JP2003061423A - Side row fertilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a trouble that, in a side row fertilizing machine, when a plurality of shutters formed for discharging residual fertilizer are not all surely closed, fertilizing operation is not normally performed to cause irregular fertilization. SOLUTION: In the side row fertilizing machine 30, a plurality of fertilizing units 48 having a fertilizer hopper 49 and a fertilizer-feeding case are placed in parallel. Residual fertilizer output ports 47e, 47e... having a shutter 82 are formed on the fertilizer feeding cases 47, 47..., and the shutter 82 is opened and closed by shifting a shutter opening and closing lever 84, an operational member, between a fertilizing position S and a residual fertilizer-discharging position T. A discharging hose 86 connected to a fertilizer output port 47e and existing at a storage position interferes with a shutter opening and closing lever 84 existing at the residual fertilizer-discharging position T, and it is shifted to the fertilizing position S by going over a dead point of an energizing member 83.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention is mounted on a rice transplanter,
Regarding the structure of the lateral row fertilizer applicator for fertilizing at the same time as transplantation,
In particular, it relates to a residual fertilizer discharge mechanism of a side-row fertilizer applicator.

[0002]

2. Description of the Related Art Conventionally, a planting section is connected to a rear portion of a traveling vehicle so that the planting section can be moved up and down, and a side-row fertilizer applicator is provided in the rear portion of the traveling vehicle and in front of the planting section so that the fertilizing operation can be performed simultaneously with the planting operation. There is a riding type rice transplanter that does. Generally, a fertilizer applicator includes a fertilizer hopper, a fertilizer feeding case located below the fertilizer hopper, and a fertilizing hose connected to the fertilizer feeding case. It is configured to fertilize the layers. Then, after the fertilizing work, the residual fertilizer in the fertilizer feeding case and the fertilizer hopper is discharged in order to perform cleaning, maintenance or residual fertilizer for the next fertilizing work. As a configuration for this, Japanese Patent Laid-Open No. 10-21562
According to Japanese Patent Publication No. 2, a path switching plate is provided in a connecting member between an air tank and a fertilizing hose provided in the lower part of the fertilizer feeding case, and fertilization is performed by an operation of a switching lever provided in a lower side of the feeding case and behind the air tank. The flow path and the discharge path can be switched, a fertilizer outlet for the discharge path is provided below the path switching plate of the connection member, and discharge hoses are individually connected, and a plurality of discharge hoses are joined. It has been proposed to provide a merging conduit to allow the front end of the merging conduit to be located between the front wheel and the rear wheel so that the residual fertilizer discharging operation can be performed.

[0003]

However, in the above-mentioned prior art, after the fertilization work is completed and the residual fertilizer discharge work is performed, a plurality of switching levers are operated to switch the path switching plate to the fertilization path side. If you forget this, when you put fertilizer into the fertilizer hopper for the next work, the fertilizer will be discharged from the discharge hose, and fertilizer will be applied to the mud layer from the side-grooving gutter provided at the tip of the fertilizer application hose. However, there is a risk that uneven fertilization will occur, resulting in uneven growth.

[0004]

The problem to be solved by the present invention is as described above, and the means for solving this problem will be described below.

That is, according to the first aspect of the present invention, there is provided a fertilizer application unit having a fertilizer hopper and a fertilizer feeding case, and in a side-row fertilizer applicator having a plurality of the fertilizer feeding units arranged side by side, residual fertilizer having a shutter in each of the fertilizer feeding cases. A shutter can be opened and closed by providing an outlet and switching the operating member between the fertilizing work position and the residual fertilizer discharging work position.
The residual fertilizer discharging work position of the operating member is a position that interferes with the discharging hose connected to the fertilizer outlet of the storage position.

