JPH0824457B2 - Rice transplanter operation part structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rear part of a traveling machine body, which is connected to a seedling planting device such that it can be moved up and down, and a driving seat of the traveling machine body and seedlings of the seedling planting device. A preliminary seedling accommodation device is widely arranged along the lateral direction of the seedling mounting table between the mounting table and the seedling planting device for adjusting the seedling picking amount or the planting depth. The present invention relates to the operation portion structure of a rice transplanter in which an adjusting operation tool is arranged on the lower surface side of a seedling placing table in the seedling planting device.

[Conventional technology]

In the above-mentioned operation portion structure in the related art, as the one that can operate the operation lever without getting off the aircraft, as disclosed in, for example, JP-A-61-216605,
There is a structure in which the operation lever is largely projected forward from the seedling planting device at a position outside the rear wheel of the traveling machine body.

[Problems to be Solved by the Invention]

In the above-mentioned conventional structure, in the case where the seedling placing portion of the preliminary seedling accommodation device arranged at the rear of the machine body is formed in the upper and lower stages,
When raising the seedling planting device when replenishing seedlings or while traveling on the road, lower the operating lever in advance in order to prevent the operating lever from coming into contact with the lower part of the spare seedling container and damaging it. It must be installed in the position. As a result, in particular, the trouble that mud scattered during the work adheres to the lever is likely to occur.

Further, when the operation lever is rocked up and down, the position of the operation lever is far, and it is difficult to secure a sufficient up and down operation amount in order to avoid contact with the preliminary seedling storage device. It requires a considerable amount of skill to perform various adjustment operations with high accuracy.

An object of the present invention is to devise a mounting position of an operation tool with respect to a seedling planting device to facilitate seedling replenishment from a preliminary seedling containing device to a seedling planting device and a lever operation from a driving section, and to operate the lever. This is to facilitate adjustment of the amount of seedlings to be taken and the depth of planting with precision.

[Means for solving the problem]

The technical means of the present invention taken to achieve the above-mentioned object is to connect the seedling planting device to the rear part of the traveling machine body so that the raising and lowering operation can be freely performed, and the driving seat of the traveling machine body and the seedling platform of the seedling planting device. Between the and, by disposing a preliminary seedling accommodation device widely along the lateral direction of the seedling mounting table, for adjusting the seedling taking amount, or for adjusting the planting depth for the seedling planting device. The operation tool, in the operation unit structure of the rice transplanter arranged on the lower surface side of the seedling placing table in the seedling planting apparatus, the tip end portion of the adjusting operation tool is located near the front end portion of the seedling placing table, Further, the adjustment operation tool is attached in a state where the tip end portion of the adjustment operation tool is located at a higher level than the upper end of the preliminary seedling accommodation device in the raised state of the seedling planting device, and the adjustment operation is performed. The tool is around the pivot axis provided in the vertical middle part of the seedling table. Dynamic operably mounted, and is to regulate the swinging operation direction of its adjustment amount is set in the lateral direction along the back side of the seedling placing stand seedling mounting surface.

[Action]

The effect of taking the above technical means is as follows.

Operate the operation tool even if the operation tool is positioned at a higher level than before during work, and if the rear end of the preliminary seedling accommodation device and the front end of the seedling mounting table are as close as possible during seedling supply. In this case, raise the seedling planting device and position the operation tool at a position higher than the spare seedling storage device, and at a position as close as possible to the driver's seat side. It is possible to reach the operating tool through the upper part as easily as possible.

In addition, since the adjusting operation direction of the operation tool is set laterally along the lower surface side of the seedling placing table, the operation range is the difference in the relative height between the lifting height of the seedling planting device and the position of the preliminary seedling accommodating device. Unlike the vertical direction, which is limited by the horizontal direction, it is possible to effectively use the width of the seedling stand, which is widely configured, in the horizontal direction to set a large adjustment operation range in the horizontal direction.

