JP2000342033A - Fertilizing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the discharging and cleaning work of fertilizer remaining in a long pipe-shaped air tank 34 for sending compressed air flow to a hose joint of a fertilizing apparatus. SOLUTION: The objective fertilizing apparatus placed at the rear part of a traveling machine body 1 having a seedling transplanting apparatus at the back is composed of a feeding pipe to supply fertilizer to a planting part of the seedling transplanting apparatus, a hose joint connecting the feeding pipe at the rear end, a fertilizer-storage hopper connected to the upper face of the middle part of the hose joint and an air tank 34 having a round pipe form and supplying fertilizer-transporting air flow through a connection pipe 56 attached to the tip end of the hose joint. A plurality of long cleaning holes 125 are opened on the bottom side of the outer circumferential wall of the air tank 34 along the longitudinal direction of the tank 34 and the cleaning holes 125 are closed with detachable lids 126 made of a semi-rigid synthetic resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fertilizer application device provided in a rice transplanter.

[0002]

2. Description of the Related Art Conventionally, this type of fertilizer applicator has a horizontally long fertilizer storage hopper capable of replenishing fertilizer from a step behind a driver's seat of a traveling machine body, and a granular fertilizer from the fertilizer storage hopper. And a supply pipe for guiding the fed fertilizer to the side of the planting streak of the seedling plant by pressurized air from a blower.

For example, in Japanese Patent Application Laid-Open Nos. 9-107756 and 10-215622, in a plan view, a horizontally long oblong shape is disposed at the rear of a traveling machine body in a direction perpendicular to a traveling direction of a rice transplanter. At the lower part of the fertilizer storage hopper, a feeding part is continuously provided at each location corresponding to each seedling streak, and a hose joint that is directed forward and backward in the traveling direction is connected to a lower end of the feeding part, At the rear end of the joint, the supply pipe is connected, and the front end of each hose joint is formed at a predetermined interval on the side surface of a round pipe-shaped air tank that is disposed long along the width direction of the traveling body (perpendicular to the traveling direction). And the fertilizer in the form of powder and granules dropped from the feeding section is sent to the supply pipe side together with the compressed air.

[0004]

However, in spite of the granular fertilizer falling from the feeding portion to the hose joint, the compressed air (pressurized air) is not supplied due to the failure of the blower or the like. Even when the feeding part is stopped during the work and the supply of compressed air is stopped, the feeding roller rotates due to the vibration during running, etc., and the fallen fertilizer is passed through the hose joint into the closed pipe-shaped air tank. There was a problem of moving and accumulating. In particular, when the hose joint and the air tank are arranged at the same level, or when the height position of the air tank is lower, granular fertilizer easily accumulates in the air tank.

[0005] As a solution to this, a lid provided to be openable and closable at the end (free end) of the long pipe-shaped air tank is opened, and a cleaning brush is inserted through the opening to remove accumulated fertilizer. It is conceivable to perform cleaning by blowing out fertilizer accumulated by the blown air of the blower out of the opening. However, since the air tank is long and substantially horizontal, and when it sticks to the inner surface of the air tank, it is difficult to remove the fertilizer.

The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to provide a fertilizer that can easily perform a cleaning operation.

[0007]

According to a first aspect of the present invention, there is provided a fertilizer applicator comprising: a fertilizer device disposed on a traveling body having a seedling planter; A plurality of hose joints connected to one end of a supply pipe for feeding fertilizer at each location, a feed case connected to the upper surface of the front and rear halfway of each hose joint, and a fertilizer storage connected to the upper side of the feed case A hopper and an air tank connected to the other end of each of the hose joints to supply the fertilizer conveying wind, and an air tank extended in the width direction of the traveling body to be connected, and the air tank has a longitudinal direction. An extended cleaning hole is provided, and a lid is detachably or removably opened and closed in the cleaning hole.

[0008] The invention described in claim 2 is the first invention.
3. The fertilizer applicator according to item 1, wherein the cleaning hole is provided on the bottom side of the air tank over substantially the entire length of the air tank.
Or a plurality thereof.

[0009] On the other hand, a fertilizer applicator according to a third aspect of the present invention is a fertilizer apparatus disposed on a traveling machine body having a seedling plant.
A plurality of hose joints connected to one end of a supply pipe for feeding fertilizer for each planting portion of the seedling plant, a delivery case connected to the upper surface of the front and rear halfway portions of each hose joint, and a delivery case; A fertilizer storage hopper connected to an upper side, and an air tank connected to the other end of each of the hose joints for supplying fertilizer conveying air, and extended in the width direction of the traveling machine to be connected; Are configured to be dividable along the longitudinal direction.

