JP2803196B2 - Seedling plant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a seedling transplanter provided with a control unit for controlling steering of an airframe.

[Prior Art] Conventionally, in a seedling planting machine, there is a technique in which a control unit for controlling the steering of the machine body is provided so that a gap between a planting seedling of a current stage and a planting seedling of a previous process is a set spacing.

In the prior art, the range in which the aircraft is determined to be located at a position where the gap between the current planted seedling and the previous step planted seedling is the set strip is the same as the current planted seedling. Set the distance between the planted seedlings in the previous step and the area approaching the planted seedlings in the previous step on the basis of the position where the line between the planted seedlings in the step is the set line. It had been.

[Problems to be solved by the invention]

Normally, when planting seedlings with a seedling planter, the seedlings are reciprocated in the field to plant the seedlings. At this time, if the gap between the current planting seedling and the previous step planting seedling becomes wider, the entire field is planted. The number of seedlings to be planted in the country will decrease, leading to a decrease in revenue.

Therefore, if the steering of the aircraft is controlled so that the gap between the planted seedlings of the current process and the previous process is the set condition, the condition between the current planted seedlings and the planted seedlings of the previous process is the set condition. It is better to avoid being wider than possible.

However, in the related art, the range in which the aircraft is determined to be located at a position where the gap between the current planted seedling and the previous step planted seedling is the set strip is set as described above. Therefore, as a result of controlling the steering of the airframe, the gap between the seedlings currently planted and the seedlings planted in the previous stroke becomes wider or narrower within the control range based on the set spacing.

Therefore, according to the conventional technology, the steering of the aircraft is not controlled so as to avoid the gap between the planting seedlings of the current stage and the planting seedlings of the previous step from being wider than the set line, as a result. The above-mentioned problem arises in that the number of seedlings planted in the entire field is reduced, leading to a decrease in the yield.

Therefore, the present invention relates to a seedling planting machine provided with a control unit for controlling the steering of the aircraft so that the interval between the current planting seedling and the previous step planting seedling is a set interval. As the steering of the aircraft is controlled so as to minimize the gap between the seedlings and the planting seedlings in the previous process, the number of seedlings planted in the entire field decreases, causing a problem that leads to a decrease in yield. The task is to make it difficult.

[Means for solving the problem]

The present invention, in order to solve the above problems, a seedling plant provided with a control unit that controls the steering of the aircraft so that the spacing between the planting seedlings of the current process and the planting seedlings of the previous process is a set spacing, The range where it is determined that the aircraft is located at a position where the gap between the current planted seedling and the previous planted seedling is the set strip is determined by the distance between the current planted seedling and the previous planted seedling. The seedling planting machine is characterized in that the range on the side away from the planted seedling in the previous step is set smaller than the range on the side approaching the planted seedling in the previous step, based on the position between the set strips.

[Functions and Effects of the Invention]

The present invention relates to a seedling planting machine provided with a control unit for controlling the steering of the airframe so that the interval between the planting seedlings of the current stage and the planting seedlings of the previous process is the set interval. Since the range for determining that the aircraft is located at a position where the gap between the planted seedlings and the set seedling is the set gap is set as described above,
Steering of the aircraft is controlled less frequently than before so that the gap between the current planting seedling and the previous step planting seedling is wider than the set streak.Therefore, the number of seedlings that can be planted over the entire field is reduced. The problem that leads to a decrease in revenue is less likely to occur.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

The fuselage includes an engine 1, steering wheels 3, 3 steered by a front steering wheel 2, and rear wheels 4, 4, and a seedling plant 6 is connected to the rear by a link 5.

The power of the engine 1 is transmitted to a rear differential 9 through a transmission 8 that switches between a working speed and a higher road speed by operating a shift lever 7, and the wheels 4, 4 can be rotated. ing. The working speed and the road speed have reverse speeds, which can be shifted in several stages as necessary. The differential 9 intermittently intermits the rotation transmitted to the left and right wheels 4,4. A side clutch system may be used, and in a very simple system, a simple distribution device may be used. Further, in this embodiment, the rotation exiting the transmission 8 is also transmitted forward and transmitted to the steering wheels 3 via the differential 10.

The seedling plant 6 is moved up and down by an actuator 11 to switch between a lowered working posture and a raised non-working posture. The actuator 11 includes a valve 12
The pressure oil is sent or extracted by the switching of the operation. The rotation of the engine 1 is also transmitted to the seedling plant 6, and its operation is stopped or moved by the intermittent transmission of power by the clutch 13, and the clutch 13 is moved by operating the planting clutch lever 14. It is made.

