JP2007089499A - Paddy field working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paddy field working machine with which residual fertilizer is smoothly discharged, the fixation structure of a discharge hose is simplified and operability in attaching to a fixation part and detaching of the discharge hose is improved. <P>SOLUTION: The paddy field working machine equipped with a granule supply apparatus is furnished with a connecting body 50 in which a discharge pipe conduit for introducing a residual granule in a hopper to a discharge position is constituted of a plurality of discharge hoses 5 individually connected to a plurality of discharge ports of the granule supply apparatus and the plurality of the discharge hoses 5 as a set are connected to the tip side. The connection body 50 is equipped with a lid body 52 for closing the tip opening of a set of the discharge hoses 5 and a connection part 51 connectable to and disconnectable from a hook 63 attached to a discharge hose stop part 61 at the traveling machine body side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention is provided with a granular material supply device used for fertilization or chemical spraying on a traveling machine body, a planting system working device for sowing or seedling planting to the traveling machine body, and remaining in a storage hopper The present invention relates to a paddy field machine having a discharge pipe for discharging powder particles.
In the present specification, devices for performing seeding or planting work in a field are collectively referred to as “planting work device”.

As the paddy field working machine having the discharge pipe for collecting the residual powder from the hopper as described above, those described in the following [1] to [3] are conventionally known.
[1] The discharge pipe extended from the storage hopper provided behind the driver's seat via the feeding mechanism has an end on the start end side connected to the hopper with respect to each of the plurality of supply ports on the hopper side. A plurality of hose parts are connected, and the plurality of hose parts are gathered in a single hose part on the terminal side, and the terminal side hose part collected in the one part is locked to a hook below the fender. (For example, refer to Patent Document 1).
[2] The fertilizer outlet at the tip of the discharge pipe extending from the hopper is supported so as to be inserted into and removed from a hose holder fixed to the vehicle body (see, for example, Patent Document 2).
[3] The front ends of a plurality of discharge hoses constituting a discharge pipe extending from the hopper are connected by a connecting body, and the whole connecting body is fitted into a fixed bracket on the vehicle body and engaged so as to be supported. (See, for example, Patent Document 3).

Japanese Unexamined Patent Publication No. 11-89357 (paragraphs “0047” to “0048”, FIGS. 1, 2, 10, and 11) Japanese Patent Laying-Open No. 2003-310017 (paragraph “0069”, FIGS. 24 and 26) JP 2001-95321 A (paragraphs “0031” to “0033”, FIGS. 2, 4 and 9)

As in the prior art described in [1] above, in the structure in which the distal end portion of the discharge hose is engaged with and disengaged from the hook provided on the lower side of the rear wheel fender, the leading end side is reached before reaching the terminating end hose portion. The number of hose parts on the end side to be locked to the hook is reduced by merging multiple hose parts, but a hose with a special structure that joins in the middle must be adopted as the discharge hose. In this case, the number of hoses to be engaged with the hooks on the end side is increased, and it is necessary to provide many hook engaging portions. When the above-mentioned special hose is used, there are disadvantages in terms of cost and inconvenience that causes difficulty in maintenance when clogging occurs.
As in the prior art described in [2] above, in the structure of supporting the fertilizer take-out port at the tip of the discharge pipe extending from the hopper so that it can be inserted into and removed from a hose holder fixed to the vehicle body, Since multiple fertilizer outlets can be supported by a single holder, there is an advantage that the number of fixed structures can be reduced, but it is necessary to insert and remove individual fertilizer outlets individually into the cap part of the holder. There is a problem that it is bothersome.
As in the prior art described in [3] above, the distal ends of a plurality of discharge hoses constituting the discharge pipe extending from the hopper are connected by a connecting body, and the bracket fixed to the vehicle body together with the connecting body. In the structure that is supported by being fitted into and engaged with, it is possible to collectively engage and disengage the distal ends of a plurality of discharge hoses connected by a connecting body with the bracket on the fixed side. It is advantageous in that the number of units is small and the operation can be performed in two, so it is advantageous in terms of excellent operability, but the fixing structure of the connecting body and the bracket is due to the clamping using the elastic clamping force of the bracket. Therefore, there is a problem that it is difficult to handle because it requires a strong operating force for attaching and detaching if it is fixed and held securely. If priority is given to operability, the discharge hose will come off unexpectedly due to the influence of the aircraft vibration etc. There is.