Moreover, since the operation tool is extended upwards from the intermediate portion in the vertical direction of the seedling placing table, for example, compared with the case where it is extended upwards from the lower end portion in the vertical direction of the seedling placing table. The length of the operation tool itself is not too long, and the ratio of the swing angle to the operation amount of the tip of the operation tool does not become extremely small. In other words, the operation amount of the operation tool does not have to be extremely large in order to obtain the swing angle required to operate the target operation device, and it is easy to have a compact structure.

〔The invention's effect〕

Therefore, it is possible to operate the operation lever without getting off the aircraft and to bring the seedling stand close to the preliminary seedling storage device to facilitate seedling replenishment, while preventing the operation lever from adhering to the mud and operating the lever. It has become possible to make it easier.

In addition, since the adjustment operation direction of the adjustment operation tool is set to the horizontal width direction along the lower surface side of the seedling mounting table, the posture of the mounted seedlings is disturbed and the time loss is increased. The adjustment operation range can be set large without requiring any operation. Therefore, there is an advantage that a precise adjustment operation can be easily performed by effectively utilizing the wide adjustment operation range.

Moreover, since the operation tool is extended upward from the vertical middle portion of the seedling mounting table, for example, compared with the case where it is extended upward from the vertical lower end of the seedling mounting table. The operating tool is not too long, and it is easy to have a compact layout.

〔Example〕

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

FIG. 5 shows the rear part of the riding type rice transplanter according to the present invention. In this rice transplanter, a seedling planting device (4) is connected to a rear portion of a riding type traveling body (1) via a link mechanism (3) which is moved up and down by an expansion / contraction drive of a hydraulic cylinder (2) so as to be vertically movable. Yes, a preliminary seedling placement device as a preliminary seedling placement device for placing the preliminary seedlings in parallel along the lateral direction of the fuselage between the driver's seat (5) of the traveling aircraft (1) and the seedling planting device (4). It is equipped with a table (6).

The seedling planting device (4) is provided with a rearward descending inclined seedling table (8) that reciprocates with a constant stroke in the left-right direction with respect to the planting transmission case (7) that also serves as a frame. Three feed cases (9) arranged in parallel in the left-right direction at appropriate intervals are connected and fixed to the case (7) so as to extend rearward, and the rear portion of each feed case (9). A rotating arm type planting mechanism (10) is attached to both sides to form a 6-row planting type. Further, a ground float (12) is attached to the lower part of the planted transmission case (7) via a link mechanism (11) so that the relative vertical position can be adjusted and the rear horizontal axis can be swung up and down. ) Is detected, and the control mechanism (not shown) for maintaining the ground height of the seedling planting device (4) at a predetermined height is provided.

Behind the seedling planting device (4), a fertilizer applying device (13) is provided which is used to apply fertilizer at the same time as the seedling planting work and to change and adjust the fertilizer application amount.

As shown in FIG. 4, a step portion (26) extending over the entire planting width is attached at a low position at the rear of the seedling planting device (4). A notch (27) that allows the planting mechanism (10) to pass through is formed in a portion of the step portion (26) corresponding to the planting mechanism (10), and an inner peripheral edge of the notch (27) is formed. A vertical wall portion (28) is formed over the entire area to prevent accidental contact with the planting mechanism (10) when an operator rides on the step portion (26).

The seedling planting device (4) is configured to be switchable between a state in which all six rows are planted and a state in which only some rows are partially planted. That is, each thread clutch (not shown) capable of intermittently operating the power supply to each feed case (9) in the planted transmission case (7).
Is provided so that the state where the planting mechanism (10) having only a part of the rows is driven can be revealed. A sliding rail (14) for receiving and supporting seedlings is provided at the lower end of the rear part of the seedling placing table (8) so as to be slidably adjusted in a direction along the seedling moving direction of the seedling placing table (8). The planting depth of the seedlings can be changed by adjusting the amount of seedlings to be planted, and by vertically moving the pivot point of the grounding float (12) relative to the planting device (4). It is configured as follows.

Then, a plurality of operation levers (15 to 19), which is an example of an operation tool for the seedling planting device (4), are attached to the seedling stand (10).
It is located on the lower surface side of.