According to a second aspect of the present invention, a biasing member is engaged with the operating member so that the operating member is held at each of the fertilizer application position and the residual fertilizer discharge operation position by crossing the dead point. The operation member at the fertilizer discharge work position is
By setting the discharge hose to the storage position, the fertilizer application position is reached.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described based on an embodiment shown in the drawings. FIG. 1 is an overall side view of a riding rice transplanter according to this embodiment, FIG. 2 is a plan view of the same, and FIG. 3 is a schematic perspective view of a vehicle body frame and a mission case. FIG. 4 is a front view of the side strip fertilizer applicator, FIG. 5 is a schematic plan view of the same, FIG. 6 is a left side view of the same, FIG. 7 is a left side enlarged view of the same, and FIG.
Is also a left side sectional view, FIG. 9 is a left side view showing a power take-out configuration of a lateral row fertilizer applicator, FIG. 10 is a front sectional view showing a transmission mechanism of the lateral fertilizer applicator, and FIG. 11 is a left side view of a fertilizer application unit.
FIG. 12 is an overall side view of the riding rice transplanter at the time of discharging residual fertilizer.

First, the overall construction of the riding rice transplanter according to this embodiment will be described with reference to FIGS. 1 to 3. However,
The present embodiment is a riding rice transplanter equipped with a four-row planting section 9. Therefore, a side-row fertilizer applicator 30 to be described later includes four sets of fertilizer application units 48, 48 ... The planting section 9 may be a six-row planting type or an eight-row planting type, and at this time, the side-row fertilizer applicator 30 is provided with fertilizer units 48, 48 ... Corresponding to the number of rows. To do.

The passenger rice transplanter comprises a traveling vehicle 1 and a planting section 9 connected to the rear portion of the traveling vehicle 1. The front wheel and the rear wheel of the traveling vehicle 1 have front wheels 2.2, respectively.
The rear wheels 3.3 are suspended, and an engine 5 as a power unit is mounted on the front portion of the vehicle body frame 4 and covered with a hood 22. Preliminary seedling mounts 90 are arranged on both sides of the bonnet 22, and a steering handle 8 is also arranged above and behind the bonnet 22. The main shift lever 7 is provided around the steering handle 8 and on the bonnet 22.
5. A seedling joint lever 76, an accelerator lever 72, etc. capable of turning on and off all power are provided, a main clutch pedal 74 is provided on the lower left side of the steering handle 8, and a brake pedal 73 is also provided on the lower right side. ing.

A mission case 6 formed in the front-rear direction is disposed at the rear of the engine 5 and substantially in the center of the left and right of the vehicle body frame 4. The front portion of the mission case 6 supports the front wheels 2.2 and the rear portion thereof. The rear wheels 3.3 are supported by. The mission case 6 includes a body cover 20 integrally formed with a step 20c located behind the hood 22 and in front of the driver's seat 7, steps 20b and 20b located on the side of the driver's seat, and a pedestal for installing the driver's seat 7. The driver's seat 7 is provided at the upper rear portion of the vehicle body cover 20. Further, on the side of the driver's seat 7 of the vehicle body cover 20, there are a shift lever 77, a hydraulic sensitivity adjusting lever 141, etc. for operating the planting part 9 up / down, planting on / off, gear shifting when planting, a line drawing marker, and the like. It is provided.

At the rear part of the traveling vehicle 1, a planted transmission frame 92 constituting the planted portion 9 is provided.
An elevating and lowering link mechanism 10 including a top link 11 pivotally supported on an upper portion of a hitch 94 provided on a front portion of the hitch 2 via a rolling fulcrum shaft 17 and a lower link 12 pivotally supported on a lower portion of the hitch 94. Are connected via.

The top link 11 which constitutes the lifting link mechanism 10 has a mounting portion 43a which is fixedly provided on an upper portion of a rear frame 43 which is an inverted U-shape in rear view and which constitutes the vehicle body frame 4.
Is pivotally supported. On the other hand, in the lower link 12, the front portion of the support body 12a provided in the front portion of the lower link 12 and having a triangular shape in a side view is pivotally supported by the lower portion of the rear frame 43, and the upper and lower portions of the support body 12a are lifted and lowered. An elevating cylinder 15 that drives the link mechanism 10 up and down is connected.