  An object of the present invention is to provide a paddy field machine that can smoothly discharge residual fertilizer and can simplify the fixing structure of the discharge hose and improve the operability when the discharge hose is attached to and detached from the fixing portion. In the point.

In the paddy field machine according to the present invention, which is taken to achieve the above object, the following technical means are taken.
[Solution 1]
A traveling machine body is equipped with a powder body supply device in which a plurality of hoppers for storing powder bodies and a feeding mechanism for feeding powder bodies sent from the hopper to a supply port by a predetermined amount are arranged in parallel. Paddy field work provided with a supply conduit for guiding the granular material taken out from the hopper by a feeding mechanism to a predetermined supply position on the field and a discharge conduit for guiding the residual granular material in the hopper to a discharge position In the machine
The discharge pipe is composed of a plurality of discharge hoses connected separately to a plurality of discharge ports of the granular material supply device, and a connecting body that connects the distal ends of the discharge hoses as a set. With
The coupling body is provided with a lid for closing the tip opening of the pair of discharge hoses and an engaging portion that can be engaged with and disengaged from a hook provided on the discharge hose stopper on the traveling machine body side. .

[Operation and effect of invention according to Solution 1]
As mentioned above, since it has a connecting body that connects the tip side with a plurality of discharge hoses as a set, the number of fixed parts is reduced compared to the case where the discharge hoses are individually fixed to the fixed parts. It leads to simplification of the structure.
The connecting body is provided with a lid for closing the tip opening of the pair of discharge hoses, and an engaging part detachable from the hook part provided on the fixed part on the traveling machine body side. Therefore, the connecting body serves not only as a means for connecting a plurality of discharge hoses but also as a means for forming an engaging means for the hook portion and a means for attaching the lid. Therefore, also in this respect, the structure can be simplified by sharing the parts.
In addition, the attachment / detachment of the discharge hose to / from the fixing part can be performed by an extremely simple operation by merely engaging / disengaging the engaging part of the coupling body with respect to the hook on the fixing part side. This is superior in terms of operability as compared with the operation of putting in and out of the fitting portion against the elastic restoring force.

[Solution 2]
In the paddy field machine described in the above solution 1, the tip of the discharge hose is supported by the discharge hose stopper in a posture along the left-right direction of the traveling machine body and the end opening is outward, and the end thereof The position of the discharge hose stopper may be set so that the opening of the part is located near the outer end in the left-right direction of the traveling machine body.

[Operation and effect of invention according to Solution 2]
In the invention according to Solution 2, when fixing the distal end portion of the discharge hose, the distal end portion of the discharge hose is supported by the fixed portion in a posture in which the distal end portion is along the left-right direction of the traveling machine body and the end opening is facing outward, The position of the fixed part is set so that the end opening is located near the outer end in the left-right direction of the traveling machine body. That is, the end portion of the discharge hose is positioned near the outer end of the airframe while being supported by the fixed portion, and the discharge direction is also outward.
Therefore, when removing the residual granular material with the discharge hose, it is not necessary to place a collection container in the lower space of the narrow aircraft, and it is easy to do so with it placed on the side of the aircraft. It becomes easy.
Further, if the lid provided on the coupling body is opened, it is possible to take out the powder and granular material while the end portion of the discharge hose is supported by the fixed portion, and it becomes possible to perform the removal work more easily.