[0010]

Next, an embodiment of the present invention will be described. 1 is a side view of the riding type rice transplanter, FIG. 2 is a plan view of the riding type rice transplanter, FIG. 3 is a plan view showing an arrangement state of the fertilizer application apparatus, FIG. 4 is a rear view showing an arrangement state of the fertilizer application apparatus, and FIG. Is a cross-sectional view of a main part of the power transmission unit, and FIG. 7 is a cross-sectional view of a main part of the first embodiment of the fertilizer application apparatus.

The rice transplanter according to the present embodiment is a riding type rice transplanter of a six-row planting type.
The engine 4 is mounted in the hood cover 3 at the front of the vehicle. After the power of the engine 4 is transmitted to the rear transmission case 5, the power is transmitted to the front wheels 7 via the front axle case 6 at the front of the body frame 2 and to the rear wheels 9 via the rear axle case 8 at the rear. Each is transmitted.

A driver's seat 11 is provided on the upper surface of a vehicle body cover 10 that covers the upper surface of the vehicle body frame 2 and the like. An operator sitting on the driver's seat operates a round handle 12 that stands upright from the rear end of the hood cover 3. Thus, the front wheels 7 are steered.

A seedling plant 14 is vertically movably connected via a parallel link mechanism 13 connected to the rear end of the traveling machine 1. The seedling plant 14 has a central transmission case 17 that is transmitted from a PTO shaft 15 projecting from the rear end of the transmission case 5 via a universal joint transmission shaft 16, and transmission shafts on both left and right sides of the central transmission case 17. Left and right transmission cases 18, 18 connected at appropriate intervals via a connection pipe (not shown) having the inside mounted therein, and a seedling table 19 disposed forwardly inclined such that an upper end thereof approaches a rear portion of the traveling body 1. It consists of a float 20 and the like provided on the lower surface of each of the transmission cases 17, 18, and 18 and sliding on the mud surface of the field. A roller at the upper end of the upright support column 22 is slidably supported on both the left and right sides, while the three transmission cases 17, 18,.
The lower end of the seedling mounting table 19 is slidably mounted on the lower rail 23, which is mounted between the upper surfaces of the base 18.

On the left and right sides of the rear of each of the transmission cases 17, 18, 18, a rotary type seedling planting mechanism 24 which rotates vertically is disposed.
6 moves up and down between the lower end of the seedling mounting table 19 and the field scene with the planting claw at the tip of each planting rod 26.
The seedling mat is divided into single plants and planted in a field (see FIGS. 1 and 2).

The seedling plant 14 is configured to be able to move up and down by a hydraulic cylinder 25 for raising and lowering.

Next, referring to FIGS. 1, 3 to 9,
The configuration of the first embodiment of the fertilizer application device 30 will be described.
The present embodiment of the six-row fertilizer device 30 includes a horizontally long fertilizer storage hopper 31 that is disposed at a rear portion of the traveling machine body 1 in a direction perpendicular to the traveling direction of the rice transplanter in plan view.
A (six) feeding portion 32 continuously provided at a position corresponding to each seedling attachment strip below the fertilizer storage hopper 31;
A hose joint 33 connected to a lower end of each of the feeding portions 32 and a hose joint 33 which is disposed long along the width direction (perpendicular to the traveling direction) of the traveling machine body 1;
3, a round pipe-shaped air tank 34 connected to the front end of
A flexible hose-shaped flexible hose-like supply pipe 36 made of flexible synthetic resin, which is connected to the rear end of each hose joint 33 and extends to a groove 35 provided on the left and right sides of the three floats 20 in the seedling plant 24. It is composed of

