JPS6332577Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention consists of a uniaxial propulsion wheel placed at one location in the longitudinal direction when viewed from the side, at or near the center in the width direction of the fuselage, and a planting device placed at the rear of the uniaxial propulsion wheel. The present invention relates to a riding rice transplanter configured to support the body on the ground with a plurality of ground floats on the side and travel for planting.

This type of riding rice transplanter uses the grounding float originally installed in the planting device as one of the ground support members in the longitudinal direction of the machine.
Although the overall structure is simpler and lighter than conventional tractor-type riding rice transplanters,
Since the machine is supported on the ground only by a uniaxial propulsion wheel and a ground float that swings up and down as the depth of the plow changes, the machine lacks stability in the left and right directions, and The wobbling of the aircraft not only tends to cause variations in the planting depth in the left and right directions, but also causes the aircraft to tilt left and right when turning or changing direction, causing the driver to be thrown off or the aircraft toppling over. In addition, there were many problems in both the running and planting aspects, such as excessive settling of the planting device in weak fields, resulting in poor planting depth.

In view of the above, the present invention not only reliably prevents the aircraft from falling when turning or changing direction, but also prevents the aircraft from wobbling while traveling and from unreasonable sinking of the planting device. The purpose is to ensure reliable and good planting at a substantially constant planting depth, and in the above mentioned propulsion wheel 2
A pair of left and right auxiliary grounding devices having a plow grounding portion located above the grounding point of the propulsion wheel when viewed from the side of the aircraft are provided on the left and right sides of the ground float, and a pair of left and right auxiliary grounding tools are provided on both left and right lateral outer sides of the grounding float. is characterized in that it is provided with a sled body for sliding the tiller which can be moved up and down with respect to the grounding float.

That is, in the case of the present invention, when the aircraft tilts in the left-right direction beyond a certain level, the plowing ground contact portions of the auxiliary grounding tools provided outside the left and right sides of the propulsion wheels are brought into contact with the ground, and the entire auxiliary grounding tool is used to tilt the ground. The tensile support function can reliably prevent further tilting of the aircraft, so as mentioned above, it is best to plant the aircraft by supporting it on the ground using the uniaxial propulsion wheels and the ground float at the rear. Although it has a simple configuration for running, even in fields where the plowing surface is rough in both the left and right directions of the machine, it is possible to keep the left and right tilting within a safe range during machine turns and direction changes, thereby preventing the machine from tipping over. This can be reliably prevented and the planting run performed safely at all times. Furthermore, on the planting device side, rolling of the planting device caused by wobbling of the machine body is suppressed by appropriately controlling the sled bodies provided on the left and right outer sides of the ground float to be in sliding contact with the tiller. In addition, it is possible to maintain the ground pressure of the ground float, that is, the posture of the planting device relative to the mud, almost constant, regardless of field conditions such as the hardness or softness of the plowing surface or the depth of the plowing surface. Reliability of almost constant planting depth,
Successful planting was achieved.

Hereinafter, an embodiment of the present invention will be explained based on the drawings. In the drawing, 1 indicates one propulsion wheel 2 at one place in the front and back direction when viewed from the side, and one propulsion wheel 2 at the center in the width direction of the fuselage.
A transmission case 3A and a support frame 3B, which support the propulsion wheel 2 on both sides, are attached to a transmission case 5 linked to an engine 4. 6 is a traveling machine body in a forward tilted position. A seedling stand 7, four planting claws 8..., a planting transmission case 9 in which these drive mechanisms are installed, and the propulsion wheel 2.
This is a four-row planting device consisting of three ground floats 10 which have the function of supporting the aircraft on the ground and the function of leveling the planting surface in cooperation with the machine, and extend forward from the planting transmission case 9 of this planting device 6 . The extended pipe frame 22 is connected to the rear part of the transmission case 5 of the traveling machine main body 1 so as to be able to swing left and right about the vertical axis _P1 .