[Solution 3]
A traveling machine body is equipped with a powder body supply device in which a plurality of hoppers for storing powder bodies and a feeding mechanism for feeding powder bodies sent from the hopper to a supply port by a predetermined amount are arranged in parallel. Paddy field work provided with a supply conduit for guiding the granular material taken out from the hopper by a feeding mechanism to a predetermined supply position on the field and a discharge conduit for guiding the residual granular material in the hopper to a discharge position In the machine
The discharge pipe is constituted by a discharge hose connected to the discharge port of the powder supply device, and a magnetic pulling action between the tip of the discharge hose and the discharge hose stopper on the traveling machine body side. Discharge hose fixing means that can be fixed by

[Operation and effect of invention according to Solution 3]
In the invention according to the solution means 3, since the fixing means that can be fixed by a pulling action by magnetic force is provided between the distal end portion of the discharge hose and the discharge hose stop portion on the traveling machine body side, the distal end portion of the discharge hose It is possible to attach and detach while confirming how the magnetic force works without worrying about the relative positional relationship between the hose and the hose stopper for fixing the hose. Even if the design has such a portion, there is an advantage that it is relatively easy to attach and detach.
In particular, when a magnet is provided on the tip side of the discharge hose, the travel hull itself is made of iron-based metal even if no special equipment is provided on the side of the travel hull. There is an advantage that it can be used without any trouble even if a powder body supply device of the present invention is newly provided on a traveling machine body that has not been provided with the powder body supply device.

[Solution 4]
In the paddy field machine described in the above solution 3, the travel hose stopper on the traveling machine body side is guided to move the distal end of the discharge hose relative to the discharge hose stopper in the perspective direction, and in the direction intersecting the perspective direction. A guide body that restricts movement may be provided.

[Operations and effects of invention according to Solution 4]
In the invention according to the solution means 4, since the guide body for guiding the movement in the perspective direction of the discharge hose tip with respect to the discharge hose stopper and regulating the movement in the direction intersecting the perspective direction is provided, the discharge hose Even if rainwater or mud adheres to the discharge hose stopper and the magnetic pulling action decreases, the guide body supports and prevents the discharge hose from falling off the discharge hose stopper. Therefore, even if strong airframe vibration or the like acts, there is an advantage that the dropout of the discharge hose can be easily suppressed.

Hereinafter, an exemplary embodiment of the present invention will be described with reference to the drawings.
[Overall configuration of paddy field machine]
As shown in FIG. 1, an engine 13 and a transmission case 14 are provided at the front of a traveling machine body 1 having a pair of left and right front wheels 11 and a pair of left and right rear wheels 12 that can be steered. A maneuvering unit 15 equipped with a steering handle or the like and a driver seat 16 are provided, and a fertilizer application device 2 as a granular material supply device is disposed at the rear of the traveling machine body 1.
A driving unit step 10 having a substantially flat step portion is provided on both the left and right sides of the engine 13, between the control unit 15 and the driving seat 16, and on the left and right sides of the driving seat 16. A stand for seedlings 17 is provided at a position opposite to the position where the engine 13 is disposed on the outer side of step 10, and a rising portion 10 </ b> A is provided at the rearmost part of the operation unit step 10, so that it is more than the flat step portion. A mounting table 7 having a raised mounting surface is disposed, and a fertilizer hopper 20 of the fertilizer application device 2 is disposed above the mounting table 7.
Behind the traveling machine body 1, a link mechanism 4 is connected so as to be movable up and down, and a seedling planting device 3 which is an example of a planting system working device is attached to the link mechanism 4, and is an example of a paddy field work machine. A riding rice transplanter is constructed.
The seedling planting device 3 is configured in an eight-row planting, and includes four planting transmission cases 30, a rotating case 31 that is rotatably supported on the left and right sides of the planting transmission case 30, and both ends of the rotating case 31. A pair of planting claws 32, five grounding floats 33, a seedling table 34, and the like are provided.

