JPS5854766B2 - Midmount Gataji Yotaueki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a mid-mount type vehicle that is configured to raise and lower a seedling planting device relative to the ground to change between a state in which seedlings can be planted and a state in which contact with the ground is avoided. Regarding the type rice transplanter.

Conventionally, in mid-mounted rice transplanters, the seedling planting device was raised and lowered relative to the machine frame, so the lifting range of the seedling planting device was limited depending on the position of the machine frame, and the seedling planting device could not be lifted sufficiently, and there was a risk that it would come into contact with the ground while driving over a ridge or on the road.

In addition, as a riding type rice transplanter, a configuration in which the seedling planting device is installed at the front or rear of the machine body is also considered, but compared to the mid-mount type, the overall length of the machine body is longer and the turning radius is larger, making it easier to move inside the field. There was a problem that the headland became wider and the overall work efficiency decreased.

In view of these circumstances, the present invention enables the seedling planting device to be raised and lowered over a wide range without being affected by the body frame, and further reduces the overall length of the machine to improve work efficiency. The purpose of the present invention is to provide a mid-mounted riding rice transplanter.

The mid-mounted riding rice transplanter of the present invention is equipped with a seedling planting device approximately in the longitudinal direction of the body frame, and wheels are provided at the front and rear ends via lifting devices, respectively, and the wheels are attached to the frame. The seedling planting device is configured to be able to be moved up and down relatively to change between a state in which the seedling planting device can be planted close to the ground and a state in which it avoids contact with the ground in which it is located considerably higher than the ground. A driver's seat is arranged on the frame near the top of the other wheel, with the inclined seedling stand of the seedling planting device placed above it, and the one wheel is directly attached to the traveling transmission case. The present invention is characterized in that an engine is mounted above the transmission case, and the engine is configured to be able to swing up and down integrally with the wheels.

In other words, since the seedling planting device is raised and lowered by raising and lowering the wheels, there is no need to change the relative position between the seedling planting device and the machine frame, and the range of elevation is not limited by the machine frame. , it became possible to lift the seedling planting device sufficiently.

Also, with this configuration, the relative arrangement (especially in the vertical direction) between the body frame and the seedling planting device can be set very freely.

Taking advantage of this freedom of arrangement, the front and rear wheels are positioned below the seedling stand and the driver's seat, making it possible to bring the front and rear wheels close together and further shorten the overall length of the aircraft. The turning radius has been shortened, improving overall work efficiency.

Furthermore, one wheel is attached directly to the traveling mission case, and the engine is mounted above the traveling mission case, so that the engine and the wheels are integrally configured to be vertically swingable. In contrast to the case where an engine and a traveling transmission are mounted on a vehicle, and power is transmitted from the traveling mission to the wheels via a power transmission shaft, a power transmission shaft is used to absorb the relative vertical movement between the aircraft frame and the wheels. There is no need to make it a telescopic structure, and furthermore, when an engine and a traveling transmission are mounted on the aircraft frame, a chain transmission case that can swing vertically is attached to the traveling transmission, and wheels are attached to the chain transmission case. In contrast, the chain transmission case is no longer necessary, and the wheel power transmission structure can be constructed simply.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

Figure 1 shows the entire mid-mounted riding rice transplanter.

A seedling stand 3 is placed in the recessed part 2 of the fuselage frame 1 which is approximately V-shaped when viewed from the side.
In order to mount the seedling planting device 7 in which the planting claw 4 and the float 5 for sliding contact with the rice field are connected to the planting mission case 6, the planting mission case 6 and the frame 1 are connected by a spring 8...
It is connected via...

With this structure, even if the machine frame 1 vibrates during seedling planting work, the shock absorbing action of the spring 8 and the holding action from the field surface of the float 5 ensure that the seedlings can be planted in a stable state. It is structured so that it can be used for additional work.

Parallel link mechanisms 9 and 9' that can swing up and down, and hydraulic cylinders 10 and 10' that forcibly swing the link mechanisms 9 and 9' are installed at the front and rear parts of the fuselage frame 1, respectively. 1, a second lifting device 11.12 is provided, and a front wheel portion 14 and a rear wheel portion 13 are connected to the tips of the lifting device 11.12, respectively.

With this configuration, the body frame 1 is raised and lowered with respect to the ground by the first and second lifting devices 11 and 12, and the float 5 is brought into sliding contact with the rice field in a ready-for-planting state, and the float 5
The planter 7 is configured to be able to switch to a ground contact avoidance state in which the planting device 7 including the planter 7 is placed at a position considerably higher than the ground.

Further, the rear wheel portion 13 has a large diameter wheel 16° 16 pivotally supported below the traveling mission case 15 which is connected to the first lifting device 11, and an engine 17 is mounted and fixed above it. A spare seedling stand 18 is provided above the engine 17 and is movable back and forth.

Then, the rear wheel portion 13 is moved to the seedling planting device so that the rear half of the seedling platform 3, which is inclined upwardly behind the seedling planting device 7, is located above the engine 17 and the large diameter wheels 16. It is arranged close to T, and the distance between the front and rear parts 13 and 14 is shortened, so that the length of the fuselage is shortened from front to back.

The front wheel portion 14 is connected to the lower end of the shaft supporting frame 19 connected to the second lifting device 12 via the axle 20, and the small diameter wheels 21,
21 is rotatably supported.

The step 22 is connected to the front end of the body frame 1 so as to be located above the front wheel portion 14.

Then, the driver's seat 23 is placed at the front end of the frame 1 so that the driver's seat 23 is located immediately behind this step 22.
The front end of the transmission case 6 is fixed, and the rear end thereof is positioned above the front half of the planting transmission case 6.

With this configuration, the seedling platform 3 is located directly behind the driver's seat 23, and the bacteria from the preliminary seedling platform 18 can be supplied to the seedling platform 3 from the driver's seat 23 even during seedling planting work. It is structured so that it can be used.

Further, the upper, front, and both sides of the driver's seat 23 and the step 22 are covered with an integrated cover 24 to protect the driver in the driver's seat 23 from the outside world, so that the driver can work comfortably even in rainy weather. At the same time, the rear of the cover unit 24 is open so that seedlings can be replenished from the rear.

[Brief explanation of drawings]

The drawings show an embodiment of a mid-mounted riding rice transplanter according to the present invention, with FIG. 1 being an overall side view and FIG. 2 being an overall plan view. 1... Airframe frame, 3... Seedling stand,
11, 12... Lifting device, 15... Traveling mission case, 16, 21... Car t
i 7... Engine, 7... Seedling planting device, 23... Driver seat.

Claims (1)

[Claims] 1 A seedling planting device 7 is installed approximately in the longitudinal direction of the fuselage frame 1.
, wheels 16 and 21 are provided at the front and rear ends via lifting devices 11 and 12, respectively, and the wheels 16 and 21 are raised and lowered relative to the frame 1 to move the seedling planting device 7 close to the ground. The seedling planting device 7 is arranged so that the seedlings can be placed on the slope above one of the wheels 16. The driver's seat 23 is arranged on the frame 1 near the top of the other wheel 21 along which the platform 3 is placed, and the one wheel 16 is directly attached to the traveling mission case 15, and the driver's seat 23 is mounted above the traveling mission case 15. A mid-mount type riding rice transplanter, characterized in that an engine 17 is mounted on the holder, and the engine 17 is configured to be able to swing up and down integrally with wheels 16.