JPS60114109A - Rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a LIE transplanter, and more specifically, a rice transplanting device is attached to a traveling vehicle body via an elevating mechanism, and ground pressure fluctuations of a soil leveling float attached to the rice transplanting device are This relates to a rice transplanter configured to maintain a predetermined ground pressure by operating an elevating mechanism. Conventionally, in this type of rice transplanter, the sensitivity of the elevating mechanism is affected by the hardness or softness of the top soil. In other words, a floating sensitivity adjustment device is provided to make it easier or harder for the ground leveling float to float. However, with this levitation sensitivity adjustment device,
For example, if the force used to press down the front part of the soil leveling float is increased, the whole leveling float will go further below the surface of the topsoil, resulting in a deeper depth. The disadvantage of weakening this was that it would result in shallow planting.

In addition, even if the structure is such that the orientation angle of the soil leveling float can be changed as a separate floating sensitivity adjustment device, when the front part of the soil leveling float is raised to reduce the ground contact area when the topsoil is hard, the soil will be planted deeply, and conversely, it will become soft. When the topsoil is thick, lowering the front part of the soil leveling float to increase the ground contact area has the disadvantage that it results in shallow planting.

As described above, in either case, when a floating sensitivity adjustment device for the soil leveling float is provided to adjust the sensitivity to an appropriate level, there is a drawback that the depth of seedling planting fluctuates.

Therefore, this invention aims to eliminate the above-mentioned drawbacks and has taken the following technical measures.

That is, the present invention includes a lifting mechanism αυ in the traveling vehicle body (1).
Attach the rice transplanting device (A) to the rice transplanting device (2) through the rice transplanter (2), and install the planting depth adjustment mechanism whose rear side can be adjusted up and down so that the seedling planting depth can be adjusted. A soil leveling float (C) is provided whose front part can be moved up and down freely by changing the ground pressure, and the lifting operation mechanism α is operated by the lifting and lowering movement of the front part of this earth leveling float (G). In a rice transplanter configured so that the soil leveling float (A) is maintained within a predetermined appropriate leveling pressure range, a floating sensitivity adjustment device (A) is provided to adjust the floating blade of the soil leveling float (C).
), and the floating sensitivity adjustment device (Δ) and OiJ planting depth adjustment mechanism (c) are changed to the deep planting side when making the floating sensitivity sensitive, and conversely changed to the shallow planting side when making the floating sensitivity insensitive. The rice transplanter is constructed in such a way that the rice transplanters are interlocked with each other.

With the above configuration, this invention eliminates fluctuations in seedling planting depth even if the rice transplanting device's vertical sensitivity is adjusted depending on the hardness or softness of the topsoil, and the seedlings can always be maintained at the appropriate depth. be effective.

One embodiment of this invention will be described in detail based on the drawings (1
) is a running vehicle body, which is a passenger type in the illustrated example, and has an engine (6) covered by a bonnet (5) on the front upper part of a machine frame (4) having front wheels (2 wheels) and rear wheels (3). A handle (7) is installed at the rear of the bonnet (5), and a control seat (8) is installed at the top of the bonnet (5). (9) is installed on the mission case, and OQ is installed on both left and right sides of the mission case (9). 0υ is a joint frame that connects the left and right chain cases θQ・00, and a support column Q is erected on this to support the control seat rtY; (8). (1
3. α 弔 are operation panels installed on both the left and right sides of the pilot seat (8).

ao is a lifting/lowering degree operating mechanism, which includes a link mechanism αQ and a hydraulic device α.
The link mechanism 0Q has a base connected to the support column (2).
Upper link (16a) and lower link (161) pivotally connected to
) and a vertical link (16c) that pivots both links at the rear.
It is made up of. The hydraulic system Q7) is made up of a through hydraulic tank al19, a hydraulic pump 00, a hydraulic switching pulp wire, and a hydraulic cylinder device 0υ shown in FIG.

Then, the cylinder (21a) of the hydraulic cylinder device Qυ
) is pivotally connected to the transmission case (9), and the piston (21b) is pivotally connected to the upper link (16a).

(2) is a rice transplanting device, which includes a seedling tank (c) attached to a planting transmission case (a) so as to be able to move back and forth from side to side, and this seedling tank (
Seedling planting rods (C) are installed to divide and plant seedlings one by one from C), and at the bottom, leveling floats (C), (C), and (C) are installed at the center and on both left and right sides. It is equipped with
In this rice transplanting device, the left and right center portions of the planting transmission case frame are rotatably attached to the vertical link (160) of the link mechanism α. In the illustrated example, a counter transmission (c) is provided on the vertical link (160), a support shaft is made to protrude from this, and the counter mission (c) is attached to the support shaft.

