JPH022175Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic operation device for a planting clutch in a walk-behind rice transplanter.

In other words, in a walk-behind rice transplanter that is configured with a planting clutch lever for clutching the planting section and left and right side clutch levers for clutching the left and right wheels, respectively, on the control side, When the aircraft turned on the headland side during work, the planting clutch was first cut to stop the planting section, and then the side clutch was cut and the aircraft turned. This operation is difficult because it is performed while operating the steering wheel, and if there is a long interval between these steps, it becomes difficult to turn on the headland side and the area of the headland becomes wider.

The present invention solves this drawback by operating the side clutch in that direction when turning, and the planting clutch can also be clutched off at once, making the operation easier, making it easier to turn, and reducing the area of the headland. It is an object of the present invention to provide a system that can reduce the amount of noise and has a simple structure that can be suitably implemented.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of a walk-behind rice transplanter, in which swing-type transmission cases 12a and 12b are respectively extended rearward from both sides of an engine E mounted above the front part of a float 11, and both transmission cases 12
Wheels 2a and 2b, which can be operated by side clutches, are mounted on axles at the rear of the wheels 2a and 12b, respectively, and handle grips 13a and 13a are mounted on both sides above the machine frame 4 of the handle frame extending upward from the rear of the machine.
3b is positioned, and by pulling the wires 6a and 6b, which are connected to the side clutch levers 3a and 3b connected below the handle grips 13a and 13b, respectively, both wheels 2
A seedling take-out plate 1 on the lower side of the seedling platform 14 is installed so that the side clutches a and 2b can be cut and operated, and is installed obliquely in front of the machine frame 4 so as to be able to reciprocate laterally.
5 is installed so that both planting claws 16, 16 of the planting part can be seen and planted, and is interlocked with the planting clutch lever 1 rotatably mounted on the upper part of the machine frame 4. The planting clutch at the planting portion of both planting claws 16, 16 can be operated to cut by the pulling action of the wire 5, and the structure is similar to the conventional structure.

A support shaft 9 is fixed in the transverse direction inside the machine frame 4 through which the wires 5, 6a, 6b pass, and three arms 8a, Each cylindrical boss 1 to which the lower part of 7 and 8b is fixed
7a, 18, and 17b are fitted adjacent to each other so as to be freely rotatable, and the middle part of the wire 6a is interlocked with the upper part of the left arm 8a via connecting rods 19a and 19b. The middle part of the wire 5 is interlocked with the connecting rod 20a and the connecting fitting 20b on the upper part, and the middle part of the wire 6b is connected with the connecting rod 2 on the upper part of the right arm 8b.
1a, 21b, and as the planting clutch lever 1 and side clutch levers 3a, 3b are operated to pull the wires 5, 6a, 6b, the arms 7, 8a, 8b rotate. The planting clutch and side clutch are installed and configured so that they can be operated to cut while moving.

Further, from the front edge side of the upper part of the arm 7, a lateral engaging piece 10 whose both ends A and B can be engaged with the upper front edges of the arms 8a and 8b is integrally fixed and extended. is both arms 8
A, 8b can be rotated to the clutch disengaging side regardless of the clutch disengaging side, and when both arms 8a, 8b respectively rotate to the clutch disengaging side, they engage with the engagement piece 10 and rotate the arm 7 to the clutch disengaging side. Install and configure it so that it will work.

Note that it is also possible to configure the engaging pieces to be fixedly attached to the arms 8a and 8b, respectively, so as to engage with the arm 7.

Therefore, the planting clutch lever 1 can be operated as shown by the arrow C to operate the clutch of the planting part, and the side clutch levers 3a and 3b can be operated as shown by the arrow D to operate the wheels 2a and 2.
The side clutch b can be operated in the same manner as before, but when the planting clutch lever 1 is used to pull the wire 5 as shown by the arrow H to disconnect the planting clutch, as shown in Fig. 11. As shown in FIG. 2, the engaging piece 10 simply separates from the arms 8a and 8b, and the arm 7 is operated by simply rotating.

