JPS6131621Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a simple type of passenger vehicle that is configured to support the aircraft by a wheel disposed at one location in the longitudinal direction of the aircraft when viewed from the side, and a ground contact body disposed at the rear of the wheel. Regarding rice transplanters.

Conventionally, simple riding rice transplanters have been supported by one wheel and one float (for example, the Japanese Patent Laid-Open No. 52
-81221 Publication, Utility Model Publication No. 50-25) and Motorcycle 2
There was a device that supported the aircraft with a sled (Publication of Utility Model Publication No. 46-2424).

The former supports the aircraft with wheels and floats, and requires a relatively large ground contact area as a ground float, so there is the inconvenience that a large amount of mud is pushed by the floats, which may push down the already planted seedlings. It was hot.

In the latter case, the machine body is supported by wheels and a sled that is grounded on the tiller.
On the one hand, there was less mud pushing, but since the two wheels and two sleds touched the ground at four points, one end of the plow would float due to unevenness in the left and right direction of the plowing platform, resulting in poor straight-line performance.

The present invention solves the above-mentioned drawbacks and has the object of providing a simple riding rice transplanter that allows for good turning operation of the machine body.

The characteristic configuration of this invention to achieve the above purpose is as follows:
1, wherein the wheels are located at the center in the width direction of the aircraft body;
In addition, the grounding body is configured as a plow grounding sled located on both left and right sides in the width direction of the aircraft, and an imaginary triangular shape connecting the grounding points of the wheels and the sled is formed. Driver seat 3 in the center position
Further, the steering handle and the wheel are arranged close to each other so that the rotation axis of the handle and the grounding point of the wheel substantially coincide, and the driving device of the wheel is adapted to change the direction of the wheel. Accordingly, wheels and a driving device are attached to the fuselage so that they rotate together in the same direction, and a step for the driver is attached to the front fuselage to which the wheels and driving device are attached, and from this configuration, the following can be achieved. It has an effect.

In other words, since the machine was configured to be supported by wheels and a sled that touches the ground on the plowing platform, there was less mud pushing, and by the structure with one wheel and two sleds, the machine was configured to be supported by three points of ground contact. Unlike in the case of a four-point grounding system with two wheels and two sleds, there is no possibility that one wheel will float due to unevenness in the horizontal direction of the tiller and the straightness of the machine body will be impaired.

In addition, while the aircraft is stably supported by the three-point ground contact between the wheels and the sled, when supporting the aircraft with the wheels and the sled, the front wheel is used to support the aircraft at the rear. Because it is configured with two sleds, for example, when the aircraft is configured with two wheels in the front and one sled in the rear, the difference in running resistance between the wheels due to wheel slippage may cause the aircraft to meander and impair its ability to travel straight. Never.

And like this, 3 sleds with 1 front wheel and 2 rear wheels.
The aircraft is stably supported by point grounding, and since the rotational axis of the handle and the grounding point of the wheels are approximately aligned, for example, the rotational axis of the handle and the contact point of the wheels are There is no need to move the wheels laterally to turn the aircraft, which would be the case if there is a large deviation from the point, and the wheels can be easily steered.

Furthermore, when steering the wheels, the entire front fuselage including the wheel drive unit is rotated, so for example, compared to when only the wheels are moved, the wheels can be moved closer to the edge of the ridge. When the aircraft turns, there is no possibility that the power unit, which is located further forward than the wheels, will collide with the ridge.

When the powertrain rotates in this way, the center of gravity of the aircraft changes and the aircraft tends to fall inward. The driver's step is deflected to the outside of the aircraft as the aircraft turns, making it difficult to place the foot on the inside of the aircraft on the step when the aircraft is turning, so the driver naturally shifts to the outside of the aircraft. The weight of the driver is transferred to the legs, and the driver's weight acts to balance the powertrain, thereby preventing the aircraft from tipping over.

When driving straight ahead, you can not only use the steering wheel to operate the vehicle straight ahead, but also use your feet to push against the front body of the aircraft to maintain the straight forward state, making it easy to operate the vehicle straight ahead.