(Above ground leveling flow)・Pin Cd1)
-01) and several cases are pivotably mounted to the dogleg-shaped frame 02 and the placket via ).

Then, attach an operating lever (to) to any one of the V-shaped frames (7), and this lever (b) connects to a hole with a retaining notch at the top and bottom attached to the planting transmission case (2). This operation lever (b) is inserted through the hole in the panel (to) that has a
The angles of the F-shaped frames (1), (G), and the like can be adjusted in direction.

In addition, the front part of the soil leveling float (A) in the center is connected to the rotating arm (B) whose bending part is pivotally connected to the planting transmission case (A) with a pin (to) via an expansion/contraction link (C). are connected,
The upper link rod (38a) of the expansion/contraction link (c) is pivotally attached to the rotating arm (b) at its upper and lower middle.

0 is a rod that connects the above-mentioned V-shaped frame (G) and the rotating arm (B).

In addition, the front part of the other side soil leveling float (a) and ni) is attached to the planting transmission case (2) via an expansion/contraction link θ0/wheel so that it can move freely up and down.

The hydraulic switching pulp (a) of the hydraulic device θη is interposed between the soil leveling float body) and the rotating arm (b), so that the soil leveling flow 1-(a) is at a predetermined height appropriate for 61 planting. When the piston (21b) is pushed up to a higher level, the piston (21b) is switched to the protruding side;
) can be switched to retract.

1) The sensitivity adjustment ffi lever (4]), which is inserted into the guide groove (13Z↓) with a notch drilled in the operation panel 03 (No. 11) and is rotatably adjustable, is located above the expansion/contraction link (c). The upper part of the link rod (38α) is interlocked with the wire (6) through the spring 03, and when rotating this lever 0) in the direction of arrow (a), the tension of the spring 03 is increased to lower the leveling lever. When u-1-(a) is pushed down strongly, its levitation resistance is set to human, and conversely, when rotating in the opposite direction of arrow (a), the levitation resistance is reduced.

That is, the sensitivity adjustment lever (4) and wire 0 are connected.

The ring (n) and the expansion/contraction link (c) constitute a floating sensitivity adjustment device (A).

Further, the sensitivity adjustment lever 0]) and the doglegged frame 02 are connected by a wire wire, and the end of the outer wire (44a) is received by the doglegged frame (1), Furthermore, a spring (L4) is interposed between this V-shaped frame ■ and the V-shaped frame 02. When the lever (4υ) is rotated in the direction of arrow (A), the wire (B) is pulled. Move the land leveling float (b) in the direction of the arrow (b) in the doglegged frame 0.
The rear part of the tree is lowered downward so that it can be planted shallowly.

In other words, for planting, the depth adjustment mechanism (G) is a mechanism in which the leveling float (C) is attached between the F-shaped frame ■ and the bracket (G), and this mechanism () 3) is the sensitivity adjustment leno<
-01).

To explain the operation of the upper side, seedlings are placed and stored in the seedling tank (c), and the engine (6) transmits power to each part of the vehicle body (1).
), when the rice transplanting device (A) is towed with each of its soil leveling floats (C), @, and (A) in contact with the topsoil surface of the paddy field, the seedling planting rod (C) will reciprocate from side to side. Divide the seedlings into individual plants from the seedling tank (foundation) and place them on a land leveling float (
Plant the seedlings into the topsoil leveled in steps 1), (a), and (5).

And when adjusting the depth of seedling planting, use the operating lever
Therefore, the angle of the V-shaped frame can be adjusted, and the rear portions of the leveling floats (C), C'/), and (A) can be adjusted up and down via the V-shaped frame O.

Seedling planting is currently underway under the conditions described above.
When the surface is deep and the ground pressure of the soil leveling float (C) increases, the front part of the soil leveling float (C) is pushed up against the tension of the spring, causing the hydraulic switching valve (1) to move towards the piston (21b). ) is switched to the protruding side, and the lifting/lowering operation mechanism aυ is operated to move the rice transplanting device (a) upward. When the ground pressure becomes appropriate, it returns to the neutral state. Conversely, when the plowing platform becomes shallower and the ground pressure of the soil leveling float (c) decreases, the hydraulic switching valve (1) is switched to the side where the piston (21b) retracts, and the rice transplanting device (c) is lowered.

In this way, the rice transplanting device (c) is automatically controlled to an appropriate height and towed.

However, despite the automatic adjustment control, when the topsoil is hard, the front part of the soil leveling float (E) tends to spin up and down and moves up and down frequently. ) will cause vertical hunting.

