JPH06153642A - Attachment structure for side row fertilizer applicator in walking rice transplanter - Google Patents

Abstract

PURPOSE:To provide an attachment member for setting a side row fertilizer applicator to a walking rice transplanter, capable of accurate application of a fertilizer, designed so as to improve the stiffness of the whole rice transplanter and improve its durability and excellent in integrality between the side row fertilizer applicator and the rice transplanter. CONSTITUTION:The lower part of a fertilizer applicator frame 1 fixing and supporting a delivering unit 3 of a side row fertilizer applicator is set and fixed to a lower frame 5 connecting a mission (M) to a planting unit. The upper part of the fertilizer applicator frame 1 is set and fixed to an attachment frame 5b vertically set by the lower frame 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side-row fertilizer fixing structure for a walk-behind rice transplanter.

[0002]

2. Description of the Related Art A technique of applying a lateral row fertilizer to a walking type rice transplanter and applying fertilizer to the lateral row at the same time when planting seedlings is known. However, in the conventional method for mounting the lateral fertilizer applicator, the side surface of the feeding portion of the lateral fertilizer applicator is fixed to the fixing member, the fixing member is fixed to the supporting frame, and the supporting frame is the mission of the rice transplanter. It was a structure that was fixed to the frame that supports the case and the planting part, and fixed to the fertilizer mouth part at the lower end, and fixed to the lower part of the float arranged below the rice transplanter. .

[0003]

In the conventional method for attaching a lateral strip fertilizer applicator, the fixing member requires an intermediate member such as a support frame, so that the number of parts is increased and it is troublesome to install the fixing member. However, except for the part fixed to the float at the lower end, it had a frame structure that was dispersed or avoided other members, so the rigidity was weak due to the presence of an intermediate member between the rice transplanter body and the side during work. The fertilizer applicator sways, and accurate fertilization could not be obtained.

[0004]

The present invention uses the following method in order to solve the above problems. That is, the lower part of the fertilizer application frame 1 which fixedly supports the feeding part of the lateral strip fertilizer applicator is fixed to the lower frame which connects the mission case and the planting part, and the upper part of the fertilizer application frame 1 is projected above the lower frame. It is fixed to the mounting frame.

[0005]

The problems and configurations to be solved by the present invention are as described above, and the embodiments of the present invention shown in the accompanying drawings will be described below. Fig. 1 is a side view of an entire walk-behind rice transplanter equipped with a side-row fertilizer applicator, Fig. 2 is a side view of the side-fertilizer applicator, Fig. 3 is a front view of the same, and Fig. 4 is an X-direction arrow view of Fig. 2. 5 is a sectional view taken along line YY in FIG.

First, the overall construction of a two-row planting walk type rice transplanter will be described with reference to FIGS. 1 and 2. First, an engine E is arranged in front of the rice transplanter, the upper part of the engine E is covered with a bonnet 24, and the power of the engine E is arranged in the rear through a belt in the belt case 22. The lower frame 5 of the main body is extended from the transmission case M to the planting portion at the rear of the transmission case M. The main body lower frame 5 also serves as a transmission case from the mission case M to the planting portion. A drive wheel transmission case 25 is pivotally supported so as to be vertically rotatable from the side of the mission case M, and a drive wheel W is pivotally supported. The drive wheel transmission case 25
Is to rotate together with the vertically swinging arm 25a that vertically rotates by hydraulic pressure, whereby the drive wheel W is moved up and down to adjust the planting depth to the optimum position.

The middle part of the main body is a planting part and a fertilizing part. As shown in FIG. 2, the power transmitted to the lower frame 5 of the main body is planted to drive the planting claw 26 via the links 27 and 28. It is rotatable from a shaft 29, and the planting claw 26
The feed shaft support frame 5a of the seedling table 33 is erected above the main body lower frame 5 above the main body, and the fertilizer applicator mounting frames 5b and 5 are provided in front of the midway portion of the feed shaft support frame 5a.
b is provided in a protruding manner, the feed shaft 30 is arranged at the upper end of the feed shaft support frame 5a, and a shift operation for adjusting the traveling speed and the number of planted plants and switching between forward and backward movement is provided above the feed shaft support frame 5a. The lever 31 is protruding. In addition, a spare seedling stand 32 is provided between the bonnet 24 and the feed shaft 30. The side-row fertilizer applicator A is installed in the planting section, below the preliminary seedling mounting table 32, and immediately in front of the planting claw 26 and the feed shaft 30.