At the rear end of the body frame 2, a rear wheel 9 is provided.
A support frame for supporting the fertilizer application device 30 is fixedly connected to the upper side of the upper end. That is, a pair of left and right longitudinally connecting frames 37, 37 are connected to the rear end of the body frame 2 via the support frame 43 and the like, and the width direction of the traveling body extends across the upper surfaces of the pair of connecting frames 37, 37. , And a pair of upper and lower upper and lower horizontal frames 40 and 41 disposed above the lower and upper horizontal frames 39 and 38, respectively, penetrate the support plates 38 and 38 erected on the connection frames 37 and 37 in the horizontal direction. The left and right ends of the lower horizontal frame 39 and the pair of front and rear upper horizontal frames 40, 41 are welded to the auxiliary support plates 42, 42 to form a support frame (see FIGS. 3 and 3). 5). The lower horizontal frame 39 and the rear upper horizontal frame 41 have an L-shaped cross section, and the front upper horizontal frame 40 has a round pipe shape in cross section. The flat step portion 27 on the rear side of the driver's seat 11 in the vehicle body cover 10 allows the worker to walk to replenish the fertilizer storage hopper 31 with fertilizer and to remove residual fertilizer as described later. A workplace (scaffold) that can be used.

A turbo blower-type blower 44 is connected to the base end of the air tank 34 (the right end in the traveling direction of the traveling body 1), and the tip end of the air tank 34 (the right end in the traveling direction of the traveling body 1) is opened and closed. It is closed as much as possible (Fig. 3
And FIG. 12).

The fertilizer storage hopper 31 connects storage cases 31a for each row in a horizontal row, and adjacent storage cases communicate with each other at recesses 31b at upper end sides on both right and left sides thereof. The fertilizer is formed so that the amount of the stored fertilizer can be equalized right and left. The upper end opening of the storage case 31a for the six rows is integrally covered with a horizontally long main cover 45 which can be opened and closed, while the main lid 45 is provided for each row (or for a plurality of rows). ) Is formed above the storage case 31a, and an auxiliary lid 46 is detachably provided to the auxiliary entrance 45a (see FIGS. 4, 7, and 10). Thus, when a large amount of fertilizer is put into the six fertilizer storage hoppers 31, the main lid 45 may be opened and the entire upper surface of the fertilizer storage hopper 31 may be greatly opened to store the fertilizer for each fertilizer. When the main lid 45 is opened when replenishing the fertilizer into the case 31a or when it rains, the fertilizer storage hopper 3 is opened.
When there is a problem that the fertilizer in 1 is wet due to rain and becomes moist, etc., the auxiliary lid 46 may be opened and the fertilizer may be added every one line.

As shown in FIGS. 6 to 9, the extending portion 32 connected to the lower end portion of each of the storage cases 31a is connected to each other.
An upper case 48 having an introduction chamber 47 for introducing fertilizer in the fertilizer storage hopper 31, and a lower constricted (funnel-shaped) lower case 49 detachable from the lower surface of the upper case 48.
This constitutes a delivery case. And introduction room 4
7 and a fixed plate 51 fixed to the lower surface of the upper case 48 and rotating adjacent to the lower surface of the fixed plate 51 so as to rotate. A perforated plate 53 having a plurality of perforated plates 52 vertically penetrated at the same radius of rotation so as to be able to communicate with the slot 50, and disposed adjacent to the lower surface of the perforated plate 53;
At a phase position below the introduction chamber 47, a large radius closing the lower surface of the perforated plate 52 is provided, and at a phase position in a pre-rotational direction from the introduction chamber 47, a cutout opening the lower surface of the perforated plate 52 is provided. A bottom plate 54 having a notch (small radius portion) and fitted non-rotatably in the lower case 49, a vertical drive shaft 55 for rotating and driving the perforated plate 53 and the like are provided. The lower end of the lower case 49 is connected to a hose joint 33 for connecting the supply pipe 36 and a pipe 56 connected to the pipe-shaped air tank 34.

The introduction chamber 47 is provided on the upper surface of the upper case 48 on the side closer to the driving seat 11 of the traveling body 1 (hereinafter referred to as the front side). The upper case 4
On the upper surface of 8, a bearing 61 through which a lateral transmission shaft 58 described later penetrates, a bevel gear 59 fixed to the lateral transmission shaft 58, and a bevel gear 60 at the upper end of the vertical drive shaft 55 meshing with the bearing 61 are housed. A storage part 62 is formed adjacent to the rear of the introduction chamber 47, and the vertical drive shaft 55 is, as shown in FIG.
Backward as going downward (direction approaching seedling plant 14)
It is arranged to be inclined forward. Accordingly, the fixing plate 51 is inclined forward so that the front side is low and the rear side is high, and the communication groove 50 in the fixing plate 51 and the opening 63 at the lower end of the introduction chamber 47 for the communication groove 50 are ,
That is, it opens obliquely rearward and downward.