The rear frame 43 is used as a supporting portion of the lifting link mechanism 10 and the mounting plate 3 is used.
A rear axle case 38, which is integrally provided on the rear portion of the mission case 6, is connected via 9. Further, above the rear frame 43, between the driver's seat 7 and the planting section 9, a lateral fertilizer applicator 30 to be described later is arranged.

As described above, the planting section 9 connected to the rear part of the traveling vehicle 1 includes a four-row planting type seedling table 91 and a plurality of planting claws 9.
3, 93, etc., and the seedling table 91 arranged at the front high and the low low, the lower rail 95 and the guide rail 9
6 is supported by the planted transmission frame 92 so as to be reciprocally slidable in the left and right directions, and the rotary cases 93a, 93a ,.
The planting claws 93, 93, ... On which the seedlings are planted while the tip draws an elliptical locus by the rotation of, are arranged at the rear part of the planting transmission frame 92.

A center float 9 is provided below the planting section 9.
7 and side floats 98, 98 are arranged. The center float 97 is arranged on the left-right center line of the traveling vehicle 1, and the side floats 98, 98 are arranged at symmetrical positions of the center float 97 to keep the left-right balance of the planting section 9 and The posture is stabilized so that the planting can be done accurately. The side floats 98, 98 are provided with side strip groovers 33, 33, ... Adjacent to the planting site of the seedlings in each planting strip, and the side strip groovers 33, 33. From the side strip fertilizer applicator 30 to the transfer hose 32 while forming a groove for feeding fertilizer into the mud layer toward the lower side.
・ The fertilizer sent via 32 ・ ・ is applied to the mud layer.

In this way, the above-mentioned riding rice transplanter utilizes the power of the engine 5 to drive the front wheels 2.2 and the rear wheels 3.3 for traveling, and is capable of reciprocating left and right sliding. Nail 93.
・ Take out by and plant seedlings continuously.
It is constructed so that fertilizer can be applied at the same time as planting.

The side-row fertilizer applicator 30 according to the present invention will now be described. First, the support structure of the lateral strip fertilizer applicator 30 will be described. As shown in FIG. 3, rear U-shaped rear frames 43 in a rear view are fixedly mounted on the rear portions of the left and right front and rear frames 44, 44, which are constituent members of the vehicle body frame 4, and the left and right side portions of the rear frames 43 are fixed. The step support frames 109, 109 each having an L-shaped plane are fixedly mounted on the base plate, and their connecting portions are reinforced by the support brackets 108, 108, respectively. Then, the left and right support brackets 108/10
Fertilizer lower frame 1 in the left-right direction of the machine through stays 8
06c is crossed. When the side row fertilizer applicator 30 is not installed in the rice transplanter, the support brackets 108
The vehicle body cover 20 can be extended rearward by supporting a rear deck (not shown).

Further, fertilization side frames 101L and 101R are provided on both left and right ends of the fertilization lower frame 106c, and the fertilization front frame 106a and the fertilization rear frame 106b are respectively applied to the fertilization side frames 101L and 101R similarly to the fertilization lower frame 106c. It is installed between. Then, the front part of the fertilizer feeding case 47, which will be described later, is replaced by the fertilizer application front frame 106a.
b, the rear part of the fertilizer feeding case 47, the fertilizer lower frame 1
The lower part of the fertilizer feeding case 47 is supported by 06c. The fertilization front frame 106a, the fertilization rear frame 106b, the fertilization lower frame 106c, the fertilization side frames 101L and 101R, etc. are used.
Are configured.

The left fertilizer side frame 101L is provided with a hole for communicating the air tank 51 and the blower 50, and the left fertilizer side frame 101 is also provided.
A mounting portion 103 for supporting the blower 50 is fixed to the L, and the stay 1 provided on the front portion of the blower 50 is fixed to the mounting portion 103.
04 is detachably and rotatably attached. Further, the fixing flange 102 provided on the side portion of the blower 50 and the side frame 101L are locked by the hook-like locking tool 28 provided on the fixing flange 102 side to fix the blower 50 and the side frame 101L. There is. In this manner, the fertilizer application frame 106 configured as described above is equipped with the air tank 51 and the blower 50, and the fertilizer hoppers 49, 49 ... And the fertilizer feeding cases 47, 47.
And the like to configure the side-row fertilizer applicator 30.