In addition, a plow ground contact portion 11a located above the ground contact point of the propulsion wheel 2 in a side view of the aircraft body is provided on the front end outer side of the transmission case 3A and the support frame 3B,
A pair of left and right sled-shaped auxiliary grounding tools 1 having 11a
1, 11 are pivotally mounted to be vertically swingable around a horizontal axis _P2 at the front end thereof, and the plow grounding portions 11a, 11a of the auxiliary grounding tools 11, 11 are connected to the propulsion wheel 2.
The mounting portion 11 of the auxiliary grounding tools 11, 11 is configured to have a similar or almost similar shape to the outer peripheral portion of the
b, 11b are formed with arc-shaped elongated holes 12, 12 around the swing axis _P2 , and the corresponding elongated holes are formed on the side of the transmission case 3A and support frame 3B for supporting the wheels. Bolts 13, 13 protrude outward through bolts 12, 12, and nuts 14, 14 are screwed onto the protruding ends of the bolts, thereby attaching the auxiliary grounding devices 11, 11 to the propulsion wheels 2. The height can be adjusted and fixed within the range of the elongated holes 12, 12.

Further, the front part of the traveling machine main body 1 is equipped with a steering wheel 15 for use in a walking state, and the pipe frame 22 on the side of the planting device 6 is equipped with a steering wheel 16 and a driver's seat 17 in a riding state, as well as
A pair of left and right plow sliding contact sled bodies 18, 18 that can swing up and down with respect to the ground float 10 are provided on both left and right lateral outer sides of the ground float 10, and the front ends of the sled bodies 18, 18 are provided. A drive cylinder 20 is interposed between the common swing fulcrum member 19 connecting the parts and the pipe frame 22.

The drive cylinder 20 is in a state where it is expanded and contracted based on human operation, and the ground float 10...
It is configured so that it can be switched to a state in which it is extended and contracted based on the vertical swinging displacement of one of them.

When the aircraft turns, by manually lowering the sled bodies 18, 18 to a state where the grounding floats 10 float above the ground, it is possible to avoid mud being pushed out on the sides of the grounding floats 10. In addition, in the case of a soft and deep field, by switching to the automatic control state, it is possible to not only suppress rolling of the planting device 6 , but also reduce the rolling of the grounding float 10. It is possible to stabilize the planting depth by keeping the ground pressure almost constant.

In addition, the auxiliary earthing tools 11, 11 and the sled body 18,
18 is provided in a state where it straddles 2 rows and straddles 4 rows.

In addition, when transporting this type of riding rice transplanter while walking, the ground floats 10 are raised above the ground on the ground contact portions of the sled bodies 18, 18 to propel the rice transplanter. Auxiliary grounding wheels 21, 2 that can support the aircraft on the ground with the wheels 2
1 is configured to be installed.

[Brief explanation of drawings]

The drawings show an embodiment of the riding rice transplanter according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view, and Fig. 3 is a top view.
The figure is a front view of the main parts. 2... Propulsion wheel, 6 ... Planting device, 10...
Grounding float, 11... Auxiliary grounding device, 11a...
Plowing plate grounding part, 18...Sled body for sliding contact with the plowing plate.

Claims (1)

[Claims for Utility Model Registration] A uniaxial propulsion wheel 2 disposed at or near the center in the width direction of the fuselage at one location in the front-rear direction when viewed from the side, and the side of the planting device 6 disposed at the rear of the propulsion wheel 2 In a riding rice transplanter configured to support the machine body on the ground and travel with planting, the ground contact of the propulsion wheel 2 is provided outwardly on both left and right sides of the propulsion wheel 2 when viewed from the side of the machine body. A pair of left and right auxiliary earthing devices 11, 11 having plow grounding portions 11a, 11a located above the point are provided, and a pair of auxiliary earthing devices 11, 11 are provided on both left and right lateral outer portions of the earthing float 10. A riding rice transplanter equipped with sled bodies 18, 18 for sliding contact with the tiller plate. Utility model registration in which the planting device 6 is for four-row planting, and the auxiliary grounding devices 11, 11 and the plow slide contact sled bodies 18, 18 are provided in a state spanning two rows and four rows. A riding rice transplanter according to claim 1.