At the rearmost part of the rice transplanter, a seedling stand 33, which is slidable left and right by the feed shaft 30, is provided.
It is arranged on the rear end of the lower body frame 5, and the steering handle 34 is arranged above the rear of the seedling stand 33. A side clutch lever 35 for the drive wheels W and W is attached, and a planted clutch switch 36 that can be operated with fingers while holding the handle is attached. At the lower end of the seedling mounting table 33, a seedling picking amount adjusting lever 37 for adjusting the seedling amount that the planting claw 26 holds at one time is arranged.

Next, the construction of the side-row fertilizer applicator A and the construction of attachment to the walk-behind rice transplanter will be described with reference to FIGS. 2 to 5. The side-row fertilizer applicator A is configured such that fertilization hoses 4 are connected to the lower portions of the feeding portions 3 and 3 for each row, and a hopper 2 is attached to the upper portion. It is fixed to the rice transplanter main body by the fertilization frame 1.1 arranged between the four. The fertilization frame 1.1 has a triangular shape in a side view, and as shown in FIG. 3, a support frame 1d having an inverted U shape in a front view.
It is reinforced by. As shown in FIG. 2, the fixing method to the rice transplanter main body is as follows.
1b is fixed to the lower frame 5 of the main body, and the upper end fixing portion 1c
Is fixed to a fertilizer application frame 5b projecting from the feed shaft support frame 5a erected on the lower frame 5 of the main body via an attachment member 6.
Since it is fixed to the frame of the main body at the lower part and the upper part of the main body, the integration with the main body of the rice transplanter is high, and the rigidity of the lateral row fertilizer applicator A and the entire rice transplanter is also high.

The side-row fertilizer applicator A feeds the granular fertilizer in the hopper 2 downward at the feeding portion 3 and fertilizes it on the field through the fertilizing hose 4. The driving of the feeding unit 3 will be described. Link 28a at the bottom of the planting claw 26
The link 7 is fixed so as to swing together with the link 7
The lower part of the drive rod 8 is pivotally supported, and the upper end of the drive rod 8 is pivotally supported by the pivot shaft 9a of the fertilizer application rate adjusting member 9. The fertilizer application amount adjusting member 9 is fixed to one end of a rotary fulcrum shaft 10 which is horizontally provided above the fertilizer application frame 1. With the above configuration, the fertilizer application amount adjusting member 9 and the rotation fulcrum shaft 10 are integrally rotated up and down as the planting claw 26 is rotated. The pivot shaft 9a can be adjusted back and forth by an adjusting screw 9b, and the vertical rotation amount of the fertilizer application amount adjusting member 9 and the rotation fulcrum shaft 10 is adjusted by the positioning. Further, a pivotal support portion 10a is provided at the other end of the rotation fulcrum shaft 10, and one end of the upper link 11 is connected to the pivotal support portion 10a.
a, and the other end of the upper link 11 is pivotally supported by a pivot 12a, and the feeding portion 3 ,.
The turning power is transmitted to the feeding drive pipe 13 provided laterally between the three.

Here, the internal structure of the feeding unit 3 (not shown) will be described. The upper portions of the feeding unit 3.3 have upper holes 3a, 3a, and the granular fertilizer in the hopper 2 is the hopper. 2 through the bottom holes 2a, 2a and the upper holes 3a, 3a and fall into the feeding portion 3.3. Further, as shown in FIG. 3, the payout shaft 14 having an end fitted into the payout drive pipe 13 interlocks a vertical rotary shaft through a bevel gear in the payout part 3 and has a vertical direction. A number of perforated plates are circularly arranged on the rotary shaft, and one of the perforated plates is in a state in which the rotary shaft is loosely fitted, and the one perforated plate is fixed to the rotary shaft. Then, when the payout shaft 14 rotates and the longitudinal rotation shaft rotates, only the perforations fixed to the rotation shaft rotate, and the holes between the perforations intermittently coincide with each other. The fertilizer passes through the hole and drops into the fertilizer application hose 4 below.