[Configuration of fertilizer application equipment]
Next, the structure of the fertilizer application apparatus 2 which is an example of a granular material supply apparatus is demonstrated.
As shown in FIGS. 1, 2, and 3, four support frames 101 are fixed to the upper part of the body frame 100 to which the link mechanism 4 is connected at the rear part of the traveling body 1 along the left-right direction of the traveling body 1. The fertilizer feeding mechanism 21 is connected to the support frame 101. A fertilizer hopper 20 made of transparent resin is attached over the upper part of the four fertilizer feeding mechanisms 21, and as shown in FIGS. 2 and 4, the lid 20 a (made of transparent resin) is arranged on the rear horizontal axis. It can be opened and closed around the core. Thereby, as shown in FIG.1 and FIG.3, the feeding part which consists of the fertilizer feeding mechanism 21 and the fertilizer hopper 20 is arrange | positioned side by side on the rear side of the driver's seat 16 side by side.

  As shown in FIG. 1, on the lateral side portion of the seedling planted by the planting claws 32 of the seedling planting device 3, there is provided a grooving device 35 for feeding fertilizer to the rice field while forming a groove. Two groovers 35 are attached to the grounding float 33. As shown in FIGS. 1, 2, 3, and 4, one fertilizer feeding mechanism 21 and two groovers 35 are connected by two funnel portions 22 and two transport hoses 36.

  As shown in FIGS. 4 and 5, the fertilizer feeding mechanism 21 includes a feeding roll 23 in which a large number of recesses 23 a for entering the granular material are formed on the outer periphery along the circumferential direction, and a granular material discharge port of the fertilizer hopper 20. 24, and above the funnel portion (an example of the start end portion of the fertilizer supply path) 22 is configured so as to be rotatable, and the feeding roll 23 is integrally formed with the shaft portion 25 of the feeding roll 23. The driven gear 25a and the drive gear 26a of the drive shaft 26 to which power is input are configured to rotate by driving. In addition, the code | symbol 23b in a figure is a brush which slidably contacts with the surrounding surface of the supply roll 23, and acts by grinding.

  As shown in FIGS. 1 and 3, a PTO shaft 40 that transmits power to the seedling planting device 3 is extended from the mission case 14, and a crankshaft 41 that takes power from the PTO shaft 40 sideways is attached to the body frame 100. It is pivotally supported by a fixed transmission case 42. The output of the crankshaft 41 is connected via a linkage rod 43 to a one-way clutch 44 fitted on the drive shaft 26.

As shown in FIGS. 1 and 2, the blower 27 and a motor 27 </ b> A for driving the blower 27 are supported at the end of the support frame 101, and the wind generated by the blower 27 is supplied to each funnel portion 22. A pipe-shaped air duct 28 is provided extending from the blower 27 so as to extend along the support frame 101.
As shown in FIG. 5, in the two funnel portions 22 connected to the lower portion of the fertilizer feeding mechanism 21, the supply port (an example of the air intake path) 22 a of the funnel portion 22 is inserted into the air duct 28 via the seal rubber. And fixed.

With the above structure, the rotating case 31 of the seedling planting device 3 is rotated by the power of the PTO shaft 40, and the seedlings are alternately taken out from the seedling platform 34 by the pair of planting claws 35 and planted on the rice field. Planting work. At the same time, the reciprocating motion of the linkage rod 43 due to the rotational motion of the crankshaft 41 is converted into rotational motion by the one-way clutch 44, and the rotational shaft 25 is intermittently driven via the drive shaft 26.
As a result, as shown in FIGS. 3 to 5, the fertilizer enters the recess 23 a of the feed roll 23 from the fertilizer hopper 20, and the fertilizer is fed to the funnel portion 22 by the intermittent rotation of the drive shaft 15. Then, the high-pressure wind from the blower 27 is supplied to the funnel portion 22 through the blower duct 28, and the fertilizer is quickly supplied to the grooving device 35 through the conveyance hose 36 by the high-pressure blast, and the grooving device 35. As a result, fertilizer is fed into the grooves formed on the rice field and fertilization work is performed.