As shown in FIGS. 1, 4, and 5, the side-row fertilizer applicator 30 has a fertilizer hopper 49 for storing powdered and granular fertilizer.
And a fertilizer feeding case 47, which is a fertilizer feeding unit, and which houses a fertilizer feeding device for feeding a predetermined amount of fertilizer, and a float 9
The blower 50 of the turbo blower type for discharging fertilizer to the side-grooving gutter 33 of 7.98 / 98 through the flexible type transfer hose 32, and the cylindrical air tank 51 are provided, and one end of the air tank 51 (book) The blower 50 is attached to the left side in the embodiment, and four sets of four fertilizer feeding cases 47, 47 are arranged above the air tank 51. The fertilizer hopper 49, the fertilizer feeding case 47, the transfer hose 32, and the like constitute a fertilizer application unit 48, and the fertilizer application units 48 are arranged side by side in the lateral direction of the machine body.

Here, the fertilizer application units 48, 48, ...
Will be described. However, the fertilizer unit 48, 48 ...
Have substantially the same structure, and the structure will be described in detail using one set of fertilizer application units 48. As shown in FIGS. 6 to 8, the fertilizer hopper 4 is provided at the inlet 47 a on the front side of the upper surface of the fertilizer feeding case 47 provided in the fertilizer application unit 48.
While the lower outlet 49a of 9 is fitted, a bottom cover 56 in a forward tilted shape (upper end side is tilted forward, lower end side is tilted backward) is detachably fixed to the lower surface of the fertilizer feeding case 47. The bottom lid 56 is made of hard synthetic resin and is formed in a funnel shape (inverted cone shape).
Are integrally molded, and the bottom lid 56 and the joint portion 56b are
Are communicated via an outlet 56a having a small mouth area.

The front end of the joint portion 56b is
Joining pipe 5 for fitting the front end into the air tank 51
9 is connected and connected to the rear end portion, and the joint portion 56b
The transfer hose 32 is fitted to the rear end portion, and the air from the blower 50 is blown from the air tank 51 to the joint portion 56b and the transfer hose 32, and the bottom cover 56 is attached.
The fertilizer that falls from the outlet 56a to the middle of the joint portion 56b is air-transported to the position of the side-grooving groove device 33 via the transport hose 32.

Further, as a fertilizer feeding device, an intake 61
an inlet plate 61 having a and a plurality of feeding ports 6 on the same circumference.
A feeding plate 63 having 3a, 63a, ... and a discharge port 65a
And a substantially circular flat plate-shaped plate 61, 63, 65 arranged between the fertilizer feeding case 47 and the bottom cover 56 in a forwardly tilted and multi-layered manner.

Then, the feeding shaft 66 is rotatably supported in the forward direction by the inside of the fertilizer feeding case 47, and each plate 6
3. The lower end side of the feeding shaft 66 is passed through the central portion of 3.65, the inlet plate 61 and the outlet plate 65 are locked to the fertilizer feeding case 47,
The payout shaft 66 is allowed to freely rotate with respect to each of the plates 61 and 65, and the payout plate 63 is supported by the payout shaft 66 so as to be engaged therewith.
6, the feeding plate 63 is forcibly rotated, and the intake 6
The fertilizer entering the delivery port 63a from 1a is moved to the discharge port 65a and dropped in the direction of the outlet 56a.

Further, a residual fertilizer take-out port 47e is provided in the front part of the fertilizer feeding case 47, and a fertilizer hopper 4 after the fertilizing work is completed from here by a residual fertilizer discharging mechanism described later.
9 and the residual fertilizer in the fertilizer feeding case 47 is surely discharged and removed to the outside. As shown in FIG. 8, the residual fertilizer outlet 47e is provided with a shutter 82,
The shutter 82 can be opened and closed by operating the shutter operating lever 84. In this way, the residual fertilizer outlet 47e is opened and closed by opening and closing the shutter 82.

