JP2004298118A - Paddy field working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paddy field working machine in which an outlet part of a fertilizer discharge pipe can be installed in a part capable of readily carrying out discharge operation and further such a trouble that the intermediate part of the fertilizer discharge pipe is caught in rear wheels can be avoided. <P>SOLUTION: A fertilizer hopper 22 in which a feed out device 21 equipped with a residual fertilizer discharge port 38 is installed in the lower part is loaded in the rear of a self-traveling machine body 4 equipped with front wheels 1, rear wheels 2 and a riding and driving part 3, and a guide 53 for bending and guiding a flexible fertilizer discharging pipe 45 connected to the residual fertilizer discharge port 38 so that the intermediate part of a rear vehicle shaft 2a does not come into contact with the vehicle shaft 2a by causing hanging down of the intermediate part and the outlet part is supported on a mounting and supporting part 50 installed at left and right ends of a riding step 9 of the self-traveling machine body 4 is installed in a machine body frame F of the self-traveling machine body 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paddy field working machine such as a rice transplanter having a fertilizer hopper equipped with a feeding device with a residual fertilizer discharge port at a lower portion of a self-propelled body including a front wheel, a rear wheel, and a boarding operation unit. About.
[0002]
[Prior art]
Conventionally, a flexible fertilizer discharge pipe is connected to the residual fertilizer discharge port, while a bucket or the like is located below the outlet of the fertilizer discharge pipe, and the fertilizer remaining in the fertilizer hopper is discharged to the bucket or the like. In such a case, the liquid is collected (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2001-95321 A
[Problems to be solved by the invention]
However, according to the above conventional technique, the fertilizer discharge pipe is always provided by allowing the outlet of the fertilizer discharge pipe to be detachably attached to a mounting section installed at an appropriate position of the self-propelled body. In the fertilizer discharge pipe, the intermediate part extending between the inlet part and the outlet part attached to the residual fertilizer discharge port and the attachment part was in a state of naturally hanging, for example, at the left and right ends of the boarding step, When attaching an outlet at the front of the wheel to facilitate the work of discharging fertilizer into a bucket or the like, the hanging intermediate portion of the fertilizer discharge pipe may be caught in the rear wheel, and as a result, In practice, the outlet of the fertilizer discharge pipe could not be installed in a location where the work of discharging fertilizer with a bucket or the like was easy.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to make it possible to prevent a trouble that an intermediate portion of a fertilizer discharge pipe is caught in a rear wheel while an outlet of a fertilizer discharge pipe can be installed at a place where discharge work can be easily performed.
[0006]
[Means for Solving the Problems]
The features, operations, and effects of the paddy field working machine according to the first aspect of the present invention are as follows.
[0007]
〔Characteristic〕
A paddy field working machine comprising a fertilizer hopper provided with a feeding device having a residual fertilizer discharge port at a lower portion of a self-propelled body including a front wheel, a rear wheel, and a boarding operation unit, wherein the residual fertilizer discharge is performed. A flexible fertilizer discharge pipe connected to the outlet is provided on the body frame of the self-propelled vehicle body with a guide for bending guide so that the outlet portion is located at the left and right ends of the boarding step of the self-propelled vehicle body. On the point.
[0008]
[Action]
The fertilizer discharge pipes with exits located at the left and right ends of the boarding step of the self-propelled body are bent and guided by a guide equipped on the body frame, so the exit of the fertilizer discharge pipe must be Even when the fertilizer discharge pipe is permanently installed at a position such as the front part of the rear wheel at the end, where the discharge work is easy, it is possible to prevent the fertilizer discharge pipe from contacting or being caught in the rear wheel. In other words, since the fertilizer discharge pipe is bent and guided by the guide so as to prevent the rear wheel from interfering with the fertilizer discharge pipe, the outlet of the fertilizer discharge pipe can be installed in front of the rear wheel.
[0009]
〔effect〕
Therefore, while minimizing troubles on the fertilizer discharge pipe as much as possible, the fertilizer discharge pipe can be always prepared so that the fertilizer discharge operation can be easily performed with good workability.
[0010]
The features, functions and effects of the paddy field working machine according to the second aspect of the present invention are as follows.
[0011]
〔Characteristic〕
In the paddy field working machine according to the first aspect of the present invention, the position at which the guide is installed is above the rear axle of the rear wheel and between the rear wheel and the body frame.