The vertical drive shaft 55 extends obliquely downward through the fixed plate 51, the perforated plate 53 and the bottom plate 54, and the vertical drive shaft 55 and the perforated plate 53 are engaged. It rotates together. The support plate 65 fixed to the plurality of support portions 67 protruding from the inner peripheral surface of the lower case 49 penetrates a lower portion of the vertical drive shaft 55 and has a holding coil spring 66 fitted on the outer periphery of the vertical drive shaft 55. Support the lower end. The bottom plate 54 is pressed and urged toward the perforated plate 53 at the upper end of the holding coil spring 66.

A lower end of the vertical drive shaft 55 below the support plate 65 is connected with a holder 64 so as not to fall off, and a lower end of the holder 64 is provided with a spiral fertilizer clogging prevention member 68.
Is protruded downward, and the fertilizer clogging prevention member 68 also rotates according to the rotation of the vertical drive shaft 55, so that the fertilizer adhered to the inner peripheral surface of the lower end of the lower case 49 and the inner peripheral surface of the inlet cylindrical portion 78 of the hose joint 33. Off the hose joint 33
It is configured so as to prevent clogging of feeding of fertilizer into the tank.

The front wall 49a of the lower case 49 located below the introduction chamber 47 in the upper case 48 as the feeding case approaches the lower end of the forwardly inclined vertical drive shaft as it goes down. By tilting forward as described above, a large space is formed between the lower part of the front wall 49a and the front end of the hose joint 33, and the air tank 34 can be arranged in the space (FIG. 7). And FIG. 9). The upper case 48, the lower case 49, and the hose joint 33 in the feeding case,
Are each formed of a synthetic resin material.

Further, as shown in FIG. 7, a discharge guide cylinder 70 is integrally protruded downward and forward from the lower part of the front surface of the introduction chamber 47 in the upper case 48 as the feeding case. The discharge guide tube 70 has, for example, a rectangular tube shape in cross section, and a bottom is provided with a residual fertilizer discharge port 71 having a substantially rectangular shape in plan view. The residual fertilizer discharge port 71 is opened above the front end of the air tank 34 on the front side.

An operating member 73 is projected forward and downward from the base end of an opening / closing plug 72 inserted in the discharge guide cylinder 70 so as to be movable back and forth. When the 72 is pushed in, the surface is inclined so that the surface thereof is substantially the same as the front wall of the introduction chamber 47, and the bottom of the opening / closing plug 72 is at a position for closing the residual fertilizer discharge port 71.

When the opening / closing plug 72 is retracted to the position where the stopper tube 74 fitted and fixed to the outer surface of the discharge guide tube 70 is fixed, the residual fertilizer discharge port 71 is fully opened, and the opening / closing plug 72 is opened.
It is configured such that the residual fertilizer can be smoothly guided to the residual fertilizer discharge port 71 along the surface (inclined surface) of. The discharge guide cylinder 70, the stopper cylinder 74, and the opening / closing plug 7
By replacing the locking pin 75 with the locking hole formed in the opening and closing member 2, the position of the opening and closing plug 72 can be fixed at the closed position and the open position (see FIG. 7). A discharge tube 76 made of a soft synthetic resin as a discharge guide portion is attached to the lower surface side of the discharge guide tube 70 so as to extend downwardly from the residual fertilizer discharge port 71.

As shown in FIG. 10, the discharge cylinders 76 are bent in the width direction of the traveling machine body 1 and are disposed outside the rear wheels 9 on both the left and right sides.
Furthermore, it is configured such that residual fertilizer remaining in each of the storage cases 31a can be taken out. The upper case 48 is fixed to the front and rear horizontal frames 40 and 41 by bolts via a bracket or the like, and the lower end of the lower case 49 is fitted with a rubber fitting that fits into the inlet cylinder 78 on the upper surface of the hose joint 33. It is detachably connected via a mating cap 79 (see FIG. 9).