An elbow pipe 85 made of a synthetic resin material (for example, hard rubber) is provided at the residual fertilizer outlet 47e.
, And a flexible discharge hose 86 is connected to the elbow pipe 85. When discharging the residual fertilizer, the discharge hose 86 is extended to the side of the machine and discharged. When storing the discharge hoses 86, 86 ..., As shown in FIGS. 4 and 5, the discharge hoses 86, 86 ..
The front end of the hose clamps 89, 89 fixed to is clamped and stored in front of the side-row fertilizer applicator 30 above the rear end of the vehicle body cover 20. Further, the discharge hoses 86, 86 can be supported and stored by the hose clamps 105, 105 provided so as to project downward from the lower left and right sides of the fertilizer application frame 106.

Next, the transmission mechanism of the side-row fertilizer applicator 30 to the fertilizer feeding device will be described. As shown in FIGS. 8 to 10, the engine 5 serving as a drive source for driving the side-row fertilizer applicator 30.
The output from is branched to the planting section 9 side and the side-row fertilizer applicator 30 side by a power take-out mechanism 31 provided in the front-rear halfway portion of the mission case 6 and taken out. The power to the side-row fertilizer applicator 30 taken out by the intermediate shaft 35 is the intermediate shaft 35.
The continuously variable transmission input shaft 34b connected to the rear end inputs the continuously variable transmission 34, which will be described later, to the continuously variable transmission 3
The power that has been shifted by 4 is output from the continuously variable transmission output shaft 34c.
Is transmitted to a transmission shaft 37b connected to the transmission shaft 37b, and further the bevel gear 37a provided at the rear end of the transmission shaft 37b and the transmission output shaft 3
It is transmitted to the shift output shaft 36 via a bevel gear 36a provided on the gear 6. During this time, the amount of fertilizer fed out from the fertilizer feeding case 47 is adjusted by the continuously variable transmission 34, and the safety clutch device 37 acts on the transmission shaft 37b. Then, the shift output shaft 36 is
The drive case 4 fixed to the support plate 106d arranged in the substantially left and right center of the fertilizer application frame 106 via the rotary shaft 40.
6 is connected and interlocked with the payout input shaft 41 projecting from 6, and a payout drive shaft 45 extending in the lateral direction of the machine is interlocked with the payout input shaft 41 via a pair of bevel gears 42. .

In such a structure, the power transmitted from the feeding drive shaft 45 is a pair of bevel gears 68.
When the feeding shaft 66 is driven through the fertilizer hopper 4,
The fertilizer in 9 falls by a predetermined amount in the middle of the joint portion 56b, and the fallen fertilizer is directly conveyed to the position of the side-grooving groove 33 through the conveying hose 32.

The feeding drive shaft 45 includes a plurality of shafts 45a.
45b, 45c, etc., which are connected by a connecting tool 69, and each fertilizing unit 48, 48, ...
A clutch device 70 is installed in the side strip fertilizer applicator 3
Unit clutch lever 81, 81 located in front of 0
Thus, the left and right fertilizer application units 48, 48 are selectively driven.

Here, the residual fertilizer discharging mechanism will be described. In the side strip fertilizer applicator 30, the fertilizer remaining in the fertilizer hopper 49 and the fertilizer feeding case 47 after the fertilizing work is completely discharged for the purpose of reuse, and is stored in a state where moisture is prevented. Be served. The side-row fertilizer applicator 30 according to the present invention is characterized by being provided with a structure for simplifying the work of discharging residual fertilizer.

