JPS6018018Y2 - Laterally moving rice transplanter in the planting section - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice transplanter having a structure in which a planting section can be driven up and down with respect to the machine and can be driven and moved in left and right lateral directions.

This type of rice transplanter with a horizontally movable planting section allows for easy turning with a large turning radius when turning at the end of a field, etc., while also moving the planting section laterally to the left and right with respect to the machine. This has the advantage that the rows of already planted seedlings can be easily aligned with the seedlings for the next planting, but on the other hand, when turning, the planting part may remain moved laterally and be raised above the ground. In such a case, the center of gravity of the aircraft shifts to the left and right, and a turning moment acts on the aircraft, which may cause the aircraft to lose its left-right balance and cause it to fall over.

Therefore, in order to safely turn the machine, it is necessary to return the planting section to the left and right center position with respect to the machine, which is disadvantageous in that the operation during the turn becomes extremely complicated.

In addition, as a means to eliminate such inconveniences in turning operations, we have provided a cam mechanism that forcibly moves the planting section back to the left-right center position with respect to the machine as the planting section is driven upward. However, in this case, in addition to this cam mechanism, a mechanism for driving and moving the planting part in the left and right directions, and a mechanism for releasing the link between this drive mechanism and the planting part are required. , there is a disadvantage that the overall structure becomes complicated and large.

In view of the above-mentioned circumstances, the present invention not only makes it possible to reliably return the planting section to the center position of the aircraft, which is necessary for safe aircraft turning, but also has a simple and compact structure. It can be configured to have a purpose in mind.

First, an embodiment of the present invention will be described based on the drawings.

Fig. 1 shows a ride-on rice transplanter of the puller mount type, and the rear of the machine 1, which has front and rear wheels 1 and 2, has a forward-leaning seedling loading stand 4A, a planting claw 4B, and a driving mechanism for these internally. A case 4C is used for certain plantings, and a planting part 4, which is made up of a float 4D for leveling the mud surface at the planned planting site, is connected to a top link 5 that can swing vertically and horizontally, and a pair of lower links on the left and right. 6.6.

As shown in FIG. 2, a device 1 for driving and lowering the planting member, a function for driving and moving the planting member in the left and right directions, and a function for driving and lowering the planting member, A driving device 1 is provided which has a function of forcibly returning the planting section 4 to the center position in the left and right directions with respect to the main machine 3.

The driving device 7 for raising and lowering the planting section 4 includes a pair of left and right lift arms 11. which are mounted at the rear upper end of the mission case 9 of this machine 3 and are driven and oscillated in the vertical direction by a hydraulic cylinder 10 built into the mission case 9. 11, and the lift arms 11, 11 and the lower ring 6.6
are pivotally connected to each other via lift arms 12.12, so that the planting section 4 is driven around the front end pivot connection portion of the lower link 6.6 by vertical swinging of the lift arms 11, 11. It is configured to be raised and lowered.

The planting section work lateral movement drive device 1 is constructed as follows.

That is, a hydraulic cylinder 13 is interposed between one lower link 6 and the transmission case 9, and the hydraulic cylinder 13 is arranged along the left and right lateral directions, and a hydraulic cylinder 13 is installed beside the upper swing path of the top link 5. A pair of left and right sensors 14.14' are provided to detect the lateral displacement of the top link 5 with respect to the main machine l based on the amount of rocking displacement caused by contact, and the sensors 14.14' and the hydraulic cylinder 13 via a wire 16.16 with a valve 15 for;
Therefore, the construction is such that the planting part is forcibly returned to the center position in the left and right directions with respect to the owner of the machine, by the expansion and contraction operation of the hydraulic cylinder 13 based on the detection result of the sensor 14 or 14'.

Further, the planting unit is configured to be driven and moved in the left and right lateral directions by swinging the operating lever 17 with respect to the valve 15 while the planting unit 4 is lowered to the planting operation position.

Further, FIG. 3 shows another driving device 8 for lateral movement of the planting section, which is constructed as follows.

That is, a single operating lever 18 that is swingable in two dimensions (front-back direction and left-right lateral direction), a valve 19 for the lifting hydraulic cylinder 10, and a valve 15 for the lateral movement hydraulic cylinder 13 are moved in the front-back direction. The vertical movement valve 19 is actuated by a swinging operation, and the lateral movement valve 15 is actuated by a lateral movement operation.
The operation guide plate 21, which has the operation guide groove 20 for the operation lever 18, is connected in a state in which the operation lever 18 is activated, and a central part of the horizontal ridge is placed at a location corresponding to the raising operation position (UP) of the planting section. A cam 22 having a substantially V-shaped cam surface 22a is provided so as to be movable only in the left and right directions.

Further, a spring 23 is provided to bias the cam 22 toward the left movement operation position, and the cam 22 and the lateral movement cylinder 13 are connected to the operation lever when the planting section 4 is located on the left side. 18 to the right movement operation position R, and when the planting section 4 is located on the right side, the operation lever 18 is linked in a state of being moved laterally to the left movement operation position to the movement guidance position. Therefore, based on the operation of the cam 23, the planting section 4 is driven upward, and the planting section 4 is forcibly moved back to the center position in the left and right directions with respect to the main machine 3. There is.

In addition, in the figure, DO indicates the planting part lowering operation position, and N indicates the neutral position.

In summary, the rice transplanter with a horizontally movable planting section according to the present invention, which has been officially registered, moves this planting section to the left and right center position with respect to the main machine 1 in conjunction with the driving upward movement of the planting section 4. Since it is characterized by the provision of a drive device 1 for forced return movement, the return movement of the planting part to the center position of the aircraft, which is necessary for safely turning the aircraft, can be carried out.
Not only can this operation be carried out reliably by using the driving up of the planting section (which is an essential operation at this time), but also the driving mechanism 8 for this purpose can be used to move the planting section 4 at any position in the left and right lateral directions. Since it can be held fixed, the entire lateral movement structure of the planting section can be configured more easily and compactly than when the planting section 4 is forcibly returned to its original position using a cam mechanism as described above. .

[Brief explanation of drawings]

The drawings illustrate an embodiment of the horizontally movable rice transplanter for the planting section according to the present invention, and FIG. 1 is an overall side view, FIG. 2 is a control system diagram of the main parts, and FIG. 3 is another embodiment. It is an operation system diagram showing. 1... Machine, Work... Planting section, 5...
. . . Link for driving up and down, 7 . . . Drive device for lifting the planting section, 1 . . . Drive device, 14. 14'・
...One sensor lever, 22...Cam. 18... Misao

Claims (1)

[Claims for Utility Model Registration] ■ A rice transplanter in which the planting part is configured to be movable up and down by drive relative to the machine 1 and movable by drive in the left and right directions. This rice transplanter is characterized in that it is provided with a drive device 1 for forcibly returning the planting section to the left and right center position with respect to the main machine 1. ■ The drive device 1 is equipped with a sensor 14, 14' that detects the lateral displacement of the planting part drive lift link 5 with respect to this machine 3.
A rice transplanter with a horizontally movable planting section according to claim 2, which is configured to operate based on a detection signal by a utility model. (2) The driving device 1 is configured to operate based on the operation of a cam 22 that is linked to the lifting operation of the operating lever 18 for the planting section lifting device 7. A horizontally movable rice transplanter for the planting section described in .