JP2643698B2 - Chemical spraying structure of riding rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a riding type rice transplanter,
The present invention relates to a chemical spraying structure for spraying a chemical such as a herbicide on a rice field at the same time as planting a seedling.

[0002]

2. Description of the Related Art In a riding type rice transplanter, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-195841, a chemical spraying device (3 in FIG. 1 of the above-mentioned publication) is connected to a rear portion of a seedling planting device. There are things that are. The seedling planting device of this riding type rice transplanter is of a six-row planting type, and the medicine spraying device is configured to spray the medicine over all six planting streaks. As shown in FIGS. 1 and 3 of the above publication, the rotational power of the left two planting arms and the right two planting arms of the six planting beams is transmitted by the link rod 34 (to the transmission mechanism). (Equivalent) to the medicine spraying device, and the medicine spraying device is driven by the rotational power of the planting arm. Therefore, even if the two left implanting arms are stopped, the rotational power of the two right implanting arms is transmitted, and the medicine spraying device is driven. Conversely, even when the two right implanting arms are stopped, the rotational power of the two left implanting arms is transmitted to drive the medicine spraying device.

[0003]

In the riding type rice transplanter disclosed in the above-mentioned publication, two planting arms on the left side, two planting arms on the center and two planting arms on the right side of the six planting lines. Each of the three groups is provided with a clutch mechanism for performing an operation and a stop operation for each of the three groups. At the ridge, for example, stop the left two ridges, activate the center two and the right two ridges to perform the planting work, widen the ridge, and finally close the ridge. In some cases, it is possible to perform planting by operating all the planting streaks during planting and running. Therefore, according to the structure of the above publication, even if the planting is not performed by stopping the two left planting arms, for example, the medicine is sprayed on the two left planting parts similarly to the other planting members. Will be done. As a result, when planting and running on the edge of the ridge, the planting is performed also on the two rows that have not been planted as described above, so that the chemicals are sprayed twice on these two sections. In particular, if the application amount of the chemical is large, the growth of the seedling after planting may be adversely affected. It is an object of the present invention to provide a configuration in which the above-mentioned overspraying of a drug does not occur.

[0004]

A feature of the present invention resides in the following structure in the medicine spraying structure of a riding type rice transplanter as described above. That is, [1] a clutch mechanism for operating and stopping each of a plurality of specific planting arms adjacent to each other among all the planting lines is provided for the planting arms of all the planting lines. The number of clutch mechanisms provided for each specific planting arm is equal to the number of clutch mechanisms, and the rotation power of each specific planting arm is provided to the planting device. A transmission mechanism for transmitting to each medicine spraying device corresponding to the arm is provided.

[2] A clutch mechanism for operating and stopping each of a plurality of specific planting arms adjacent to each other among all the planting lines is provided for the planting arms of all the planting lines. ,
A fertilizing device that embeds fertilizer near each planting streak is provided on each planting streak, and a drug spraying device that sprays a medicine over the planting area of a specific planting arm is clutched to each specific planting arm. In addition to the number of mechanisms, a transmission mechanism is provided for transmitting the rotational power of each specific planting arm to each fertilizing device and each chemical spraying device corresponding to this planting arm.

[0006]

[Action]

[I] With the configuration as described in [1] above, for example, as shown in FIG. 2, in the case of a riding type rice transplanter with six rows, a clutch mechanism is provided for each of the left, center and right two rows of planting arms 2. Is provided, a total of three sets of the drug spraying devices 24 are provided for the two left, center, and right planting arms 2. Then, each medicine spraying device 24 receives power from each of the two implanting arms 2, and sprays the medicine within the implanting range of each of the two implanting arms 2. Thus, for example, when the transmission interrupting operation of the left two-joint clutch mechanism is performed, the left two-joint implant arm 2 stops and the left drug spraying device 24 also stops, so that the left two-joint implant mechanism is stopped. No medicine is sprayed in the area where the attached arm 2 is to be implanted. Therefore, when the seedlings are planted by traveling the portion where the above-described seedlings are not planted thereafter, the medicine is sprayed for the first time at this time, so that the state where the medicine is excessively sprayed does not occur.