[0012]
[Action]
Since the guide is installed above the rear axle and between the rear wheel and the body frame, while installing the fertilizer discharge pipe through the dead space above the rear axle and between the rear wheel and the body frame Also, it is possible to prevent the fertilizer discharge pipe from drooping down on the rear axle and prevent the fertilizer discharge pipe from contacting the rear axle from above, and as a result, the outlet of the fertilizer discharge pipe is installed in front of the rear wheel. be able to.
[0013]
〔effect〕
Therefore, even when the outlet of the fertilizer discharge pipe is disposed at the front of the rear wheel, the fertilizer discharge pipe is always provided so as to extend between the fertilizer hopper located at the rear of the rear wheel and the outlet mounting portion at the front of the rear wheel. In addition, the fertilizer discharge pipe can be installed without protruding left and right outward and without interference from below by the rear axle.
[0014]
The features, operations and effects of the paddy field working machine according to the third aspect of the present invention are as follows.
[0015]
〔Characteristic〕
In the paddy field working machine according to the first or second aspect of the present invention, the position at which the guide is installed is located forward of the rear axle of the rear wheel and between the rear wheel and the body frame.
[0016]
[Action]
Since the guide is installed in front of the rear axle and between the rear wheel and the body frame, even if the mounting part of the exit part is formed in the front part of the rear wheel, the rear wheel and the body frame While the fertilizer discharge pipe is installed through the dead space above the rear axle, such as between the front axle, it is possible to prevent the fertilizer discharge pipe from contacting the rear axle from front due to drooping.
In particular, when a guide is also provided above the rear axle case, it prevents contact with the rear axle from above and forward due to the hanging of the fertilizer discharge pipe, and further prevents interference of the rear axle with the fertilizer discharge pipe. Can be improved.
[0017]
〔effect〕
Therefore, even when the outlet of the fertilizer discharge pipe is arranged in front of the rear wheel, the fertilizer discharge pipe extending between the fertilizer hopper located at the rear of the rear wheel and the front of the rear wheel is always provided. The tube can be installed without protruding left and right outward and without interference from the rear by the rear axle or from behind and from above.
[0018]
The features, functions and effects of the paddy field working machine according to the present invention according to claim 4 are as follows.
[0019]
〔Characteristic〕
In the paddy field working machine according to the present invention according to any one of claims 1, 2 and 3, the mounting support for detachably mounting the outlet of the fertilizer discharge pipe is fixed to the body frame in a state where the mounting support is disposed forward of the rear wheel. In addition, a sheet-like cover for covering the mounting support portion and the outlet mounted on the mounting support portion is provided.
[0020]
[Action]
Focusing on the fact that the rear part of the fertilizer discharge pipe can be prevented from interfering with the fertilizer discharge pipe while the outlet part of the fertilizer discharge pipe is permanently installed as described above, the outlet part of the fertilizer discharge pipe is detachably attached The mounting support section is provided in front of the rear wheel to allow the manure to be discharged with good workability, while the mounting support section and the outlet attached to it are covered with a sheet-shaped cover, so that the rear wheel jumps up. Prevented mud from adhering to the mounting support and the outlet can be prevented, and the discharged fertilizer is not contaminated with mud.
[0021]
〔effect〕
Accordingly, it is possible to reduce the contamination of the discharged fertilizer by mud, even though the outlet portion is permanently provided at the front portion of the rear wheel, which is excellent in discharging workability.
[0022]
The features, operations, and effects of the paddy field working machine according to the fifth aspect of the present invention are as follows.
[0023]
〔Characteristic〕
In the paddy field working machine according to the fourth aspect of the present invention, the mounting support portion and the cover are fastened and fixed together.
[0024]
[Action]
Paying attention to the fact that the mounting support portion and the cover are located at the same position, the mounting support portion and the cover can be jointly fastened and fixed, so that the fixing tool can be shared between the two.