As described above, the residual fertilizer outlet 47e is opened at the front of the fertilizer feeding case 47, and the residual fertilizer in the fertilizer hopper 49 and the fertilizer feeding case 47 is reliably discharged and removed to the outside by the residual fertilizer discharging mechanism. By providing the residual fertilizer outlet 47e in the front part of the fertilizer feeding case 47, the residual fertilizer discharge work can be performed from the front side of the lateral row fertilizer applicator 30. As shown in FIG. 8, a shutter 82 is provided on the residual fertilizer outlet 47e formed integrally with the fertilizer feeding case 47, and the shutter 82 provided on the side of the fertilizer feeding case 47 is opened and closed. Shutter operation lever 84 which is an operation member
The shutter 82 can be opened and closed by operating. Thus, the residual fertilizer outlet 47e is opened and closed by opening and closing the shutter 82. The shutter 82 and the shutter operating lever 84 are provided in each fertilizer feeding case 47, 47, ..., Only the residual fertilizer of a desired planting article can be discharged.

The shutter operating lever 84 is
When the shutter 82 is in the substantially vertical state, the shutter 82 is closed and is in the fertilizer application position, and when in the substantially horizontal state, the shutter 82 is in the open state and is in the residual fertilizer discharge operation position. . That is, the shutter operation lever 84 is in a substantially vertical state during fertilizer application and fertilizer replenishment, and the shutter operation lever 84 is in a substantially horizontal state during residual fertilizer discharge work. And FIG.
1, the shutter operating lever 84 is biased by a biasing member 83 formed of a torsion spring or the like attached to the shutter operating lever 84. The urging member 83 has one end attached to a pin 47f formed integrally with the feeding case 47,
The other end is supported by a pin 84a formed integrally with the shutter operation lever 84, and when the biasing member 83 crosses the dead point, the fertilizer application position S and the residual fertilizer discharge operation position T
The shutter operating lever 84 is quickly switched from the fertilizer application position S to the residual fertilizer discharge operation position T, and vice versa, and is held at each position.

An elbow pipe 85 made of a synthetic resin material (for example, hard rubber) is connected to the residual fertilizer outlet 47e formed integrally with the fertilizer feeding case 47. As shown in FIGS. 4 and 5, in the rice transplanter equipped with the four-row planting section 9, two sets of fertilizer units 48 on the right side are used.
-The tip of the elbow pipes 85 and 85 provided on the 48 are directed to the right side, and the tips of the elbow pipes 85 and 85 provided on the left two fertilizer application units 48 and 48 are directed to the left side, respectively.・ 47 ・ ・ Residual fertilizer outlet 4
It is connected to 7e, 47e ,.

At least a part of the elbow pipes 85, 85, ... Is connected to a discharge hose 86, 86 .. As shown in 12, the discharge hose 8
6. 86 ... Is extended to the side of the machine and discharged into a container 168 (or a bag or the like) arranged on the side of the machine. In addition,
The ends of the discharge hoses 86, 86 ... Can be closed with a removable cap to prevent rainwater from entering and dampening the fertilizer when the discharge hoses 86, 86. .

The discharge hoses 86, 86, ... Are connected to the residual fertilizer outlets 47e, 47 through elbow pipes 85, 85 ,.
By connecting to e ..., the discharge angle of fertilizer can be adjusted freely, especially when discharging the residual fertilizer of the fertilizer application unit 48, 48 on the center side of the machine where fertilizer is difficult to discharge, discharge hose 86 (86C) -Measures such as increasing the inclination angle of 86 (86C) are simple, and it is possible to discharge residual fertilizer without clogging quickly. Further, the discharge hoses 86, 86 ,.
0b formed body cover 20 rear end and air tank 51
It is arranged so as to be pulled out to the side through the space between the front parts. Since there are no obstacles between the rear end of the vehicle body cover 20 and the front part of the air tank 51, the discharge hoses 86, 86 ,. The rear end of the vehicle body cover 20 and the front side of the air tank 51 can be used as a hose guide.