[II] When configured as in the preceding section [2],
For example, as shown in FIGS. 2 and 3, in the case of a riding type rice transplanter having six rows of planting, two planting arms 2 each on the left, center, and right
If the clutch mechanism is provided, three sets of the fertilizer applicator 20 and the chemical sprayer 24 are provided for each of the two left, center, and right planting arms 2. Then, each fertilizer application device 20 and each chemical spraying device 24 receive power from each of the two rows of planting arms 2, and each chemical spraying device 24 is within the planting range of each of the two rows of planting arms 2. Each fertilizer 20 embeds a fertilizer near the planting strip of each of the two planting arms 2. Accordingly, for example, when the transmission cutoff operation of the left two-row clutch mechanism is performed, the left two-row planting arm 2 stops, and the left fertilizer 20 and the chemical spraying device 24 also stop.
No fertilizer is embedded and no medicine is sprayed in the area where the left two-row planting arm 2 is planted. Therefore, when the seedlings are planted by traveling the unplanted portion of the above-mentioned seedlings thereafter, fertilizer is embedded and the medicine is sprayed for the first time at this time, so that the fertilizer is excessively embedded and the medicine is excessively sprayed. It will not be in such a state.

[0008]

According to the first and second aspects of the present invention, when a specific planting arm is stopped so as not to partially plant seedlings, neither chemical nor fertilizer is supplied to the rice field. Therefore, it is possible to prevent an excessive supply of the drug and the fertilizer.
As a result, it is possible to prevent seedling growth failure due to excessive supply of chemicals and fertilizer.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 4, one horizontally long support frame 8 is fixed to the lower part of the planting mission case 1,
Three sets of planting transmission cases 15 are fixed to the support frame 8, and the output shaft 9 of the planting transmission case 1 and each input shaft 10 of the planting transmission case 15 are connected by a transmission shaft 12, respectively. . A pair of right and left rotation-driven planting cases 3 each having a pair of planting arms 2 are supported at the rear end of each planting transmission case 15, and a seedling rest 4 is provided above the planting transmission case 15. In addition, a float 5 is provided below the planting transmission case 15 to constitute a six-row planting type seedling planting device of a riding type rice transplanter.

As shown in FIG. 4, each planting transmission case 15
The input shaft 10 is provided with a clutch mechanism 17 for performing transmission and transmission interruption operations. The clutch mechanism 17 operates and stops a pair of planting cases 3 (corresponding to a specific plurality of planting arms 2 adjacent to each other) of the planting transmission case 15, and transmits the clutch mechanism 17. The input shaft 10 is rotated by the power from the planting transmission case 1 even after the shutoff operation.

A fertilizing device 20 is connected to and supported by the seedling planting device. Next, the fertilizing device 20 will be described. FIG.
As shown in FIG. 3, a pair of groove cutting plates 6 is fixed to the left and right of the float 5, and a groove making device 7 is fixed to each of the groove cutting plates 6. The groove making device 7 is configured by bending a flat plate into a U-shaped cross section, and digs a groove in the rice field as the riding type rice transplanter advances.

On the other hand, three sets of hoppers 13 for storing fertilizer are provided on a frame 16 extended from the support frame 8.
And six sets of feeding mechanisms 14 are connected and supported, and two sets of feeding mechanisms 14 are connected to one set of hopper 13.
The pipe 11 is connected from each feeding mechanism 14 to the groove generator 7. A common drive shaft 22 is provided for each of the two sets of the feeding mechanisms 14, and a link rod 18 (corresponding to a transmission mechanism) is provided and connected between the drive shaft 22 and the planting case 3.

As described above, one set of the hopper 13, two sets of the feeding mechanism 14, the pipe 11, the groove generator 7 and the like constitute one set of the fertilizer application device 20, and three sets (the clutch mechanism shown in FIG. 4). 17 (corresponding to the number 17) are provided for each planting transmission case 15 and two sets of planting cases 3 of the planting transmission case 15.

[0014] With the above structure, with the planting of the seedlings by the planting arm 2, the ditch generator 7 digs a groove beside the seedlings,
The rotational power of the planting case 3 is converted into push-pull power by the link rod 18 and transmitted to the drive shaft 22, and the fertilizer coming out of the feeding mechanism 14 is fed into the dug groove of the groove generator 7. Then, for example, when the transmission of the clutch mechanism 17 of the planting transmission case 15 on the left side of FIG. 4 is interrupted, the planting case 3 of the planting transmission case 15 stops and the planting of the two left stalls stops. 3 left fertilizer device 20
Also stop.

A drug spraying device 24 is connected to and supported by the seedling planting device. Next, the drug spraying device 24 will be described. As shown in FIGS. 1 and 2, three sets of skirt-shaped main bodies 26 are connected and supported by a frame 25 extending from the support frame 8, and a hopper 27 for storing a medicine is provided on the upper part of the main body 26. The set is connected. Inside each main body 26, a perforated plate 2 for taking out a predetermined amount of the medicine in the hopper 27 and guiding it into the pipe 28 while rotating around the vertical axis.
9. Rotating blades 30 are disposed within the area of the main body 26 (corresponding to the planting range of the specific planting arm 2) to spray and drop the medicine falling from the pipe 28.