As shown in FIG. 9, the funnel-shaped (lower constricted) lower case 49 is tilted forward similarly to the forward tilt of the vertical drive shaft 55, and is aligned with the axis of the lower cylindrical fertilizer outlet 49b. The axis of the fertilizer inlet cylinder 78 is inclined forward in the same manner as the forward inclination angle of the vertical drive shaft 55 so that the axis of the fertilizer inlet cylinder 78 in the hose joint 33 is substantially linearly aligned. On the other hand, the air jetting cylinder portion 33b, which is the front end of the hose joint 33 connected to the connecting pipe 56 connected to the side surface of the air tank 34, is formed so as to become tapered toward the downstream side of air conveyance. And a confluence portion 33 between the air ejection tube portion 33b and the lower end of the fertilizer inlet tube portion 78.
At a, the fed fertilizer merges with the compressed air and is sent to the transport cylinder 33c to the supply pipe 36 on the downstream side. In this case, the pressure of the air decreases and the air velocity increases toward the junction 33a due to the tapered shape of the air jetting cylinder 33b, so that the fertilizer that has dropped into the junction 33a is quickly supplied. It can be conveyed with air in the direction of the pipe 36.

On the other hand, the intersection wall between the lower end wall of the fertilizer inlet cylinder 78 and the upper wall of the air ejection cylinder 33b is formed with a nose 33d which is inclined obliquely downward toward the air transport downstream.
The air (compressed air) sent from the air jetting cylinder 33b blows upward at the junction 33a, and the fertilizer in the fertilizer inlet cylinder 78 does not blow back upward. It is configured as follows.

A holder 64 is connected to the lower end of the vertical drive shaft 55 below the support plate 65 so as not to fall off, and a spiral axis-shaped fertilizer clogging prevention member 68 projects downward from the lower end of the holder 64. The fertilizer clogging prevention member 68
Is arranged so that the lower end faces the junction 33a of the hose joint 33 (see FIG. 9).

As described above, since the fertilizer outlet 49b at the lower end of the lower case 49 and the fertilizer inlet cylindrical portion 78 on the upper surface of the hose joint 33 are substantially straight, the fertilizer falls smoothly even if inclined. Further, the fertilizer clogging prevention member 68 can penetrate deeply into the confluence portion 33a, and the fertilizer clogging prevention member 6 according to the rotation of the vertical drive shaft 55
8 also rotates from the fertilizer outlet 49b to the lower end of the fertilizer inlet cylinder 78, so that the fertilizer adhering to the inner peripheral surface of the lower end of the lower case 49 and the inner peripheral surface of the fertilizer inlet cylinder 78 of the hose joint 33 is prevented from clogging. It can be removed by the member 68, and the clogging of the fertilizer at the junction 33a of the hose joint 33 can be reliably prevented.

Next, a description will be given of a power transmission mechanism for the feeding portions 32 arranged in a horizontal line with reference to FIGS. A chain sprocket 81 fixed to an intermediate portion of the PTO shaft 15 projecting rearward from the rear end of the transmission case 5 and a rear support 86 of the body frame 2
Chain sprocket 82 in bearing case 83 fixed to
The power is transmitted to the chain 84 by being wound around the chain 84, and further transmitted to the transmission shaft 85 at a laterally outer position in the bearing case 83. Driven bevel gear 8 meshing with a bevel gear 87 at the end of the transmission shaft 85
After the power is transmitted to the lower vertical transmission shaft 89 through the transmission shaft 8, the power is transmitted to the upper vertical transmission shaft 91 via a ring cone type continuously variable transmission mechanism 90 provided at the upper end thereof. Ring cone type continuously variable transmission 9
5, an input disk 92 that rotates integrally with the input-side lower vertical transmission shaft 89 and an output-side upper vertical transmission shaft 9 as shown in FIG.
1, an output disc 93 rotatably provided on the first disc 9 and both discs 9
A plurality of planetary cones 94 (a group of the planetary cones 94 are arranged vertically rotatably between
And a non-rotating transmission ring 95 that slidably contacts the conical surface of the planetary cone 94, and these are accommodated in a transmission case 96. On the guide portion at the rear end of the transmission case 96, there is provided a knob 9 for adjusting the number of rotations (and thus the amount of fertilizer fed per unit time)
7, the rear end of a shifter 99 is screwed into the adjusting screw 98, and the shifter 99 is engaged and connected to the speed change ring 95.
The shifter 99 is moved up and down in FIG. 5 in response to the reverse rotation to change the position by changing the position of the conical surface of the planetary cone 94 against which the transmission ring 95 is pressed.

The gear shaft 100, which is separated from the middle part of the lateral transmission shaft 58 passing through the plurality of feeding portions 32 and connected with pins, is disposed in the bearing case 101, and is disposed in the bearing case 101.
The power is transmitted by meshing the bevel gear 102 provided at the upper end with the bevel gear 103 at the upper end of the upper vertical transmission shaft 91 on the output side (see FIG. 6).

The storage section 62 in each feeding section 32 is provided.
The lower surface of the bevel gear 60 is provided with a locking clutch 104 which is vertically slidably fitted on the vertical drive shaft 55 on the lower surface side. The power transmission is interrupted by disengaging from the clutch pawl. A clutch shifter 105 that lowers the stop clutch 104 against the urging spring 106 is connected to a lever 107 outside the upper case 48. And seedling mounting table 1
9, a unit clutch lever 109 (see FIG. 1) for turning on and off the drive of the seedling planting mechanism 24 for each planting line, and a lever at the position of the corresponding planting line. 107 is connected by a wire 108, and when the driving of the planting streak is stopped as in the seedling planting operation at the ridge, the fertilizing work of the streak is also interrupted.

Next, referring to FIGS. 11 and 12,
The configuration of the pipe-shaped air tank 34 will be described in detail. As shown in FIG. 11 and FIG.
Of the portion where the front end of the continuous pipe 56 connected to the front end of the continuous pipe 56 is inserted into the air tank 34, a cutout recess 56a is provided on the upstream side of the compressed air so as to receive the compressed air. Among them, a part of the cross section of the hose joint 33 is blocked by the wall surface 56b for receiving the wind protruding downstream of the compressed air, thereby facilitating the introduction of the compressed air to the hose joint 34 (arrow in FIG. 12). Indicates the feed direction of the compressed air).

In this embodiment, a long cleaning hole 125 is formed in a part of the outer peripheral wall of the air tank 34 along the longitudinal direction (axial direction), and the cleaning hole 125 is removably elastically removable with respect to each cleaning hole 125. The cleaning hole 125 is preferably provided on the lower surface side (bottom surface side) of the outer peripheral wall of the air tank 34. Further, it is preferable that the cleaning hole 125 extends from the upstream side to the downstream side with respect to the place where the respective connecting pipes 56 are arranged (see FIG. 6). As shown in FIG. 12, the inner surface of the lid 126 has an annular projection 126a which fits tightly on the edge of the cleaning hole 125 and is in close contact therewith.
And 126b that engages with the inner surface of the outer peripheral wall.

Since the granular fertilizer which blows back from the hose joint 33 side usually accumulates on the bottom side of the air tank 34, if a cleaning hole 125 is formed on the side close to the location, the location can be reduced. Fertilizer often sticks to the inner surface of the lid 126 to be closed, and the inner surface of the removed lid 126 may be cleaned with a brush (not shown) or the like. Cleaning holes 125
Then, a brush may be inserted to clean the inner surface of the outer peripheral wall of the air tank 34.

This cleaning hole 125 may be formed in one long hole extending over substantially the entire length of the air tank 34, or the cleaning hole 125 may be formed in the outer peripheral wall surface of the air tank 34 on the side surface away from the bottom. It is possible to remove the fertilizer in the air tank 34.

In the embodiment shown in FIG.
A cylindrical lid 127 for opening and closing the portion is fitted on the outer peripheral surface of the round pipe-shaped air tank 34 so as to be rotatable around its axis, and is formed in the lid 127. It is configured so that it can be rotated by holding the photographing 127b protruding from the outer peripheral surface of the lid 127 at a position where the discharge hole 127a and the cleaning hole 125 coincide with each other and at a position closed by the lid 127. It is. Although not shown, it is desirable to provide a lock mechanism that can hold the position of the lid 127 at least at the position where the cleaning hole 125 is closed.

In the embodiment shown in FIG.
4 is constituted by a fixing member 129 having a semi-cylindrical cross section on the side to which the continuous pipe 56 is attached, and a semi-cylindrical lid 130, and extending over substantially the entire length of the air tank 34 or The lid 130 is configured to be partially removable. Therefore, locking flanges 131 and 132 are provided on both ends of the fixing member 129 and the lid 130 in the longitudinal direction so as to fit and lock each other, and the pivoting pins 134 of the bracket 133 on the side of the lid 130 pivotably pivot. The distal end of a ring 136 made of a spring bar whose base end is pivotally attached to a middle part of the attached lever 135 is engaged with a hook body 137 on the outer surface of the fixing member 129, and the lever 135 is connected with a solid line in FIG. When moving from the state to the two-dot chain line state, the base end of the ring 136 goes beyond the dead point of the pivot pin 134 and maintains the locked state. In this locked state, the locking flanges 131, 1
A sealing material is interposed so that air does not leak at 32 places or the like. According to this embodiment, the lid 1
By removing 30 from the fixed portion 129, the inner surface of the air tank 34 can be largely opened, and cleaning can be extremely easily performed.

According to the above-described configuration, at the time of seedling planting operation, fertilizer is put in the fertilizer storage hopper 31 in advance, and each float 20 of the seedling planting device 14 is put on the mud surface while the traveling machine 1 is advanced in the field. PTO shaft 15
Is driven to transmit power to the seedling planting apparatus 14, and the planting mechanism 24 is driven to split the seedling mat from the lower end of the seedling mounting table 19 and plant it in the field. At this time, the rotational force is transmitted from the PTO shaft 15 to the upper vertical transmission shaft 91 via the ring cone type continuously variable transmission mechanism 90 and the like, and all of the torque is transmitted via the horizontal transmission shaft 58 (six sections).
The vertical drive shaft 55 of the feeding portion 32 rotates at a predetermined speed, so that the granular fertilizer in each case 31 a
Then, it falls by an appropriate amount per unit time below the lower case 49 via the perforated plate 53 and is discharged to the inlet cylinder 78 which is opened in the middle of the upper surface of the hose joint 33 in the front-rear direction. On the other hand, the compressed air from the blower 44 is blown rearward in the hose joint 33 through the air tank 34 and the continuous pipe 56, so that the fertilizer discharged into the inlet cylinder 78 is supplied to the supply pipe 36 together with the compressed air. From the slotter 35 to the side of the planting strip.

After the operation, if fertilizer remains in each case 31a of the fertilizer storage hopper 31, as shown in FIG. 10, a collection bag 77 is placed outside the rear wheels 9, 9 and each locking pin 75 Is removed, and the open / close stopper 72 of the discharge guide cylinder 70 is pulled forward to open the residual fertilizer discharge port 71. The fertilizer accumulated in the case 31a and the introduction chamber 47 is substantially vertical due to its own weight. Quickly discharged to the entrance of
It can be discharged to the collection bag 77.

In the embodiment shown in FIG. 15, the front wall 47a of the introduction chamber 47 communicating with the lower end of each case 31a in the fertilizer storage hopper 31 is inclined forward and obliquely downward.
A residual fertilizer discharge port 110 is formed in the front wall 47a and normally closed with an opening / closing plug 111.

Also in this embodiment, the air tank 34
The configuration of the cleaning hole and the lid that is detachable or openable and closable with respect to this is the same as that of the above-described embodiment, and the other configurations are also the same. The same reference numerals are given and the detailed description is omitted.

In each of the above embodiments, each case 31a of the fertilizer storage hopper 31 receives a fertilizer sensor 120 for detecting the presence or absence of fertilizer and a mass of fertilizer put in from above, and receives fine particles. A receiving net 121 made of a synthetic resin for powdering is provided. Further, the upper case 48 and the lower case 49 as a feeding case are detachably connected by a clamp fitting 122.

[0047]

As can be understood from the above description, the fertilizer applicator according to the first aspect of the present invention includes a fertilizer applicator disposed on a traveling machine body equipped with a seedling transplanter for each planting portion of the seedling transplanter. A plurality of hose joints connected to one end of a supply pipe for feeding fertilizer, a delivery case connected to the upper surface of the front and rear halfway of each hose joint, and a fertilizer storage hopper connected to the upper side of the delivery case. An air tank connected to the other end of each of the hose joints for supplying the fertilizer conveying wind, and an air tank extending in the width direction of the traveling machine to be connected, and the air tank has a cleaning extending in a longitudinal direction thereof. A hole is formed, and a lid is detachably or removably attached to the cleaning hole.

Therefore, even if powdery or granular fertilizer is stuck on an arbitrary inner surface in the middle of a long air tank, the lid for closing the cleaning hole extending in the longitudinal direction of the air tank is opened or removed to open. There is an effect that cleaning for removing fertilizer in the air tank from the cleaning hole with a brush or the like can be easily performed.

Further, the invention described in claim 2 is the same as that in claim 1
3. The fertilizer applicator according to item 1, wherein the cleaning hole is provided on the bottom side of the air tank over substantially the entire length of the air tank.
Since the fertilizer tends to stick or accumulate on the bottom of the inner surface of the air tank, most of the fertilizer can be removed by removing the lid by providing a cleaning hole at the location. Since it is attached to the inner surface of the body, the removal of the fertilizer from the air tank becomes extremely easy.