When the residual fertilizer is discharged, the fertilizer application unit 48 on the side of the machine and the fertilizer application unit 48 on the center of the machine are arranged so that the ends of the discharge hoses 86 are located at substantially the same height. Since the discharge work is performed in the state that 86 is pulled out to the side of the machine, the discharge hose 86 (8) connected to the fertilizer unit 48 located in the central portion is particularly used.
It is expected that the angle of 6C) will become gentle and the discharge of fertilizer will be delayed. However, the discharge hose 8
As described above, at least a part of 6 is configured to be expandable / contractible and bendable, so that the angle can be freely set, and the discharge hose 86 located on the outside of the fuselage is located above the rear wheel 3 and in the center of the fuselage. Side discharge hose 86 (86C)
Can pass through the spokes 3a of the rear wheel 3. Therefore, even the discharge hose 86 (86C) located in the central portion can form an inclination angle sufficient for discharge, the discharge speed can be accelerated, and clogging of fertilizer in the discharge hose 86 can be prevented. be able to.

When storing the discharge hoses 86, 86 ..., As shown in FIGS. 4 and 5, the discharge hoses 86, 86 ..
The tip is clamped by the hose clamps 89, 89 ... Fixed to 6a. At this time, the discharge hose 86.86.
Is above the rear end of the vehicle body cover 20 and is accommodated in the front part of the lateral strip fertilizer applicator 30. In this way, by adopting a bendable and expandable hose for the discharge hose 86, the discharge hose 8 is extended to the vicinity of the worker during discharge work.
6 can be brought in, and the hose 86 for discharge can be stored compactly by retracting the hose.

When the shutter operating lever 84 is in a substantially horizontal state, that is, when the residual fertilizer discharging work position is set, when the discharging hose 86 is at the storage position,
They try to interfere with each other. That is,
When the discharge hose 86 is to be stored, the discharge hose 86 cannot be stored if the shutter operating lever 84 is in a substantially horizontal state. Further, when the discharge hose 86 is brought to the position of the hose clamp 89 in order to be stored, it abuts on the shutter operation lever 84 at the residual fertilizer discharge work position T, and the shutter operation lever 84 is moved downward by the discharge hose 86. It is pressed and moved to the fertilizer application position S. As described above, since the shutter operating lever 84 is configured to switch between the residual fertilizer discharging work position T and the fertilizer applying work position S when the biasing member 83 crosses the dead point, the shutter operating lever 84 immediately remains when the discharging hose 86 abuts. The fertilizer discharge work position T is switched to the fertilizer work position S.

Therefore, when the discharge hose 86 is in the housed state, the shutter operating lever 84 is always in a substantially vertical position and is installed in the residual fertilizer outlet 47e formed integrally with the fertilizer feeding case 47. Shutter 8
2 is in a closed state. By configuring the shutter operating lever 84 and the discharge hose 86 in this manner, any of the shutters 82, 82 provided on the side-row fertilizer applicator 30 is configured.
..Prevent forgetting to close the shutter, and use shutter 8 during fertilizer application
This prevents the fertilizer from being applied normally because 2.82 ..
The discharge hose 86 arranged as described above is used for the side strip fertilizer applicator 3
Since it is in front of 0, the worker can discharge residual fertilizer while riding on the traveling vehicle 1, and operate the shutter operation levers 84, 84, ... and the discharge hose 86.8.
The handling of 6 ... becomes easy.

The above-mentioned Japanese Patent Laid-Open No. 10-215622
In the structure disclosed in the publication, when a situation such as forgetting to switch the path switching plate provided at the fertilizer outlet or the storage state of the discharge hose 86 is bad during fertilization work, the driver's seat is Since the operation lever of the path switching plate and the tip of the discharge hose are provided in places where it is difficult for the worker to visually recognize, the worker may not notice the spilling of the fertilizer or the like, and uneven fertilization may occur. On the other hand, in this embodiment, the discharge hose 86 is housed in a state where at least a part of its tip is located above the upper surface of the vehicle body cover 20, and the shutter operating lever 84 can be visually recognized from the driver's seat 7 and cannot be switched. Since the structure is not provided, the worker can find a defective storage of the discharge hose 86 by looking rearward even when seated in the driver's seat 7.