Furthermore, when turning the machine to the left on the headland side of a field, when only the left side clutch lever 3a is operated, the arm 8a is rotated by the wire 6a which is pulled in the direction of the arrow. As shown in FIG. 12, the arm 8a engages with one end A side of the engagement piece 10, and while rotating the arm 7, the wire 5 is pulled in the direction of the arrow H, and the planting clutch lever 1 The planting clutch will break even if you do not operate it.

Similarly, even if the right side clutch lever 3b is operated to turn the aircraft to the right, the arm 8b engages with the other end of the engagement piece 10 and rotates the arm 7, as shown in FIG. This means that the planting clutch can be automatically cut while the plant is being planted.

If the planting clutch is configured to be disengaged after a time lag after the side clutch is disengaged, it will be possible to perform operations without malfunction when correcting the direction of the aircraft.

In this way, the present invention includes a planting clutch lever 1 that performs clutch operation of the planting section, and both left and right wheels 2.
In a walk-behind rice transplanter configured with left and right side clutch levers 3a and 3b disposed on the control side for clutching side clutches a and 2b, respectively, the planting clutch lever 1 is provided in the machine frame 4.
The three arms 7, 8a, 8b connected to the middle part of the wire 5 linked to the side clutch levers 3a, 3b, and the middle parts of the wires 6a, 6b linked to the side clutch levers 3a, 3b, respectively, are brought close to each other in parallel and can be rotated independently. The arm 7 of the planting clutch can be rotated to the clutch cutting side independently of the other arms 8a and 8b, and both arms 8a and 8b of the side clutch can be rotated to the cutting side, respectively. In order to be able to rotate the arm 7 of the planting clutch toward the cutting side, the arm 7 or both arms 8a, 8
Since an engaging piece 10 that engages in only one direction with respect to the other arm is fixed on one side of the arm b, planting can be done simply by cutting and operating the side clutch when turning in the field. The clutch can also be disengaged at once, making maneuvering easier, making it easier to turn and maneuvering to reduce the area on the headland side, which is suitable for a simple structure that works reliably. It has the advantage of being able to be implemented in many ways.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a side view of the walking rice transplanter, Fig. 2 is a plan view thereof, Fig. 3 is a side view of the main parts, and Fig. 4 is a plan view of Fig. 3. , FIG. 5 is a perspective view along the - line in FIG. 4, FIG. 6 is a plan view thereof, FIG. 7 is a partial perspective view along the - line in FIG. 4, FIG. 10 is a plan view thereof, and FIGS. 11 to 13 are side views showing the operation. 1... Planting clutch lever, 2a, 2b... Wheels, 3a, 3b... Side clutch lever, 4...
...Machine frame, 5, 6a, 6b...Wire, 7, 8
a, 8b...arm, 9...support shaft, 10...engaging piece.

Claims (1)

[Scope of utility model registration request] A walking type rice transplanter comprising a planting clutch lever 1 for clutching the planting part, and left and right side clutch levers 3a and 3b for clutching the left and right wheels 2a and 2b, respectively, on the control side. In the machine, the machine frame 4 has an intermediate part of the wire 5 interlocked with the planting clutch lever 1 and both side clutch levers 3a, 3.
The three arms 7, 8a, 8b connected to the intermediate portions of both wires 6a, 6b interlocked with the wires 6a, 6b are brought parallel to each other and pivoted on a support shaft 9 so as to be able to rotate independently, and the arm 7 of the planting clutch is is the other both arms 8
The arms 8a and 8b of the side clutch can be rotated to the cutting side independently of the clutches a and 8b, and the arms 7 of the planting clutch are
An engaging piece 10 that engages only in one direction with respect to the other arm is fixed to one side of the arm 7 or both arms 8a and 8b so that the arm 7 can be rotated toward the cutting side. An automatic operating device for a planting clutch characterized by the following.