JPH025374B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice transplanter equipped with a fertilization device, and conventionally, a multi-row rice transplanter is configured to apply fertilizer in accordance with each seedling planting position of each seedling planting device. Rice transplanters with fertilization devices were known, but with multi-row rice transplanters, during seedling planting work,
When the end of planting in the field approaches, seedling planting by some of the seedling planting devices out of all the seedling planting devices is stopped and a small number of rows of seedlings are planted before the final seedling planting process to avoid leaving any unplanted seedlings. In the final seedling planting process, the entire seedling planting device is used to plant the seedlings so that no seedlings are left unplanted up to the edge of the ridge. In this case, with conventional multi-row rice transplanters, fertilizer is also applied to the rows with missing plants where seedling planting has been stopped, and fertilization is applied again when seedlings are planted in the rows with missing plants in the next process. This resulted in excessive fertilization, which resulted in drawbacks such as inhibiting the growth of planted seedlings and causing growth spots.

Therefore, the present invention has taken the following technical measures for the purpose of eliminating the drawbacks of the conventional device described above.

That is, in the present invention, the seedling planting devices 10 are divided into a plurality of groups, and an operating device 40a is provided for separately operating the drive of the seedling planting device 10 intermittently.
Fertilization corresponding to the seedling planting device 10 of the group stopped by the drive cutting operation of the operating device 40
The rice transplanter with a fertilization device is characterized in that it is provided with a fertilization device 33 that is configured to be stopped by the drive disconnection operation of a.

Describing one embodiment of the present invention in detail, reference numeral 1 denotes a towing vehicle body, which has a pair of left and right front wheels 2, 2 and a pair of left and right rear wheels 3, 3 at the lower part, and a bonnet 4 at the front end of the upper part.
A control seat 5 is provided behind the engine (not shown), and a control handle 6 is provided between the engine and the seat 5.

Reference numeral 7 denotes a rice transplanting device, which has a plurality of seedling tanks 9 for storing seedlings, which are tilted so that the front side is on top on the top of a planting part frame 8 which also serves as a rice planting case, and which are moved back and forth from side to side. It consists of a seedling planting device 10 located at the rear end of the seedling tank 9 for dividing and planting seedlings one by one, and a soil leveling float 11 attached to the lower part of the frame 8 for leveling the soil surface. ing.

The frame 8 has branch portions 8a, 8b, and 8c extending rearward at a predetermined left-right interval and to which a seedling planting device is attached.

The seedling planting device 10 is arranged at each branch part of the frame 8, has a seedling dividing claw 12 attached to the front end, and has a rear end connected to the frame 8 by a swinging arm 13.
The seedling dividing claw 12 is attached to the front and rear intermediate portions so as to be driven and rotated by a crank 15, so that the seedling dividing claw 12 draws an approximately elliptical movement locus in the upper and lower directions.

Reference numeral 16 denotes a shaft that simultaneously rotates the cranks 15, 15 of the pair of left and right seedling planting devices 10, 10, and is rotatably mounted in each branch portion 8a, 8b, 8c of the frame 8. A sprocket 18, which is driven and rotated by a chain 17, is rotatably fitted to the left and right intermediate portions.

Reference numeral 19 denotes a clutch, which has a driving pawl a on one side of the sprocket 18, a driven pawl b on the sprocket 18 side of a clutch piece 20, which is wedged on the shaft 16 and movable in the axial direction, and a spring. 21, it is configured to be resiliently held so as to always be pressed toward the sprocket side, and to engage with the driving pawl a and the driven pawl b. A spiral cam surface 20a is formed on the outer peripheral surface of the clutch piece 20, and by bringing the clutch pin 22 into contact with this cam surface 20a, the driven pawl b is moved from the driving pawl a against the spring 21. It is configured to leave. The clutch pin 22 is slidably provided on the frame 8, and is configured so that it is normally pulled out and removed from the cam surface by a spring 23, and is configured to be pushed in by a lever 24 so that it comes into contact with the cam surface. are doing.

Reference numeral 25 denotes a lifting device, in which the bases of an upper link 26 and a lower link 27 are attached to the rear end of the towing vehicle body 1 via a bracket 28, and the rear ends of both links are connected by a hitch frame 29. A hydraulic cylinder device 3 is provided between the par link 26 and the towing vehicle body 1.
0 is inserted.

The rice transplanting device 7 is attached to the hitch frame 29 via a rotating shaft 31 so as to be able to roll freely. Further, an intermediate shaft is attached to the hitch frame 29 and is rotated by transmission from the engine on the towing vehicle body 1 side via an appropriate transmission section, and power is transmitted from this to the transmission section on the rice transplanting device 10 side. There is. 32 is the transmission belt.

Reference numeral 33 denotes a fertilizer application device, which includes a hopper 34 for storing fertilizer that is attached to the towing vehicle body 1 side, a delivery device 35 provided at the bottom of the hopper, and a delivery device 35 that delivers the delivered fertilizer to the vicinity of the top of the land leveling float 11 of the rice transplanting device 10. A fertilizer applicator consisting of a hose 36 for transporting the soil downward, a furrower 37a for making a groove at a constant depth by submerging the middle and lower parts of the soil, and a pipe 37b attached to the furrower 37a for applying fertilizer into the groove. It consists of 37.