[0025]
〔effect〕
Therefore, it is possible to improve the mounting workability, simplify the mounting structure, and reduce the cost while providing the cover.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIGS. 1 and 2, a riding type rice transplanter, which is an example of a paddy field working machine, includes a pair of left and right driving front wheels 1 for steering, a pair of left and right driving rear wheels 2, and a boarding operation unit 3. A six-row planting type planting device 5 is connected to a rear portion of the self-propelled body 4 via a link mechanism 6 so as to be able to move up and down freely. The planting device 5 is raised with the supply of pressure oil, and the planting device is produced with drainage. A lift cylinder 7 using a hydraulic cylinder for lowering the weight 5 by weight is provided, and a fertilizer device for applying powdery and granular fertilizer to a field along with planting by the planting device 5 is provided.
[0027]
The boarding operation unit 3 includes a boarding step 9 extended to both left and right sides so as to form a passage for getting on and off from the left and right sides of the engine hood 8, and an instrument panel 10 connected to a rear portion of the engine hood 8. The steering wheel has a basic structure including a steering handle 11 for steering operation on the drive front wheel 1 disposed so as to penetrate the driver seat, and a driver seat 12 located behind the steering handle 11. Further, there is a pair of left and right auxiliary steps 13 which are detachably attached to the left and right sides of the boarding step 9 and project outward to the left and right at a position in front of the driving rear wheel 2 in a mounted state. Each of the auxiliary steps 13 is provided with a step 16 for getting on and off having a structure in which a plurality of step boards 15 are stretched between side girders 14 juxtaposed at an interval in front and rear.
[0028]
The self-propelled body 4 includes a rear wheel fender 17 integrally formed with a fender portion for the left and right driving rear wheels 2 and a rear cover portion for connecting the fender portions so as to cover an upper portion of a rear portion of the driver's seat 12. .
[0029]
As shown in FIGS. 3 to 7, the body frame F of the self-propelled body 4 is fixed by a plurality of plate-like connecting members 27 in which a pair of left and right side girders 26 in a front-rear position is arranged at an interval in the front-rear direction. A main frame 29 having a connected structure is provided, and a pair of left and right overhanging frames 28 of a pipe-bent product which are overhanging to the left and right outside are fixed to the main frame 29. A fixed unit of a hydrostatic continuously variable transmission 32, which can be switched between forward and backward, driven by the transmission unit, and a transmission case M, and an engine mounting frame 33 is fixedly connected to the integrated unit. A fertilizer application frame 34 is fixedly connected to a rear portion of the main frame 29. The connecting member 27 also serves as a frame for projecting outward to the left and right from the side beam 26 and for fixing and connecting the overhang frame 28 to the side beam 26. The overhang frame 28 also serves as a frame for fixing and connecting the side beam 26. ing.
[0030]
The planting device 5 includes a seedling nest 18 on which six seedlings are reciprocally movable in the left and right directions within a set range, and a plurality of right and left seedlings that slide on the upper surface of the field as the planting travels to level the planned planting location. The seedlings on the seedling rest 18 are planted in unit amounts by circulating between the seedling rest 18 and the leveling field at the lower end of the seedling rest 18 in conjunction with the movement of the seedling rest 18. There are provided six right and left seedling planting mechanisms 20 that are taken out and planted in a field.
[0031]
As shown in detail in FIGS. 4 to 7, the fertilizer applicator is provided with a fertilizer hopper 22 having a feeding device 21 at a lower portion and an electric drive type for generating an air flow for fertilizer pumping at a rear portion of the self-propelled body 4. A supply blower 23 is mounted on the planting device 5 to form a fertilizer groove on each of the left and right sides of each planting strip as the planting travels, and a fertilizer 24 for feeding the supplied fertilizer into the groove. And has a basic structure in which a flexible supply pipe 25 is provided to guide the fertilizer conveyed by air from the feeding device 21 to the groove generator 24.
[0032]
The fertilizer hopper 22 includes four hoppers 35 arranged side by side on the left and right, and the feeding device 21 is provided at a lower portion of each hopper 35.
[0033]
As shown in FIGS. 8 to 10, each of the feeding devices 21 includes a pair of left and right rotary feeding devices 36 for feeding the fertilizer in the hopper portion 35, and each of the fertilizers fed by each of the rotating feeding devices 36 to a duct D. A pair of left and right cylindrical discharge ports 37 for discharging separately to the supply pipe 25 connected thereto along with the airflow sent through the hopper, a residual fertilizer discharge port 38 for taking out fertilizer from each hopper 35, A first feeding shutter 39 that switches between a state in which the flow rate is reduced to half and a state in which the flow is stopped by opening and closing half of the fertilizer flow path to each rotary feeder 36, and opening and closing the remaining half of the fertilizer flow path. A second feeding shutter 40 for switching between a state where the flow rate is halved and a state where the flow is stopped, and a first operating tool 4 for opening and closing the first feeding shutter 39. A second operating tool 42 for opening and closing the second feeding shutter 40, a discharging shutter 43 for opening and closing a discharging path to each of the residual fertilizer discharging ports 38, and a discharging operating tool 44 for operating the same. Have.