  As shown in FIG. 5, a shutter 45 is disposed on the upper side of the feeding roll 23 so as to be freely inserted and removed. Although not shown, the shutter 45 is composed of a plate-like member divided into a plurality of parts in the longitudinal direction of the feed roll 23, and by inserting and removing the plate-like member separately, fertilizer for the recess 23 a of the feed roll 23 is provided. It is configured so that the amount can be adjusted.

  As shown in FIGS. 4 and 5, a switching plate 46 is supported in the granular material discharge port 24 of the funnel portion 22 so as to be swingable around the horizontal axis, and the discharge hose is provided below the switching plate 46. 5 is extended downward. During the normal seedling planting operation, the switching plate 46 is operated in the closed position shown by the solid line in FIG. 5, and the fertilizer from the fertilizer hopper 20 is fed to the funnel portion 22. When the normal seedling planting operation is completed, the switching plate 46 is operated to the open position while the drive of the blower 27 and the seedling planting device 3 (specifically, the drive of the PTO shaft 40) is stopped. Then, the fertilizer remaining in the fertilizer hopper 20 enters the discharge hose 5 and is discharged.

[Exhaust pipe structure]
The discharge conduit for discharging the powder particles in the fertilizer hopper 20 is constituted by the discharge hose 5 connected to each of the powder particle discharge ports 24 of the funnel portion 22.
As shown in FIGS. 4 and 6, one discharge hose 5 is provided for each of the four fertilizer feeding mechanisms 21, and each discharge hose 5 is a relatively soft and flexible synthetic resin material. It consists of
As shown in FIGS. 2 and 4, the four discharge hoses 5 inserted through the through holes 74 provided in the mounting base 7 of the fertilizer application device 2 are respectively extended downward, and two of them are each of the traveling machine body. The tip opening is locked and fixed to the discharge hose stoppers 6 provided on the left and right of the traveling machine body.

[Structure of discharge hose fixing means]
Means for fixing the tip opening of the discharge hose 5 to the traveling machine body is configured as follows.
As shown in FIGS. 6 to 8, the discharge hose stopper 6 as a means for fixing the front end opening of the discharge hose 5 to the traveling machine body includes a machine body side stopper 61 provided on the traveling machine body, It is comprised with the combination with the hose side stop part 62 with which the hose 5 side is equipped.

A boarding step 102 is provided on both the left and right sides of the driving unit step 10 of the traveling machine body, and a mounting bracket 103 that supports the boarding step 102 is provided on the lower surface side of the driving unit step 10.
The airframe side stopper 61 provided on the traveling airframe side is configured by a hook 63 erected rearward on the rear outer surface of the mounting bracket 103 for supporting the operation unit step 10.
The hose side stopper 62 provided on the discharge hose 5 side is configured by an engagement hole 51 (an example of an engagement portion) integrally provided in a connecting body 50 that connects the tip ends of the two discharge hoses 5. Has been. The connecting body 50 is also integrally provided with a lid body 52 portion that closes the tip opening portions of the two discharge hoses 5, and the tip portion of the discharge hose 5 is supported by the hook 63. The front end opening is configured to be kept closed by the lid body 52. The engagement / disengagement operation of the connecting body 50 with respect to the hook 63 and the opening / closing operation of the lid body 52 can be performed separately by independent operations, and the lid body remains engaged with the coupling body 50. 52 can be opened and closed.
As shown in FIG. 6, the position of the hook 63 is such that the tip of the discharge hose 5 engaged with the hook 63 does not protrude outward from the outer end in the left-right direction of the step 102 for getting on and off. In the vertical direction, the tip of the discharge hose 5 engaged with the hook 63 is located at the end of the step 102 for getting on and off. The position is set so as to be located above the lower stage. In addition, the discharge hose 5 is fixed to the hook 63, and the entire length is maintained so as to maintain a downward inclination from the granular material discharge port 24 of the fertilizer application device 2 so that the tip end opening is at the lowest position. Is set.