At the front of the fuselage is a bar 15 that overhangs sideways.
A straight-ahead sensor 16 is attached to 15. The rectilinear sensor 16 shown in the figure is a photoelectric type that detects a seedling that has already been planted, that is, a seedling A that has been planted in the previous process, determines a relative positional relationship with the seedling A, and transmits this to the control unit 17. The actuator 19 steers the steered wheels 3, 3 so that the valve 18 is operated by a command from the control unit 17 and the seedling A and the straight-ahead sensor 16 are maintained in a fixed positional relationship.

Since the distance between rice strips is usually 33 cm and 35 cm, this straight-line sensor is used so that one of these strips can be selected and set.
16 is provided so that it can move laterally with respect to the rod 15 (second
Figure).

If the interval is too large, the number of seedlings to be planted becomes insufficient, which may lead to a decrease in sales.
The width that can detect the seedling A is made narrower on the outside than on the inside (FIG. 3), and the straight-ahead sensor 16 is set slightly inside (the body side) from the position corresponding to the set strip. Attach it to the rod 15 so that

Therefore, the above-described seedling transplanter is the same as the seedling transplanter provided with the control unit that controls the steering of the body so that the interval between the planted seedling of the current stage and the planted seedling of the previous process is the set interval. The range between the planted seedling of the current plant and the planted seedling of the previous process is set as the range for determining that the aircraft is located at the position where the space between the planted seedling of the previous planting and the planting seedling of the previous process is the set planting. Based on the position between the streaks, the range on the side away from the planting seedlings in the previous step is set to be narrower than the range on the side approaching the planting seedlings in the previous step. Steering of the fuselage is controlled less than before so that the interval between the seedlings is wider than the set interval, so that the number of seedlings to be planted in the entire field is reduced and the problem that leads to a decrease in yield is less likely to occur. .

In addition, the seedling transplanter explained above is also provided as follows.

That is, a sensor 20 such as a switch or the like is provided under the gearshift lever 7, and the transmission 8 is attached to the wheels 4, 4 by the engine 1
Is transmitted to the control unit 17 whether the power is transmitted at the working speed or at the road speed. When the rotation transmitted from the transmission 8 to the wheels 4, 4 is not at the working speed, the control unit 17 does not transmit the command to the valve 18.

Similarly, under the planting clutch lever 14,
There is a sensor 21 by a switch or the like, which transmits the transmission state of the power of the engine 1 to the seedling plant 6 by the clutch 13 to the control unit 17. Instructions are not transmitted. Note that these sensors 20, 21 can be provided directly on the transmission gear or the clutch instead of the levers 7, 14.

In addition, one link 5 has a potentiometer 22
And the upper and lower positions of the seedling plant 6 due to the rotation of the link 5 are transmitted to the control unit 17. When the seedling plant 6 is up and not in the working posture, a steering command is transmitted from the control unit 17 to the valve 18. Not to be.

Note that, instead of the potentiometer 22, a switch or other sensor may be provided at the operation system of the valve 12 or the operating position of the link 5. Further, it is also possible to detect the interval between the front end of the airframe and the front ridge, and to cut off the automatic steering when the seedling plant approaches the ridge.

[Brief description of the drawings]

FIG. 1 is a layout view of each device of a seedling planter, FIG. 2 is a front view of a part thereof, and FIG. 3 is a front view of a part showing another embodiment. The reference numerals in the figure are as follows. A: Planting seedlings in the previous process 16: Straight-ahead sensor 17: Control unit

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor, Hisashi Kamiya 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Examiner, Eiichi Yoshida (58) Investigated field (Int. Cl. ⁶ , DB name) ) A01C 11/02 A01B 69/00

Claims (1)

(57) [Claims] In a seedling planting machine provided with a control unit for controlling steering of an airframe so that a streak between a planting seedling of a current stage and a planting seedling of a previous step is a set streak, the planting seedling of the present stage and a planting seedling of a previous stage are provided. The range where it is determined that the machine is located at a position where the streak between the planting seedlings in the process is the set streak is the position where the streak between the current planting seedling and the planting seedling in the previous process is the set streak. A seedling transplanter characterized in that the range on the side away from the planted seedlings in the previous process is set smaller than the range on the side approaching the planted seedlings in the previous process.