The supply pipe 25 to the left outer one of the groove generators 24 is connected to the left outlet 37 of the left outer one of the four left and right four feeding devices 21, and the right side of the left outer feeding device 21. Is connected to the supply pipe 25 to the left center one of the groove generators 24, and the left outlet 37 of the left inner feeding device 21 is connected to the left inner groove of the groove generator 24. Is connected to the supply pipe 25, and the right outlet 37 of the left inner feeding device 21 is closed with a stopper 37a. The right outlet 37 of the right outer feeding device 21 is connected to the right outlet 37. , A supply pipe 25 to the right outer one of the groove generators 24 is connected, and a supply pipe 25 to the right center one of the groove generators 24 is connected to the left outlet 37 of the right outer feeding device 21. 25 is connected to the right outlet port 37 of the right inner feeding device 21. Supply tube 25 to that of the right is connected, the left outlet 37 of the feeding device 1 in the right is closed by a plug 37a. In other words, the first feeding shutter 39 and the second feeding shutter 40 are appropriately opened and closed while the residual fertilizer discharge port 38 is closed by the discharge shutter 43, so that the fertilizer is added to the left two-story groove generator 24. , A state in which fertilizer is supplied to the left-side and two-center groovers 24, a state in which fertilizer is supplied to all the groovers 24, and a right-side two groover 24. , And a state in which fertilizer is supplied to the two groovers 24 on the right side and the center two lines. Needless to say, the planting device 5 also has a left-side two-row planting mode in which the left-side two-row seedling planting mechanism 20 is operated, and a left-central four-row planting in which the left-side two-row and central two-row seedling planting mechanisms 20 are operated. The form, the whole-row planting mode by operating all the seedling planting mechanisms 20, the right-side two-planting mode by operating the right two-row seedling planting mechanism 20, and the right two-row and central two-row The right center four-row planting mode by operating the seedling planting mechanism 20 can be displayed.
[0034]
The rice transplanter is provided with a fertilizer collecting means for discharging and collecting the residual fertilizer in each of the hopper sections 35.
As shown in FIGS. 11 (a) and (b), the fertilizer collecting means is provided with four fertilizer collecting flexible fertilizer discharge pipes 45 corresponding to each of the hoppers 35, respectively. One end of the discharge pipe 45 is provided with a connection pipe 46 for communicating and connecting to the pair of residual fertilizer discharge ports 38 of each feeding device 21.
That is, by closing the first feed shutter 39 and the second feed shutter 40 and opening the discharge shutter 43, the fertilizer remaining in the hopper 35 is discharged downward from the other end of the fertilizer discharge pipe 45. The fertilizer discharged from the down stream is collected by receiving it in a bucket or the like.
The connection pipe 46 is detachable from the residual fertilizer discharge port 38, and a pair of hooks 47 attached to the residual fertilizer discharge port 38 are connected to the engaging portion 48 of the residual fertilizer discharge port 38 while being connected to the residual fertilizer discharge port 38. By hooking, it is fixed in a state of connection to the residual fertilizer discharge port 38.
[0035]
As shown in FIGS. 12 (a) and (b) to FIG. 14, the four fertilizer discharge pipes 45 are divided into two right and left pipes, and their rear ends, that is, outlets 49, are connected to the right and left pipes. The auxiliary steps 13 are located at the rear of each of the auxiliary steps 13 so that the auxiliary steps 13 can be held by the left and right connecting frames f which are connected and supported by the body frame F. The means for allowing the connecting frame f to detachably hold the outlet 49 is a means for inserting and holding the outlet 49 and attaching the resin mounting support 50 having two detachable insertion parts 50a to the connecting frame f. Since the connecting frame f is located forward of the driving rear wheel 2, the mounting support portion 50 is located forward of the driving rear wheel 2. The mounting support portion 50 and the outlet portion 49 inserted and mounted on the mounting support portion 50 are covered with a sheet-like flexible cover 51 so as to prevent the mud splashed up by the driving rear wheel 2 from being attached. The mounting support 50 and the cover 51 are fastened and fixed to the connecting frame f with screws 52. The cover 51 is desirably transparent so that the insertion state of the outlet portion 49 into the mounting support portion 50 can be visually recognized without turning over, but may be opaque.