In addition, while the aircraft is stably supported at three points, the driver's seat is placed approximately in the center of the virtual triangle connecting the grounding points of the wheels and the sled. This has the advantage that the balance of the machine is unlikely to be lost even if workers with different weights are replaced.

Embodiments of the present invention will be described below with reference to the drawings.

The first one on the front side as a front fuselage, which is equipped with a prime mover E and has a steering handle 1 integrally extended to the rear.
A frame 2 is provided rotatably around a vertical axis P on a second frame 4 on the rear side as the fuselage after the driver's seat 3 is attached, one wheel 5 is provided on the first frame 2, and one wheel 5 is provided on the first frame 2; At the rear of the second frame 4, there is a seedling planting device 7 that takes out a predetermined amount of block seedlings from the lower part of a seedling platform 6 that is reciprocated in the lateral direction of the machine and plants them in the rice field, and a seedling planting device 7 that takes out a predetermined amount of block seedlings from the bottom of a seedling platform 6 that is reciprocated in the lateral direction of the machine and plants them in the rice field. In this state, rod-shaped ground sliding bodies 8, 8 are provided as a tiller grounding sled that slides and lands on the tiller, and furthermore, the seedling planting device 7 is connected to the second frame 4 via a parallel quadruple link mechanism 15. The seedling planting device 7 is provided with a soil leveling float 16 small enough to support the weight of the device 7 on the planting mud surface.
As shown in FIG. 2, the power from the driving device E is configured to be transmitted to the wheels 5 via a chain transmission mechanism inside the transmission case 9 and the transmission M, and the driving device E is Transmission is transmitted from the first transmission shaft 10 to the second transmission shaft 11 inside the second frame via the bevel gear mechanism 12 in the pivot portion of both frames 2 and 4, and from the second transmission shaft 11 the planting transmission M ₁ to the seedling stand 6 and the seedling planting device 7, and by rotating around the vertical axis P, the wheels 5 and the driving device E are integrated in the same direction. The riding rice transplanter is configured to continuously plant seedlings in the rice field while rotating and steering as it travels.

Transmission case 9 constituting the first frame 2
A U-shaped plate member 13 is connected to the support frames 2a, 2a for the rear part of the vehicle, with the wheels 5 sandwiched therebetween.
A step S is formed for the operator's feet.

The driver's seat 3 has wheels 5 and ground sliding bodies 8, 8.
It is located approximately at the center of a virtual triangle connecting the grounding point with the ground point.

[Brief explanation of the drawing]

The drawings show an embodiment of the riding rice transplanter according to the present invention, with FIG. 1 being an overall side view, FIG. 2 being a mechanism diagram showing a transmission system, and FIG. 3 being a partially omitted overall plan view. 1...Steering handle, 2...Front fuselage, 3...Driver seat, 5...Wheels, 8...Plowing platform sled, E...
...Power unit, S...step.

Claims (1)

[Scope of utility model registration request] In a riding rice transplanter configured to support the machine body by a wheel disposed at one location in the longitudinal direction of the machine body when viewed from the side and a grounding body disposed at the rear of the wheel, the wheel is placed at the center in the width direction of the machine body. In addition, the grounding bodies are constructed as plow grounding sleds 8, 8 located on both left and right sides in the width direction of the machine body, and the wheels 5 and the sled are arranged in the same direction. The driver's seat 3 is disposed approximately at the center of a virtual triangle connecting the grounding points of the steering wheel 1 and the wheels 8, and the steering handle 1 and the wheels 5 are placed close to each other so that the rotation axis of the steering wheel and the wheels are in contact with each other. The driving device E of the wheel 5 is aligned with the point of the wheel 5.
Wheels 5 and a prime mover E are attached to the fuselage so that they rotate together in the same direction when the direction of the wheel 5 is changed, and a step S for the driver is attached to the front body 2 to which the wheels 5 and the prime mover E are attached. A riding rice transplanter characterized by: