JP2000354404A - Rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the rusting by a spilt fertilizer when supplementing a granular or a powdery fertilizer to a fertilize storage hopper of a fertilizing apparatus and facilitate cleaning operations. SOLUTION: This rice transplanter is obtained by arranging a delivery part 32, a hose joint 33 for connecting a feed pipe 36 for feeding the fertilizer to a planting part of a seedling planting device 14 to the rear end thereof and an oblong air tank 34 installed connectedly to the front end of the hose joint 33 under an oblong fertilizer storage hopper 31 in a fertilizing apparatus 30 having the seedling planting device 14 at the rear thereof and arranged at the rear of a mobile machine body 1, arranging oblong cover units 130a and 130b having the elasticity and the top mounted on the front and rear surfaces of the fertilizer storage hopper 31 in a spread out state so that the lower ends thereof are spread to the front and rear and forming the lower ends of the respective cover units 130a and 130b in an upwardly opened trough part 131. A fertilizer spilt when opening the top of the fertilizer storage hopper 31 and supplementing the fertilizer is collected from the surfaces of the cover units 130a and 130b into the trough part 131.

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 rice transplanter in which a fertilizer device is provided at a rear portion of a traveling machine body and a seedling plant is disposed behind the fertilizer device.

[0002]

2. Description of the Related Art Conventionally, a fertilizer application device of this type has a horizontally long fertilizer storage hopper capable of replenishing fertilizer from a step portion behind a driver's seat of a traveling machine body, and a granular powdery hopper from the fertilizer storage hopper. It consisted of a feeding section for feeding the fertilizer, and a supply pipe for guiding the fed fertilizer to the side of the planting streak of the seedling plant by the compressed air from the 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 granules dropped from the feeding section is sent to the supply pipe side together with the compressed air.

[0004] At the same time as the operation of planting seedlings in the field, fertilizer is applied to the soil beside each planting streak.

[0005]

When replenishing granular fertilizer to the fertilizer storage hopper before or during the operation, the lid on the upper surface of the fertilizer storage hopper is opened and the fertilizer bag is removed from the fertilizer bag. When replenishing the fertilizer, the fertilizer spilled from the fertilizer bag may adhere to parts below the fertilizer storage hopper such as the feeding part, and if left as it is, there is a problem that the parts to which the fertilizer adheres rust. Was.

In order to prevent this, if cleaning is performed to remove the fertilizer adhering to the parts, cleaning work is performed over a wide area, and granular fertilizer enters into one corner of the parts. There was a problem that it became difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and it is possible to prevent spilled fertilizer from adhering to parts of a fertilizer applicator, and to easily clean spilled fertilizer. It is an object of the present invention to provide a rice transplanter to which such a cover body is attached.

[0008]

According to a first aspect of the present invention, there is provided a rice transplanter, comprising: In the lower part of the fertilizer storage hopper that is long in the width direction, a feeding unit for feeding out fertilizer for each planting portion of the seedling plant is provided at appropriate intervals in the width direction of the traveling machine body, and the fertilizer storage hopper is On one or both of the front side and the rear side, a horizontally long cover body is provided so as to cover at least the upper side of the feeding portion, and the cover body has a lower end separated from the fertilizer storage hopper, and Are formed in a divergent shape in a side view.

The invention described in claim 2 is the first invention.
In the rice transplanter described in (1), a gutter portion formed along the width direction of the traveling machine body is provided at a lower end of the cover body.

According to a third aspect of the present invention, in the rice transplanter according to the first or second aspect, the gutter portion is located at a high position at the center in the width direction of the traveling body, and is disposed in the width direction of the traveling body. It is formed so as to be inclined downward toward the outside.

Further, according to a fourth aspect of the present invention, in the rice transplanter according to any one of the first to third aspects, the left and right ends of the cover body disposed on the front side of the fertilizer storage hopper are provided. This is located outside the left and right step portions of the traveling body.

According to a fifth aspect of the present invention, there is provided the rice transplanter according to any one of the first to fourth aspects, wherein the fertilizer applicator is connected to a front end of an air tank for supplying a fertilizer conveying wind. A hose joint connected to the rear end of a supply pipe for feeding fertilizer to the planting part of the seedling plant, a feeding part connected to the upper surface of the middle part before and after the hose joint, and connected to an upper side of the feeding part. It comprises a fertilizer storage hopper, and the pair of front and rear cover members cover at least the feeding portion, the air tank, and the hose joint.

[0013]

Next, an embodiment of the present invention will be described. 1 is a side view of a riding type rice transplanter, FIG. 4 is a rear view showing an arrangement state of a fertilizer and a cover body, FIG. 7 is a sectional side view of a main part of the fertilizer, and FIG. 10 is an arrangement state of a fertilizer and a cover body. FIG. 10 is a perspective view showing an arrangement state of the fertilizer application device and the cover body.

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 an upper surface of a vehicle body cover 10 that covers an 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.

A rotary type seedling planting mechanism 24 that rotates up and down is disposed on both left and right sides of the rear part of each of the transmission cases 17, 18, 18 and the planting rod 2 in each seedling planting mechanism 24.
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, the configuration of the fertilizer applicator 30 will be described with reference to FIGS. The present embodiment of the six-row fertilizer device 30 includes a horizontally long fertilizer storage hopper 31 disposed at the rear of the traveling machine body 1 in a direction perpendicular to the traveling direction of the rice transplanter in plan view; At the lower part of the hopper 31, (six) feeding portions 32 continuously provided for each of the locations corresponding to the seedling attachment strips, and the respective feeding portions 3
A hose joint 33 communicated with the lower end of the hose body 2 and a round pipe-shaped air tank 34 which is arranged long along the lateral width direction (perpendicular to the traveling direction) of the traveling body 1 and is connected to the front end of each hose joint 33. And a hose-shaped supply pipe 36 made of a flexible soft synthetic resin which is connected to the rear end of each hose joint 33 and extends to a groove 35 provided on both left and right sides of the three floats 20 in the seedling plant 24. And so on.

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 an operator to walk to replenish the fertilizer storage hopper 31 with fertilizer or to clean the spilled fertilizer as described later. Workplace (scaffold).

A turbo blower-type blower 44 is connected to the base end (the right end in the traveling direction of the traveling body 1) of the air tank 34, and a lid (not shown) is attached to the front end of the air tank 34 (the right end in the traveling direction of the traveling body 1). It is closed so that it can be opened and closed.

The fertilizer storage hopper 31 connects storage cases 31a made of transparent synthetic resin for each row in a horizontal row, and the storage cases 31b adjacent to each other at the upper end recesses 31b on both left and right sides. They are in communication with each other and are formed so that the amount of stored fertilizer can be equalized to the left and right. 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.
An auxiliary entrance 45a is formed to open above the sub-a, and an auxiliary lid 46 is detachably provided to the auxiliary entrance 45a (see FIGS. 4, 7, 10, and 11). 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. In addition, as shown in FIG.
Open the auxiliary entrance 45b communicating with the place of ~ 3 articles,
An auxiliary lid 46a for closing the portion may be detachably provided.

As shown in FIGS. 6 to 9, the extending portion 32 connected to the lower end of each of the storage cases 31a is connected to
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 non-rotatably fitted in the lower case 49, a vertical drive shaft 55 for driving the perforated plate 53 to rotate, and the like are provided. Lower case 49
A hose joint 33 for connecting the supply pipe 36 and a pipe 56 connected to the pipe-shaped air tank 34 is connected to a lower end of the hose.

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 to a holder 64 so as not to fall off, and a lower end of the holder 64 is provided with a fertilizer clogging prevention member 68 made of a spiral spring or the like. The lower end of the fertilizer clogging prevention member 68 is made to reach the lower part of the inlet tube portion 78 of the hose joint 33 so as to project downward. Then, the fertilizer clogging prevention member 68 is rotated in accordance with the rotation of the vertical drive shaft 55, and the fertilizer attached 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 is wiped off, The fertilizer is prevented from being clogged in the hose joint 33 when being fed.

The lower case 4 which is located below the introduction chamber 47 in the upper case 48 as the feeding case.
9 by tilting the front wall 49a forward so as to approach the lower end of the forwardly inclined vertical drive shaft as going downward.
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 is arranged in the space (FIG. 7).
And FIG. 9). Upper case 4 in the feeding case
8, the lower case 49 and the hose joint 33 are each formed of a synthetic resin material.

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 body 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 a 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 FIGS. 10 and 11, these discharge cylinders 76 are bent in the width direction of the traveling machine body 1 and are collected into collection bags (or fertilizer bags) 77 disposed outside the rear wheels 9 on the left and right sides. It is configured so 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).

The lower constricted (funnel-shaped) lower case 49
Is tilted forward similarly to the forward tilt of the vertical drive shaft 55,
Extension of lower end of vertical drive shaft 55 (fertilizer clogging prevention member 68)
Of the hose joint 33 so as to linearly face the inlet cylindrical portion 78 of the hose joint 33,
The axis of the inlet cylindrical portion 78 is tilted forward at the same angle as the forward tilt angle of the vertical drive shaft 55.

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.

With the above 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 placed 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.

Next, the front and rear surfaces of the fertilizer storage hopper 31, that is, the front and rear surfaces of the transparent synthetic resin storage case 31a connected in a horizontal row, are made of a flexible or elastic synthetic resin. Plate-shaped or sheet-shaped cover body 130
a and 13b are mounted so as to become wider toward the bottom as viewed from the side (see FIGS. 1 and 7). In this case, the base ends (upper ends) of the cover bodies 130a and 13b are detachably attached to the outer surfaces of the front and rear walls of the storage case 31a with screws or hook-and-loop fasteners. Each of the cover bodies 130a and 13b is a horizontally long fertilizer storage hopper 31.
The cover body 130a, 13b is integrally formed with an arc-shaped gutter portion 131 which is open upward over the entire length at a lower end of each of the cover bodies 130a, 13b so as to extend over substantially the entire length of the traveling body 1.

With this configuration, the traveling body 1
When viewed from the side, the front and rear covers 130a, 13b, the upper case 48 and the lower case 49 disposed below the fertilizer storage hopper 31, the feeding portion 32 including the introduction chamber 47, the horizontal transmission shaft 58, the PTO shaft Since the power transmission mechanism from above, the hose joint 33, the upper part of the horizontally long air tank 34, and the like can be covered over a wide range in the front-rear direction, when replenishing granular fertilizer from the fertilizer bag into each of the storage cases 31a. In addition, even if the fertilizer spills out, it does not adhere to the surface of each component, and the spilled fertilizer falls down along the outer surface of each of the cover members a and 13b and the gutter portion 13
Received at 1.

Further, each of the gutter sections 131 is connected to the traveling body 1.
By forming the lower ends of the cover members 130a and 13b in an inclined shape so as to lower as going toward the outside in the width direction at a high position at the center of the width of the cover (see FIGS. 4, 10, 11, and 12). If the granular fertilizer received in each gutter 131 is cleaned along the longitudinal direction of the gutter 131 with a brush or the like (not shown), the fertilizer that has spilled can be collected and collected at the lower end of the gutter 131 very easily. Can be cleaned.

The lower ends (gutter portions 13) of the right and left sides of the cover body 130a mounted on the front side of the fertilizer storage hopper 31 are also provided.
The left and right sides of the gutter portion 1 are located on the left and right sides of the step portion 27 extending to the left and right sides behind the driver's seat 11, so that the gutter portion 131 is cleaned with a brush along the longitudinal direction. Then, the fertilizer collected at the lower end of the gutter portion 131 can be easily received by a collection box (not shown) outside the step portion 27, and no portion of the traveling machine body 1 is contaminated.

When the main lid 45 on the upper surface of the fertilizer storage hopper 131 rotates upward and opens rearward, the cover body 131 is provided only on the front side of the fertilizer storage hopper 31.
The cover 131b may be provided only on the rear side of the fertilizer storage hopper 31 when the main lid 45 is opened forward and upward.

FIG. 13 shows a rain cover 133 serving as an umbrella when the main lid 45 of the fertilizer storage hopper 31 is opened.
Is formed on a free end side (front end) of a main lid 45 that opens upward through a main hinge 134 at a rear end side of the storage case 31a at a rear end side of the storage case 31a. Attach the end. In addition, rain cover 1
The shape of the main cover 45 in plan view is substantially the same size and shape as the shape of the main lid 45 in plan view.
3 is rotatable approximately 270 degrees.

When the main cover 45 is closed, the rain cover 13 is set so as to be substantially parallel to the upper surface of the main cover 45.
3 is folded and placed. When replenishing fertilizer when it rains, first, the driver's seat 11 is tilted forward,
Next, after the rain cover 133 is manually opened so as to face downward to the left in FIG. 13, the main cover 45 is opened upward and the main cover 45 is set substantially vertically, as shown by a solid line in FIG. In addition, the lower surface on the base end side of the rain cover 133 is in contact with the front edge of the main lid 45 and does not go down any further, so that the upper surface of the opened fertilizer storage hopper 31 has a large space on the rain cover 133. So that the opening of the fertilizer bag 136 is connected to the fertilizer storage hopper 31.
The fertilizer replenishment work can be performed after the fertilizer is applied to the opening on the upper surface of the fertilizer. Even when it is raining, the fertilizer storage hopper 3 can be used.
Since no rain is transferred from the opening on the upper surface of 1, the fertilizer inside can be prevented from getting wet and clumping.

When the rain cover 133 is not used, the main cover 45 may be opened while the rain cover 133 is on the main cover 45.

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 lump of fertilizer put in from above, and forms a fine granular powder. A receiving net 121 made of a synthetic resin 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, in the rice transplanter according to the first aspect of the present invention, the fertilizer applicator in which the seedling plant is disposed at the rear of the traveling machine body provided at the rear is provided in the width direction of the traveling machine body. In the lower part of the long fertilizer storage hopper, a feeding portion for feeding out fertilizer for each planting portion of the seedling plant is provided at appropriate intervals in the width direction of the traveling machine body, and the front side of the fertilizer storage hopper And at least one of the rear side and the rear side is provided with a horizontally long cover body that covers at least the upper side of the feeding part, and the cover body has a side surface of the traveling machine body such that a lower end thereof is separated from the fertilizer storage hopper. It is formed in a divergent shape when viewed.

With this configuration, when replenishing fertilizer into the upper opening of the fertilizer storage hopper, even if granular fertilizer falls from the fertilizer storage hopper, the fertilizer can be received by the cover body. The spilled fertilizer does not adhere to the parts such as the lower pay-out portion that is covered and covered, and the rust of the parts is reliably prevented. Further, since the cover body is arranged in a divergent shape so that the lower end thereof is separated from the fertilizer storage hopper in the front-rear direction, there is an effect that the lower part of the fertilizer storage hopper can be protected over a wide range.

Further, the invention described in claim 2 is the same as that in claim 1
In the rice transplanter described in the above, since the bottom of the cover body is provided with a gutter portion formed along the width direction of the traveling body, the fertilizer that has fallen on the surface of each cover body, It is easy to clean the cover body immediately after gathering in the gutter portion, and it is also effective to collect the fertilizer easily by cleaning along the gutter portion.

According to a third aspect of the present invention, in the rice transplanter according to the first or second aspect, the gutter portion is located at a high position on the center side in the width direction of the traveling body, and is arranged in the width direction of the traveling body. It is formed so as to be inclined downward toward the outside.

As described above, since the gutter portion is inclined downward toward the outside in the width direction of the traveling body, the fertilizer that has fallen on each gutter portion is moved to the outside of the traveling body along the gutter portion. Is extremely easy to clean and collect fertilizer.