The fertilizing devices 33, 33 are equipped with one fertilizing device 33 for two adjacent seedling planting devices among the seedling planting devices 10, 10..., and are provided between the seedling planting rows. The fertilizer applicator 37 is disposed at.

The feeding device 35 can move along the axial direction of the roll rotation shaft on the upper surface of the rotation roll 35a with a groove that is transmitted and rotated, and can open or cover the upper surface of the roll. It consists of a shutter 38 having a semicircular cross-section, and is provided so that it can be freely moved by a lever 39 provided outside the hopper, and is provided so that when the shutter 38 is pushed in, feeding of the fertilizer is stopped. ing.

40a, 40b... are the seedling planting devices 10, 10
Of these, 40a is connected to the clutch 19 in the left branched frame 8a with a wire 41a, and 40b is connected to the clutch 19 in the center frame 8b in the same way. connected by a wire 41b,
It is constructed so that each clutch 19, 19 can be turned on and off in sequence.

43a, 43b are the shutters 38, 38 of each of the fertilizer applicators 33, 33 and the clutch lever 40.
When the clutch 19 on the left side is disconnected using the wire that connects 40a and 40b separately, fertilization on the left side will be stopped.
They are interlocked and connected so that when the central clutch 19 is disconnected, the corresponding central fertilization is stopped.

In addition, in the figure, 45 is a preliminary seedling mounting stand, which is attached to the towing vehicle body 1.
A rotary link 46 on the side and a rotatable telescopic link 47 which is rotatable and extendable are provided at the rear of the pilot seat 5. And this spare seedling mounting table 4
The hopper 34 of the fertilizer applicators 33, 33 is disposed in the lower space of the fertilizer 5.

In the configuration of the above example, after placing the seedlings in the seedling tank 9 and filling each hopper 34, 34 of the fertilization device with fertilizer, the rice transplanting device 7 is lowered to bring the soil leveling float 11 into contact with the soil surface. The rice transplanting device 7 is towed by the towing vehicle body 1, and each rotating part is rotated by transmission.

Then, the seedling planting devices 10, 10... divide the seedlings into individual plants from the seedling tanks 9, 9... which move back and forth horizontally from side to side, and level the soil with the lateral protrusions of the soil leveling floats 11, 11... Plant the seedlings on the surface. Simultaneously with the seedling planting operation, the feeding devices 35 of the fertilizing devices 33, 33 are operated, and the fertilizer in the hopper 34 is fed out in predetermined amounts by the grooves of the rotating roll 35a and flows down through the hose 36 to the groove cutting device 37a. Fertilizer is released into the groove between the floats 11, 11 created by the process.

In this way, the fertilization work is carried out at the same time as the seedling planting work, but when the seedling planting work approaches the end in one field, all the seedling planting equipment 10 , 10... If seedlings are planted to the end, a wide width of unplanted seedlings may occur between the ridge and the final seedling planting row.

In such cases, before the final seedling planting process,
The clutch 19 of the seedling planting device located on the unplanted side of the rice transplanter, for example, the left seedling planting device in FIG. do. At this time, the shutter 38 of the feeding device 35 of the left fertilizer application device 33 is operated by the wire 43a so as to cover the upper surface of the rotary roll 35a, and at the same time the left
Fertilization between rows where seedlings are planted will be stopped.

In the final seedling planting step, the operation of the left seedling planting device is restarted and the seedling planting work is carried out so that no unplanted plants are left behind.

Since this invention has the above-mentioned structure, when stopping the work of planting an appropriate number of seedlings of the multi-row rice transplanter for the purpose of reducing the width of unplanted plants along the ridges of the field during the seedling planting work, the stop Fertilization can be stopped at the same time for the rows where seedlings have been planted, causing the inconvenience of being fertilized to the area where seedling planting has been stopped, and having to be fertilized again when seedlings are planted in this area. Therefore, there is an effect that growth inhibition and growth spots due to excessive fertilization do not occur.

In addition, in the example of the practical example, the structure is such that a fertilization device is provided for each seedling planting unit of two rows. Of course, the clutch and the corresponding fertilizer application device may be constructed in conjunction with each other.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention;
FIG. 2 is a simplified rear view of the main parts, FIG. 3 is a diagram of the interlocking mechanism of the main parts, and FIG. 4 is a sectional view of the main parts. Symbols in the figure: 1 is the towing vehicle body, 7 is the rice transplanting device, 10
19 is a seedling planting device, 19 is a clutch, 33 is a fertilizing device, 38 is a shutter of the fertilizing device, 40a, 40
b indicates the clutch lever.

Claims (1)

[Claims] 1 An operating device 40a that divides the seedling planting devices 10 into a plurality of groups and intermittently operates the drive for each group.
Fertilization is configured such that the fertilization corresponding to the seedling planting device 10 of the group to be stopped by the drive disconnection operation of the operation device 40a is stopped by the drive disconnection operation of the operation device 40a. Device 3
3. A rice transplanter with a fertilization device, characterized by being provided with...