The tip end of the feeding shaft 14 is fitted into the feeding drive pipe 13 as described above, and the feeding drive pipe 13 is rotated by the upper link 11 connected from the rotation fulcrum shaft 10. By rotating with this, the feeding shaft 14 having an integral structure is rotated. The adjustment in the fertilizer application amount adjusting member 9 adjusts the amount of rotation of the rotation fulcrum shaft 10 and the upper link 11, and the amount of rotation of the feeding drive pipe 13 and the feeding shaft 14, and in the feeding portion 3. The amount of rotation of the pan and the amount of fertilizer passing through the holes in the pan are adjusted.

A line-stop clutch 15 is provided at the tip of the feed-out shaft 14, and when the feed-out shaft 14 is fitted in the feed-out drive pipe 13, the line-stop clutch 1 is provided.
5 is fitted with the feeding drive pipe 13. Then, when the ratchet clutch lever 16 disposed on the outer side of each feeding portion 3 is rotated forward from the state of FIGS. 2 to 4, the proximal end portion of the ratchet clutch lever 16 formed into a cam shape. Pulls the sliding shaft 17, the slide clutch 15 slides toward the feeding part 3 side, the fitting with the feeding drive pipe 13 is disengaged, the transmission to the feeding shaft 14 is cut off, and the fertilizer application in the feeding part 3 is stopped. It will stop. Conventionally, a knob is projected directly behind the clutch as the operation of the streak clutch, and the clutch is slid by the operation of the knob. Since it was difficult to perform the operation between the parts, the stopper clutch lever 16 in the present embodiment.
When the clutch is operated by, the load of lever operation is light, and the lever position is on the outer side of the feeding portion, which facilitates the operation.

Next, the fertilization hose 4 under the side strip fertilizer applicator A
The configurations of the fertilizer application part and the groove forming part will be described. The grooving body 21 is fixed in front of the fertilizer application port 20, and the grooving body 21 is fixed to the lower surface of the float 23. And the fertilizer application port 20
A fertilization hose 4 is provided between the feeding section 3 and the feeding section 3.
Conventionally, the fertilizer application hose has a bellows-shaped boot provided on an upper portion of the fertilizer application port, and a tubular hose is provided between the boot and the feeding portion. However, when a tubular hose is provided, when the fertilizer absorbs moisture, it is likely to adhere to the inside of the hose and become easily clogged, and it is also difficult to remove the fertilizer when it adheres. Therefore, as in the present embodiment, the bellows-shaped boot, which is conventionally provided only on the upper part of the fertilizer application part, is extended to the lower end of the feeding part to form the fertilizer hose 4.
It eliminated the conventional tubular hose. By eliminating the thin tubular hose portion in this way, the hygroscopic fertilizer does not adhere to the portion, and even when the fertilizer adheres to the inside of the fertilizer application hose 4, the fertilizer application has a bellows shape. The fertilizer can be dropped by expanding and contracting the hose 4.

[0015]

The present invention has the following effects by being configured as described above. That is, when the side-row fertilizer applicator is attached to the walk-behind rice transplanter, the lower end and the upper end of the fertilizer frame having a triangular shape in a side view are fixed to different parts of the lower frame of the main body, and different fixings in the attachment. There is no need for interposing members, the number of parts can be reduced, and after mounting, it is firmly fixed, the side row fertilizer applicator and the rice transplanter are highly integrated, and there is little rolling, so the rice transplanter as a whole However, the rigidity is high, and the reliability and durability of the work are increased.

[Brief description of drawings]

FIG. 1 is an overall side view of a walk-behind rice transplanter equipped with a side-row fertilizer applicator.

FIG. 2 is a side view of a lateral strip fertilizer applicator A.

FIG. 3 is a front view of the same.

FIG. 4 is a view taken in the direction of the arrow X in FIG.

5 is a sectional view taken along line YY in FIG.

[Explanation of symbols]

 A Side-row fertilizer application 1 Fertilization frame 2 Hopper 3 Feeding section 4 Fertilization hose 5 Lower body frame 5a Support frame 5b Fertilizer attachment frame

Claims (1)

[Claims] 1. In a side-row fertilizer applicator mounted on a walk-behind rice transplanter, the lower part of a fertilizer frame 1 fixedly supporting a feeding part of the side-row fertilizer applicator is fixed to a lower frame connecting a mission case and a planting part. A side-row fertilizer application structure for a walk-type rice transplanter, characterized in that the upper part of the fertilizer application frame 1 is fixed to an attachment frame projecting upward from the lower frame.