[0036]
As shown in FIGS. 1 and 12 (a) and (b), at right and left portions of the body frame F of the self-propelled body 4, outlet portions 49 of the fertilizer discharge pipe 46 are respectively provided with an auxiliary step 13. A guide 53 for bending and guiding the fertilizer discharge pipe 46 so as to be inserted and connected to the left and right ends, that is, the mounting support portions 50 located at the left and right ends of the boarding step 9 is provided.
One of the guides 53A is located above the rear axle 2a of the driving rear wheel 2 which is supported by the body frame F via a rear axle case 54 and located between the driving rear wheel 2 and the body frame F. The other one 53B is installed forward of the rear axle 2a and between the driving rear wheel 2 and the body frame F. More specifically, one guide 53A places and supports the middle part of the fertilizer discharge pipe 45 so as to prevent the middle part of the fertilizer discharge pipe 45 from hanging down and contact with the rear axle case 54, that is, the rear axle 2a, In addition, the middle part of the fertilizer discharge pipe 45 is engaged and held so as to restrict the movement beyond the set position to the left and right outside so as not to be caught in the driving rear wheel 2. The intermediate portion of the fertilizer discharge tube 45 is hooked and supported so as not to come into contact with the rear axle 2a so as to prevent retreat in the middle of the discharge tube 45, and the set position to the left and right outside so as not to be caught in the driving rear wheel 2 is set. The intermediate part of the fertilizer discharge pipe 45 is engaged and held so as to restrict the movement beyond the fertilizer discharge pipe 45.
[Brief description of the drawings]
FIG. 1 is an overall side view. FIG. 2 is an overall plan view. FIG. 3 is a plan view of an airframe. FIG. 4 is a rear view of a feeding device. FIG. 5 is a front view of a main portion of the feeding device. FIG. 7 is a side view of the feeding device. FIG. 8 is an enlarged vertical side view of a main portion of the feeding device. FIG. 9 is an enlarged vertical sectional front view of a main portion of the feeding device. FIG. 11 is a cross-sectional plan view of the fertilizer discharge pipe in a detached state. FIG. 12 is a perspective view and a rear view of the rear part of the body frame. FIG. 13 is a front view of the mounting support section. FIG. 14 is a perspective view of the mounting support section. Explanation of code]
REFERENCE SIGNS LIST 1 front wheel 2 rear wheel 3 riding operation section 4 self-propelled body 38 residual fertilizer discharge port 21 feeding device 22 fertilizer hopper 45 fertilizer discharge pipe 49 outlet section 9 mounting step 53 guide F body frame 2a rear axle 50 mounting support section 51 cover

Claims (5)

A paddy field working machine comprising a fertilizer hopper provided with a feeding device having a residual fertilizer discharge port at a lower portion of a self-propelled body including a front wheel, a rear wheel, and a boarding operation unit, wherein the residual fertilizer discharge is performed. A flexible fertilizer discharge pipe connected to the outlet is provided on the body frame of the self-propelled vehicle body with a guide for bending guide so that the outlet portion is located at the left and right ends of the boarding step of the self-propelled vehicle body. Paddy working machine. The paddy working machine according to claim 1, wherein the guide is installed at a position above a rear axle of the rear wheel and between the rear wheel and a body frame. The paddy working machine according to claim 1, wherein the guide is installed at a position forward of a rear axle of the rear wheel and between a rear wheel and a body frame. A mounting member for detachably mounting the outlet portion of the fertilizer discharge pipe is fixed to the body frame in a state where the mounting portion is disposed forward of the rear wheel, and a sheet-like sheet covering the mounting support portion and the outlet portion attached thereto is provided. The paddy field working machine according to any one of claims 1 to 3, further comprising a cover. The paddy working machine according to claim 4, wherein the mounting support and the cover are fixedly fastened together.

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