Furthermore, the invention according to claim 4 is the rice transplanter according to any one of claims 1 to 3, wherein the left and right ends of the cover body disposed on the front side of the fertilizer storage hopper are provided. Since it is located outside the left and right step portions of the traveling body, various parts can be protected from the adhesion of fertilizer over a wide range in the longitudinal direction of the fertilizer application and the width direction of the traveling body. When the cover has a gutter at the lower end, the left and right sides of the gutter are located outside the step, so that when the fertilizer collected in the gutter is swept out, the fertilizer is automatically dropped to the outside of the traveling machine and the rice planting is performed. This has the effect of reliably preventing fertilizer from adhering to machine parts.

According to a fifth aspect of the present invention, there is provided the rice transplanter according to any one of the first to fourth aspects, wherein the fertilizer is connected to an air tank for supplying a fertilizer conveying wind to a front end of the rice transplanter. A hose joint connected to the rear end of a supply pipe for feeding fertilizer to the planting part of the seedling plant, a feeding part connected to the upper surface of the middle part before and after the hose joint, and connected to an upper side of the feeding part. It comprises a fertilizer storage hopper, and the pair of front and rear cover members cover at least the feeding portion, the air tank, and the hose joint.

With this configuration, the cover body can prevent the fertilizer from adhering to the above-mentioned many parts under the fertilizer storage hopper, and can eliminate the trouble of cleaning and the rust of each part. It has the effect of being able to.

[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 a fertilizer application device and a cover body.

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 diagram showing the cover body on the front side of the fertilizer storage hopper as viewed from the front of the traveling machine body.

FIG. 11 is a perspective view of a fertilizer storage hopper and a cover body.

FIG. 12 is a perspective view showing the cover body on the front side of the fertilizer storage hopper as viewed from the right side of the traveling machine body.

FIG. 13 is a side view showing a use state of the rain cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running body 8 Front wheel 9 Rear wheel 11 Driver seat 14 Seedling plant 19 Seedling stand 27 Step part 30 Fertilizer device 31 Fertilizer storage hopper 32 Feeding part 33 Hose joint 34 Air tank 36 Supply pipe 47 Introducing chamber 48 Upper case 49 Lower case 130a, 130b Cover 131 Gutter

Claims (5)

[Claims] 1. A fertilizer application device, which is provided at the rear of a traveling body provided with a seedling planting device at the rear thereof, is provided with a fertilizer for each planting portion of the seedling planting device below a fertilizer storage hopper that is long in the width direction of the traveling machine body. The feeding unit for feeding is configured so as to be provided at appropriate intervals in the width direction of the traveling body, and at least one of the front side and the rear side of the fertilizer storage hopper covers at least the upper side of the feeding unit. A rice transplanter characterized by having a horizontally elongated cover body, wherein the cover body is formed so as to have a divergent shape in a side view of a traveling machine body such that a lower end thereof is separated from a fertilizer storage hopper. 2. The rice transplanter according to claim 1, wherein a gutter portion formed along a width direction of the traveling body is provided at a lower end of the cover body. 3. The vehicle according to claim 1, wherein the gutter portion is formed so as to be inclined downward toward the outside in the width direction of the traveling body at a high position on the center side in the width direction of the traveling body. 2. The rice transplanter according to any one of 2. 4. The vehicle body according to claim 1, wherein left and right ends of the cover body disposed on the front side of the fertilizer storage hopper are located outside step portions on both right and left sides of the traveling machine body. Rice transplanter according to any one of the above. 5. A hose joint in which the air tank for supplying fertilizer conveying air is connected to a front end of the fertilizer application device, and a supply pipe for feeding fertilizer to a planting portion of the seedling planting device is connected to a rear end thereof. A feeding part connected to the upper surface of the front and rear halfway of the joint, and a fertilizer storage hopper connected to the upper side of the feeding part, and the pair of front and rear covers, at least the feeding part, the air tank and the hose joint. The rice transplanter according to claim 1, wherein the rice transplanter is configured to cover the rice transplanter.