More specifically, as shown in FIG. 3, the respective clutch operating levers (15) for specially opening and closing the respective clutches,
Seedling slides the drive on / off operation lever (18) of the fertilizer application (13), each lever of the fertilizer amount change adjustment operation lever (19) and the slide rail (14) which is an example of an adjustment operation tool. Quantity control lever (16) and ground float (1
2) vertically moving the planting depth adjusting operation lever (17) and the respective levers of the operation levers (15 to 19) on the lower surface side of the seedling stand (8). It is arranged so as to be located near the front end of the table (8).

As shown in FIG. 1, when the seedling planting device (4) is in the ascending operation state, the tip end of each of the operation levers (15 to 19) is at a higher level than the upper end of the preliminary seedling stand (6). Each operating lever (15 to 19) is attached to the position. According to this structure, the driver can manually operate the operation levers (15 to 19) from the upper side of the spare seedling stand (6) without getting off the aircraft (1).

The seedling removal amount adjusting operation lever (16) is configured to operate in the lateral direction of the machine body. FIG. 1 shows the operation linkage structure. A support rail (20) for supporting the upper part of the seedling mounting table (8), in a direction substantially orthogonal to the seedling mounting table (8),
That is, the pivot shaft (21) for supporting the operation lever rotation in the vertical direction (21)
Of the boss (2
The operation lever (16) is attached to 2) so that it can be bent in the vertical direction and integrally rotated in the left-right direction at an intermediate position.
A lateral drive arm (23) is fixed to the boss (22), and the drive arm (23) and the slide rail (14) are connected via a push-pull rod (24) and a link mechanism (25). The interlocking connection is made so that the amount of seedlings can be adjusted by manually operating the operation lever (16) in the left-right direction.

Further, each of the other operation levers (15), (17), (18) and (19) is configured to adjust each operation object by swinging in the lateral direction of the machine body. .

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of the operation part structure of the rice transplanter according to the present invention. Fig. 1 is a side view of the main part, Fig. 2 is a sectional view taken along the line II-II of Fig. 1, and Fig. 3 is the main part. A plan view, FIG. 4 is a plan view of the step portion disposing portion, and FIG. 5 is a side view of the rear part of the rice transplanter. (2) ... Airframe, (4) ... Seedling planting device, (5) ... Operating seat, (6) ... Spare seedling storage device, (8) ... Seedling mount, (15 to 19) ... … Operating lever, (21) …… Vertical axis.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-61-135512 (JP, A) JP-A-62-40212 (JP, A) Actual opening Sho-63-101019 (JP, U) Actual opening Sho-56- 45215 (JP, U) Actually opened 56-162922 (JP, U) Actually opened 57-80214 (JP, U)

Claims (1)

[Claims] 1. A seedling planting device (4) at the rear of the traveling body (1).
Of the traveling machine body (1) and the seedling mounting table (8) of the seedling planting device (4) between the driving seat (5) of the traveling machine body (1) and the seedling mounting table (8). A preliminary seedling accommodation device (6) is widely arranged along the lateral direction, and an adjusting operation tool (16) for adjusting the seedling removal amount or the planting depth for the seedling planting device (4). , 17) is an operation part structure of the rice transplanter arranged on the lower surface side of the seedling placing table (8) in the seedling planting device (4), and the tip of the adjusting operation tool (16, 17) Part is located in the vicinity of the front end of the seedling mounting table (8), and when the seedling planting device (4) is in a raised state, the adjusting operation tool (16, 17)
The adjusting operation tool (16, 17) is attached in a state in which the tip part of the is located at a higher level than the upper end of the preliminary seedling accommodation device (6), and the adjusting operation tool (16, 17) is The seedling mounting table (8) is mounted so as to be swingable around a pivot shaft (21) provided at an intermediate portion in the vertical direction, and the adjustment swing operation direction of the adjustment amount is the seedling mounting table (8). The structure of the operation part of the rice transplanter, which is set in the left-right direction along the back side of the seedling mounting surface.