[Installation stand]
As shown in FIG. 2, the mounting table 7 on which the fertilizer application 2 is mounted is configured by a combination of a pair of left and right symmetrical divided bodies 70a and 70b formed by blow molding of a synthetic resin material, and each divided body 70a. , 70b are fixed to the rising portion 10A of the driving unit step 10 and the support body 104 erected from the machine body frame 100, so that a substantially flat plate-like mounting base 7 is configured.
As shown in FIG. 9, the mounting base 7 has an upper layer portion 71 formed in a generally flat plate shape as a whole shape and a lower layer portion 72 provided with protruding portions upward at predetermined intervals. And the whole top part is comprised by the joint part 73 joined by the superposition | polymerization state with which the top part of the upward protrusion part of the said lower layer part 72 was applied to the lower surface side of the upper layer part 71 is comprised. A through hole 74 through which the discharge hose 5 is inserted is formed in the joint 73 having a relatively large diameter existing in a position corresponding to a position near the granular material discharge port 24 of the fertilizer application apparatus 2. It has been drilled.
The driving part step 10 has a rising part 10 </ b> A that protrudes slightly higher than the front end side that becomes the steering part floor surface on the front side of the driver seat 16, and the mounting part is mounted on the raised part. Although the base 7 is installed, as shown in FIGS. 1, 4, and 9, the front end side of the mounting base 7 protrudes forward from the location where the rising portion 10 </ b> A of the operation unit step 10 exists. It is fixed in the state.
In other words, the flat portion of the operation unit step 10 is extended as far back as possible. In this manner, when the pilot replenishes the seedling planting device 7 at the rear of the aircraft with the spare seedling mounted on the reserve seedling platform 17 on the front side of the aircraft, one foot is hung on the mounting platform 7. By inserting the other leg until just before the rising portion 10A, it is advantageous in that the seedling replenishing operation can be easily performed with the foot positioned as far back as possible.

[Other Embodiment 1]
As shown in FIG. 10, the means for fixing the distal end portion of the discharge hose 5 to the traveling machine body is not limited to the structure of the discharge hose stop portion 6 described in the above embodiment, and is configured as follows. May be.
That is, the permanent magnet 65 is embedded and fixed to the lateral surface of the connecting body 50 that connects the tip ends of the two discharge hoses 5. This lateral side surface is a surface on the side facing the rear outer surface of the mounting bracket 103 for supporting the operation unit step 10 which is a fixed portion on the traveling machine body side, and a permanent magnet 65 is attached to the surface. The permanent magnet 65 is configured to be fixed by a pulling action by a magnetic force.
As described above, by adopting a structure using magnetic force as the fixing means for receiving the tip of the discharge hose 5, the degree of freedom increases in the position setting of the airframe side stopper 61 on the traveling airframe side, and any surface of the mounting bracket 103, Alternatively, it can be stopped at a position in the vicinity thereof.
When the degree of freedom of position at the machine body side stopper 61 is not particularly required, a permanent magnet 65 is provided not on the end side of the discharge hose 5 but on the traveling machine body side, and a magnetic material is provided on the discharge hose 5. It may be attached and fixed.
Further, permanent magnets 65 and 65 having different polarities may be provided and fixed to the discharge hose 5 side and the traveling machine body side, respectively.

[Second embodiment]
As shown in FIG. 11, yet another embodiment may be adopted as means for fixing the distal end portion of the discharge hose 5 to the traveling machine body.
That is, in addition to adopting the structure using magnetic force described in the above “1 of another embodiment”, a rod-shaped guide body 66 is erected on the machine body side stop portion 61, and the guide body is connected to the connecting body 50. 66 is provided so that the connecting body 50 can be guided in a distance direction with respect to the mounting bracket 103 serving as the airframe side stopper 61 in a state where the guide body 66 is inserted into the guide hole 67. It is.
If comprised in this way, even if the permanent magnet 65 provided in the coupling body 50 and the mounting bracket 103 are not sufficiently close to each other, for example, in a state where mud adheres to the contact surface, fixing with magnetic force In addition to the action, since the support action by the guide body 66 is working, there is an advantage that even if the tip of the discharge hose 5 tries to drop off from the fixed portion due to a large body vibration, etc., this can be prevented. .

