part, it is possible to reduce the size and weight.

The drawings of an embodiment in which the present invention is applied to a rear-planting type riding rice transplanter will be explained below. In the drawing, 1 is a running vehicle body supported by two front wheels 2 and two rear wheels 3; has a frame 4 with a downward U-shaped cross section extending from the front to the rear, and a transmission case 6 is attached to the lower surface of the approximately central portion of the frame 4 between the left and right side plates 5, 5 of the frame 4. On the other hand, a battery 7, an engine 8, and a steering gear box 10 with a steering handle 9 are attached to the front upper surface of the frame 4 in order from the front. Step stands 12 are provided on both left and right sides of the bonnet 11, and the step stand 1
On the outside of the bonnets 2 and 12 are spare seedling stands 13, 13, and on the front upper surface of the bonnet 11 is a seedling planting device 14, which will be described later.
A lamp 15 and a center marker 16 are respectively attached to display the remaining amount of seedlings on each seedling stand, and a control seat 17 is attached to the rear upper surface of the frame 4. It is configured so that it can rotate horizontally and face backwards.

The transmission case 6 receives power from the engine 8 as input, and two front wheels 2, 2 which are rotatably operated by the steering handle 9 are attached to the front part of the transmission case 6. Mission case 8
There are transmission cases 18, 1 extending rearward on both left and right sides of the
8, and the two rear wheels 3, 3 are attached to the rear ends of both transmission cases 18, 18, and the power is transmitted from the transmission case 6 to the two front wheels 2, 2 and the two rear wheels 3, 3. .

On the other hand, the seedling planting device 14 is located at the rear of the traveling vehicle body 1, and is connected via a pair of left and right lower rings 19, 19 whose base ends are pivotally connected to the rear end of the frame 4 of the traveling vehicle body 1, and one totsupunku 20. It is attached to the frame 4 so as to be able to move up and down, and is raised and lowered by a hydraulic cylinder 21 provided between the transmission case 6 or the frame and the top link 20.

The seedling planting device 14 includes a transmission case 22, planting cases 23, 23, 23 attached at appropriate intervals laterally from the transmission case 22, floats 24, 25, 24 attached to the lower surface of each planting case, and It consists of a seedling platform 26 whose upper end is inclined so as to approach the traveling vehicle body 1. At the rear end of each planting case 23, there is a vertically swinging type seedling planting mechanism 27, and on both sides of the upper part of the seedling platform 26, seedlings are placed. Base lights 28, 28 are respectively attached.

Further, a gear shift lever 29 for changing the traveling speed is disposed on the left side of the control seat 17, and an elevating lever 30 for raising and lowering the seedling planting device 14 is disposed on the right side. The levers 29 and 30 are located at a lower position than the bottom surface of the seat 17 so as not to interfere with the horizontal turning of the levers 17. On the outside of these levers 29 and 30, there is a fender cover 3 for the rear two wheels 3 and 3.
1 and 31, a step stand 3 extending in the direction of the seedling planting device 14 is provided on the outside of both fender covers 31 and 31.
2 and 32 are provided respectively.

Further, two connecting bodies 33 and 34 are mounted between the pair of left and right transmission cases 18 and 18, and the front connecting body 33 of both the connecting bodies 33 and 34 is connected to the left and right side plates 5 and 5 of the frame 4. A handle 37 with a bolt 36 is fastened to a bracket 35 fixed to the lower surface of the handle. In this case, the front connecting body 33 is fastened with bolts 39 to the seat plates 38 fixed to the inner surfaces of both transmission cases 18.
The rear connecting body 34 is fastened with bolts 41 to a member 40 that penetrates and is fixed to both transmission cases 18.

As described above, the frame 4 extending from the front part to the rear part of the traveling vehicle body 1 is formed to have a downward U-shaped cross section, and the frame 4 is placed between the left and right side plates 5, 5 on the lower surface of the approximately midway part of the frame 4. If the transmission case 6 is attached to the frame 4, and the engine 8 is attached to the front part of the frame 4, and the seedling planting device 14 is attached to the rear part of the frame 4, the heavy engine 8 and the seedling planting device 1 can be installed.
4 is entirely supported by the frame 4, and the supporting moment of the heavy engine 8 and seedling planting device 14 does not act on the mission case 6, so the mission case 6 needs to be constructed as sturdy as in the past. There is no frame 4 with a downward U-shaped cross section.
However, since it also serves as a cover for the upper surface of the mission case 6, there is no need to provide a cover for the mission case as in the conventional case.

In the above embodiment, the engine 8 was installed in front of the transmission case 6, and the seedling planting device 14 was installed in the rear. In the case of a front-planting type riding-type rice transplanter arranged in front of the frame 4, the seedling planting device may be mounted on the front part of the frame 4, and the engine may be mounted on the rear part.

Therefore, according to the present invention, the traveling body of a riding rice transplanter can be made significantly lighter and smaller than conventional ones.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a riding rice transplanter, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a side view of a riding rice transplanter.
The figure is a side view of the rear part of the frame, FIG. 4 is a plan view of FIG. 3, FIG. 5 is a cross-sectional view of FIG. 3, FIG. 6 is a cross-sectional view of FIG. FIG. 5 is an enlarged view of the main part, and FIG. 8 is an enlarged view of the main part of FIG. 1... Running vehicle body, 2... Front wheel, 3... Rear wheel, 4
... Frame, 8 ... Engine, 6 ... Mission case, 14 ... Seedling planting device, 19 ... Lower link, 20 ... Top link, 18 ... Transmission case.

Claims (1)

[Scope of utility model registration request] In a riding rice transplanter comprising a running vehicle body equipped with an engine, a transmission case, and a seedling transplanting device, the traveling vehicle body is constituted by a frame having a downward U-shaped cross section extending from the front part to the rear part, and the frame has an abbreviation of The transmission case is attached to the lower surface of the midway part between the left and right side plates of the frame, and the engine is attached to one end of the frame, and the seedling planting device is attached to the other end of the frame. body frame equipment.