On the other hand, the fertilizing apparatus according to the third aspect of the present invention includes a fertilizing apparatus disposed on a traveling machine body having a seedling planting apparatus.
A plurality of hose joints connected to one end of a supply pipe for feeding fertilizer for each planting portion of the seedling plant, a delivery case connected to the upper surface of the front and rear halfway portions of each hose joint, and a delivery case; A fertilizer storage hopper connected to an upper side, and an air tank connected to the other end of each of the hose joints for supplying fertilizer conveying air, and extended in the width direction of the traveling machine to be connected; Are configured to be dividable along the longitudinal direction.

Therefore, when the fertilizer in the air tank is removed, if the air tank is divided, the inner surface of the air tank can be largely opened and the cleaning can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a rice transplanter.

FIG. 2 is a schematic plan view of the rice transplanter.

FIG. 3 is a schematic plan view of a support frame for supporting the fertilizer application device.

FIG. 4 is a rear view of the arrangement of the fertilizer application device.

FIG. 5 is a side view of a power transmission mechanism for the fertilizer application device.

FIG. 6 is a cross-sectional view of a main part of a rear surface of a power transmission mechanism for the fertilizer application device.

FIG. 7 is a side sectional view of the fertilizer applicator.

FIG. 8 is an exploded perspective view of components of a feeding portion.

FIG. 9 is an enlarged cross-sectional view of a main part of the feeding section.

FIG. 10 is an explanatory view showing a discharge route of the residual fertilizer as viewed from the front of the traveling body.

FIG. 11 is a side sectional view of a cleaning hole and a lid of an air tank.

FIG. 12 is a diagram showing a cleaning hole and a lid on a lower surface of the air tank.

FIG. 13 is a side sectional view showing a second embodiment of a cleaning hole and a lid of an air tank.

FIG. 14 is a side sectional view of an air tank that can be divided.

FIG. 15 is a side sectional view showing another embodiment of the fertilizer applicator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running body 8 Front wheel 9 Rear wheel 11 Driving seat 14 Seedling plant 19 Seedling table 30 Fertilizer 31 Fertilizer storage hopper 32 Feeding part 33 Hose joint 34 Air tank 36 Supply pipe 47 Introducing chamber 53 Plate 55 Vertical drive shaft 56 Consecutive pipe to hose joint 70 Discharge guide cylinder 71 Residual fertilizer discharge port 72 Opening and closing plug 73 Operating body 76 Discharge cylinder 125 Cleaning hole 126 Lid

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuichi Ogawa 1-32 Chaya-cho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. F-term (reference) 2B052 BC05 BC08 BC16 DC04 DC16 EA02 EA04 EA15 EB02 EC03 EC06 EC07 EC19 ED08 2B060 BA04 BA07 BA09 BB06 BB07 BB10

Claims (3)

[Claims] 1. A fertilizer application device disposed on a traveling machine equipped with a seedling planting device, a plurality of hose joints connected to one end of a supply pipe for feeding fertilizer for each planting portion of the seedling planting device, A feeding case connected to the upper surface of the front and rear halfway of the hose joint, a fertilizer storage hopper connected to the upper side of the feeding case, and connected to supply the other end of each of the hose joints with a fertilizer conveying wind, and An air tank extended in the width direction of the traveling machine body for connection, and a cleaning hole extending in the longitudinal direction of the air tank was formed in the air tank, and a lid was detachably or removably attached to the cleaning hole. A fertilizer application device, characterized in that: 2. The cleaning hole is provided on a bottom side of an air tank.
The fertilizer application device according to claim 1, wherein one or a plurality of the air tanks are formed over substantially the entire length area of the air tank. 3. A fertilizer application device disposed on a traveling machine body having a seedling planting device, a plurality of hose joints connected to one end of a supply pipe for feeding fertilizer for each planting portion of the seedling planting device, A feeding case connected to the upper surface of the front and rear halfway of the hose joint, a fertilizer storage hopper connected to the upper side of the feeding case, and connected to supply the other end of each of the hose joints with a fertilizer conveying wind, and A fertilizer apparatus comprising: an air tank extending in a lateral width direction of a traveling body to be connected; and the air tank being configured to be dividable along a longitudinal direction thereof.