The rotary blade 30 in FIG. 1 is driven to rotate at high speed by a motor 31. On the other hand, the connecting rod 1 extends over each planting case 3 and a driving unit (not shown) of the perforated plate 29.
9 (corresponding to a transmission mechanism), a crank arm 23, a swing arm 32 and a pair of wires 33 are connected. As a result, the rotational power of the planting case 3 is converted into a pushing / pulling power by the linkage rod 19 and transmitted to the driving unit of the perforated plate 29, and the perforated plate is operated by a one-way clutch (not shown) of this driving unit. 29 is driven to rotate.

With the above structure, for example, when the transmission of the clutch mechanism 17 of the planting transmission case 15 on the left side of FIG. 4 is interrupted, the planting case 3 of the planting transmission case 15 stops and the left The planting of the two rows is stopped, the left fertilizer device 20 is stopped, and the left drug spraying device 24 in FIG.
Will also stop.

As shown in FIG. 2 and FIG.
In addition, the medicine spraying device 24 is configured as a set of units every two lines. As a result, the fertilizer applicator 2
By arranging two sets of 0 and the chemical spraying device 24, it is possible to cope with a four-row rice transplanter. Therefore, when producing four-row, six-row, and eight-row rice transplanters, 1
It is possible to equip each rice transplanter with the fertilizer application device 20 and the chemical spraying device 24 only by producing the different types of fertilizer application device 20 and the chemical spray device 24.

As shown in FIG. 4, at both left and right ends of the support frame 8, there are provided support portions 34 which can swing up and down around the axis P. Markers 35 are rotatably supported by the support portions 34. I have. On the other hand, in the left and right planting transmission cases 15, the input shaft 10 protrudes from the opposite side to the transmission shaft 12.
a is provided. With the above-described structure, the left and right support portions 34 are alternately vertically pivoted around the axis P every time the turn is performed on the ridge, so that the bite portion 35a of the marker 35 on the descending operation side becomes the bite portion 10a of the input shaft 10. And the bite 35a of the marker 35 on the ascending operation side is separated from the bite 10a of the input shaft 10. As a result, the marker 35 on the lowering operation side is rotationally driven by the input shaft 10 and marks the rice field.

[Alternative Embodiment] In the above-described embodiment, both the chemical spraying device 24 and the fertilizer application device 20 are provided. However, the riding type rice transplanter of the type equipped with only the chemical sprayer device 24 without the fertilizer application device 20 is provided. Machine. In the above-described embodiment, the two planting strips are set as one set, and the clutch mechanism 17, the chemical spraying device 24, and the fertilizing device 20 are provided for the two trains. And one set of four planting strips (in the case of an eight-row planting type)
For these, a clutch mechanism 17, a chemical spraying device 24 and a fertilizer application device 20 may be provided.

[0021] In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is an overall side view of a seedling planting device, a fertilizing device, and a chemical spraying device of a riding type rice transplanter.

FIG. 2 is a rear view showing three sets of the medicine spraying device and six planting arms.

FIG. 3 is a rear view showing three sets of fertilizer applicators and six rows of planting arms.

FIG. 4 is a plan view showing a transmission structure to each planting arm in the seedling planting apparatus.

[Explanation of symbols]

 2 Planting arm 17 Clutch mechanism 18, 19 Transmission mechanism 20 Fertilizer 24 Chemical sprayer

Claims (2)

(57) [Claims] 1. A clutch mechanism (17) for operating and stopping each of a plurality of specific planting arms (2) adjacent to each other out of all the planting lines is provided with a planting arm of the whole planting line. (2)
And a medicine spraying device (24) for spraying a medicine to the planting area of the specific planting arm (2). The clutch mechanism (17) for each specific planting arm (2). And a transmission mechanism (19) for transmitting the rotational power of each specific implantation arm (2) to each medicine spraying device (24) corresponding to this implantation arm (2). Chemical spraying structure of rice transplanter. 2. A clutch mechanism (17) for operating and stopping each of a plurality of specific planting arms (2) adjacent to each other out of all the planting lines is provided. (2)
A fertilizer application device (20) for embedding a fertilizer near the planting streak in each planting streak, and spraying a medicine in a planting area of the specific planting arm (2). A device (24) is provided for each specific planting arm (2) by the number of the clutch mechanisms (17), and the rotational power of each specific planting arm (2) is supplied to the planting arm (2). ) And each chemical spraying device (2)
4) A chemical spraying structure of a riding type rice transplanter, which includes a transmission mechanism (18), (19) for transmitting to (4).