[3 of another embodiment]
In constructing the driver's seat 16, as shown in FIGS. 12 (a) and 12 (b), the seating surface 16A and the backrest surface 16B are formed as separate structures and can be folded in two, and FIG. ), The front side of the seating surface 16A is lifted and folded in half, and the backrest surface 16B is folded forward and folded in half as shown in FIG. You may make it foldable. If comprised in this way, when performing the maintenance inspection work on the driving | running | working part step 10, there exists an advantage that it is easy to ensure the working space in a driving | running | working part space by selecting the folding direction of the driving seat 16 suitably.

[4 of another embodiment]
Although the fertilizer application apparatus 2 was illustrated as a granular material supply apparatus, it is not restricted to this, The application apparatus which sprays chemical | medical agents, such as a herbicide, or those mixtures may be supplied.

Side view of riding rice transplanter Top view of riding rice transplanter Rear view of fertilizer application part Side view showing power transmission structure to feeding section Sectional drawing which shows structure of feeding mechanism part Front view showing the discharge hose extraction part Perspective view showing structure of discharge hose stopper Shows the structure of the discharge hose stopper, (a) is a side view, (b) is a cross-sectional view Cross section of mounting base Sectional drawing which shows another embodiment of a discharge hose stopper Sectional drawing which shows another embodiment of a discharge hose stopper Side view showing another embodiment of driver's seat

Explanation of symbols

1 traveling machine body 2 fertilizer application device (powder supply device)
5 Discharge hose 6 Discharge hose stopper 20 Hopper 21 Feeding mechanism 22a Supply port 24 Discharge port 50 Connection body 52 Lid body 63 Hook 66 Guide body

Claims (4)

A traveling machine body is equipped with a powder body supply device in which a plurality of hoppers for storing powder bodies and a feeding mechanism for feeding powder bodies sent from the hopper to a supply port by a predetermined amount are arranged in parallel. Paddy field work provided with a supply conduit for guiding the granular material taken out from the hopper by a feeding mechanism to a predetermined supply position on the field and a discharge conduit for guiding the residual granular material in the hopper to a discharge position Machine,
The discharge pipe is composed of a plurality of discharge hoses connected separately to a plurality of discharge ports of the granular material supply device, and a connecting body that connects the distal ends of the discharge hoses as a set. With
The coupling body is provided with a lid for closing the tip opening of the pair of discharge hoses and an engaging portion that can be engaged with and disengaged from a hook provided on the discharge hose stopper on the traveling machine body side. Paddy field machine.   The leading end of the discharge hose is supported by the discharge hose stopper in a posture along the lateral direction of the traveling machine body and with the end opening facing outward. The paddy field machine according to claim 1, wherein the position of the discharge hose stopper is set so as to be located near the end. A traveling machine body is equipped with a powder body supply device in which a plurality of hoppers for storing powder bodies and a feeding mechanism for feeding powder bodies sent from the hopper to a supply port by a predetermined amount are arranged in parallel. Paddy field work provided with a supply conduit for guiding the granular material taken out from the hopper by a feeding mechanism to a predetermined supply position on the field and a discharge conduit for guiding the residual granular material in the hopper to a discharge position Machine,
The discharge pipe is constituted by a discharge hose connected to the discharge port of the powder supply device, and a magnetic pulling action between the tip of the discharge hose and the discharge hose stopper on the traveling machine body side. Paddy field work machine provided with a discharge hose fixing means that can be fixed with   4. A guide body that guides movement of the distal end portion of the discharge hose relative to the discharge hose stop portion in the perspective direction and restricts movement in a direction intersecting the perspective direction is provided on the discharge hose stop portion on the traveling machine body side. The paddy field machine described.

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