In such a case, the pilot should adjust the sensitivity by adjusting the sensitivity to 1/bar.
It is best to rotate it in the direction of the arrow (A) to engage the notch.Then, the spring 03 is pulled through the Y6--0, and the ground leveling float CQ is strongly pushed down through the expansion/contraction link (to). It is possible to stably tow the rice transplanting device without causing frequent vertical movements of the soil leveling float (c).

In this case, the soil leveling float (A) is hit hard, so the seedlings are planted at a deeper depth, but the wire (■) in the dogleg-shaped frame 0 is rotated in the direction of the arrow (B). If you are trying to plant deeper, you will have to make corrections to shallower planting.

In addition, contrary to the above case, when the topsoil becomes soft, the front part of the grading float (C) tends to sink.
(c) The upward movement is slow and there is a lot of mud pushing.In such cases, you can weaken the tension of the spring (/4■) by operating the sensitivity adjustment lever θυ in the opposite direction of the arrow (a). At this time, contrary to the above, the seedlings are planted at a shallow depth, but at the same time, the wire (money) is relaxed and the spring -〇 causes the rear of the float (c) to move upward, causing the seedlings to be planted at a shallow depth. It is corrected by planting.・In this way, the hardness of the topsoil・
When adjusting the sensitivity of the lifting and lowering operation of the U3 planting device (a) according to the field, it is possible to eliminate the unexpected dusting that occurs when planting seedlings at different depths as in conventional devices.

In addition, to explain the configuration of another example with reference to FIG. 6, in this example, an elongated hole ( L4G) and pin 07) are connected in a floating state, and m outer end members θ of the wire θ are provided on the rotating arm (37a), and the sensitivity adjustment lever 0] is moved as shown by the arrow (A).
When rotating in the direction, the front part of the rotating arm (37a) is moved downward on the outer side to pull the inner side of the wire GEI, and the ground leveling flow! - The front part of (c) is lowered to reduce its direction angle and increase the leveling area, and the sensitivity adjustment lever (
4I) in the direction of the arrow (A), it is conversely configured to make it easier to move the ground leveling lever up (C). In other words, the sensitivity is adjusted to the sensitive side, but at this time, the leveling float (G) becomes lower in the front and floats in the rear. In the example, the rear bracket 0 east of the ground leveling float (A) is simply connected to the F-shaped rod 00 with the arm (32a,), the outer end of the wire (goods) is locked to the F-shaped rod ■, and the inner Since the arm (32a) is connected to hang from the side, when attempting to plant shallowly as described above, the soil leveling float (E) is hoisted upward with a wire sail to compensate for deep planting.

Conversely, in this embodiment, the sensitivity adjustment lever (4]) is rotated in the direction opposite to the arrow (A), and the front part of the rotary arm (37a) is rotated in the - direction to raise the leveling float (H). ) to reduce the ground contact area and make the sensitivity less sensitive.
Although the plant tries to plant deeply, at this time the wire (B) is relaxed, so the arm (32a) rotates downward to correct for shallow planting.

In the drawings, decoy is a hydraulic control lever for manually switching the hydraulic switching pulp (a), and 09) is a clutch lever for planting seedlings.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a partially simplified plan view, and Fig. 3 is a partially simplified plan view.
4 is a side view of the main part, FIG. 5 is a slope view of the main part, and FIG. 6 is a side view of the main part of another example. Symbols in the figure: (1) is the running vehicle body, aQ is the lifting mechanism, (
C) is a rice transplanting device, (C) is a soil leveling float, and (A) is a float.
- Sensitivity adjustment device, (I3) indicates the depth adjustment mechanism. Patent applicant name: Iseki Agricultural Machinery Co., Ltd. Representative: Masataka Iseki

Claims (1)

[Claims] A rice-transplanting device holder is attached to the traveling vehicle body (1) via an elevating mechanism 00, and the rear side of the rice-transplanting device (A) can be adjusted up and down to adjust the depth so that the seedling planting depth can be adjusted. mechanism(
A soil leveling float (C) is provided which is attached to the surface of the earth and whose front part can be freely moved up and down by changing the ground pressure, and by the vertical movement of the front part of this earth leveling float (C), the lifting operation mechanism Q0 is made to operate. The soil leveling float (c) is configured to be maintained within a predetermined appropriate leveling pressure range1]]
The planting machine is provided with a flotation sensitivity adjustment device (A) that adjusts the flotation blade of the ground leveling flow l-(c), and this flotation sensitivity adjustment device (A) and the planting bed height adjustment mechanism (T3) are This rice transplanter is configured to be mutually interlocked so that when the sensitivity is to be made sensitive, it is changed to the deep planting side, and when the sensitivity is to be made insensitive, it is changed to the shallow planting side.