Further, the discharge hose 86 is attached to the vehicle body cover 2
By storing the rice plant with at least a part above 0, the rice transplanter travels in the mud in the seedling planting work performed with the discharge hose 86 stored. At this time,
It is difficult for mud to attach to the discharge hose 86. Therefore, it becomes easy to pull out the discharge hose 86 to discharge the residual fertilizer from the fertilizer feeding case 47 after the planting work, and the mud does not adhere to the worker. Since the discharge hose 86 does not have muddy soil, the fertilizer discharged through the discharge hose 86 during the residual fertilizer discharge work is difficult to absorb water, and the discharged fertilizer should be used again for fertilization work in good condition. You can

[0042]

Since the present invention is constructed as described above,
The following effects are achieved.

That is, as described in claim 1, in a side-row fertilizer applicator having a fertilizer hopper and a fertilizer feeding case, and a plurality of the fertilizer units arranged side by side, each of the fertilizer feeding cases is provided with a shutter. A shutter can be opened and closed by providing a fertilizer outlet and switching the operating member between the fertilizing work position and the residual fertilizer discharging work position.
Since the residual fertilizer discharge work position of the operation member is set to a position that interferes with the discharge hose connected to the fertilizer outlet of the storage position, if the operation member is the residual fertilizer discharge work position when storing the discharge hose, It can be easily noticed and prevents forgetting to return the operating member to the fertilizing work position.
Prevents uneven fertilization.

According to a second aspect of the present invention, a biasing member is engaged with the operating member so that the operating member is held at the fertilizer application position and the residual fertilizer discharge operation position at the respective dead point positions. The operation member at the residual fertilizer discharge work position is
Since the discharge hose is set to the storage position to reach the fertilizer application position, when the discharge hose is moved to the storage position, the operation member automatically becomes the fertilizer application position.
It is possible to prevent forgetting to return the operation member to the fertilizer application position.

[Brief description of drawings]

FIG. 1 is an overall side view of a riding rice transplanter according to an embodiment.

FIG. 2 is a plan view of the same.

FIG. 3 is a schematic perspective view of a body frame and a mission case.

FIG. 4 is a front view of a side-row fertilizer applicator.

FIG. 5 is a schematic plan view of the same.

FIG. 6 is a left side view of the same.

FIG. 7 is a left side enlarged view of the same.

FIG. 8 is a left side sectional view of the same.

FIG. 9 is a left side view showing a power take-out configuration of a side-row fertilizer applicator.

FIG. 10 is a front cross-sectional view showing a power transmission mechanism of a side-row fertilizer applicator.

FIG. 11 is a left side view of the fertilizer application unit.

FIG. 12 is an overall side view of the riding rice transplanter at the time of discharging residual fertilizer.

[Explanation of symbols]

30 Side row fertilizer applicator 47 Fertilizer feeding case 47e Residue fertilizer outlet 48 Fertilizer unit 49 fertilizer hopper 82 shutter 83 biasing member 84 Shutter open / close operation lever 86 Discharge hose 89 Hose clamp

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yamamoto, N.             1-32 Yanma, Chayamachi, Kita-ku, Osaka-shi, Osaka             -Agricultural machinery Co., Ltd. F-term (reference) 2B052 BC05 BC08 BC09 BC16 EA14                       EC10 EC19                 2B060 AA01 BA04 BA07 BA09 BB08                 2B062 AA01 AB01 AB07 BA22

Claims (2)

[Claims] 1. A side-row fertilizer applicator in which a fertilizer application unit having a fertilizer hopper and a fertilizer feed case is provided, and a plurality of the fertilizer application units are juxtaposed, and each fertilizer feed case is provided with a residual fertilizer take-out port equipped with a shutter for operation. The shutter can be opened and closed by switching the member between the fertilizer application position and the residual fertilizer discharge work position, and the residual fertilizer discharge work position of the operation member interferes with the discharge hose connected to the fertilizer outlet at the storage position. A side-row fertilizer applicator that is characterized by the position. 2. A biasing member is engaged with the operating member so that the operating member is held at the fertilizer application position and the residual fertilizer discharge work position at the respective positions when the dead center is exceeded, and the residual fertilizer discharge work position is set. 2. The side-row fertilizer applicator according to claim 1, wherein the operating member is located at the fertilizer application position by setting the discharge hose at the storage position.