JP2003310017A - Fertilizer applicator-attached rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fertilizer applicator-attached riding type rice transplanter for supplying a fertilizer to seedlings, respectively, planted in a plurality of rows, which can simply be switched into an operation for planting the seedlings in the small number of rows and simultaneously applying the fertilizer to the planted seedlings or into an operation for planting the seedlings in all rows without applying the fertilizer. <P>SOLUTION: This fertilizer applicator-attached riding type rice transplanter is equipped with clutch levers 140 for engaging clutches 135 for planting the seedlings in the small number of rows and clutches 90 for applying the fertilizer to the seedlings in the small number of rows so as to be operated cooperatively. The fertilizer applicator-attached riding type rice transplanter is further equipped with a collectively clutch-operating tool 171 for disengaging the clutches 90 in preference to the clutch levers 140, while maintaining the clutches 135 in an engaged state. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of seedling planting devices having a plurality of seedling planting mechanisms arranged side by side in a lateral direction of a body, which are connected to a rear portion of a self-propelled vehicle so that the seedling planting devices can be moved up and down. The present invention relates to a rice transplanter with a fertilizer application device, which is provided with a fertilizer application device for separately supplying fertilizer near a seedling planting site by an attachment mechanism.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned rice transplanter, a minority row planting clutch for turning on / off transmission to a part of a plurality of seedling planting mechanisms and a small number of turning on / off fertilizer application corresponding to a part of a plurality of seedling planting mechanisms. Some were equipped with a fertilizer clutch.

In the rice transplanter described above, a swingable operation arm for driving a fertilizer feeding device of a fertilizer applicator is conventionally used, as disclosed in, for example, Japanese Unexamined Patent Publication No. 2002-95312.
In addition, there is a drive rod that is reciprocally driven to transmit power to the operation arm and that is provided with an adjusting mechanism that changes a connecting position of the drive rod in the operation arm.

In the rice transplanter described above, conventionally, a fertilizer feeding device of a fertilizer applying device is provided with a residual fertilizer take-out port.

In the rice transplanter described above, conventionally, a fertilizer feeding device of a fertilizer applying device has been provided with a feeding roll which can be driven and rotated around a horizontally oriented axis.

[0006]

In the one provided with the above-mentioned minority-row planting clutch and the minority-fertilization fertilizer clutch, conventionally, one clutch operation tool interlocking with both clutches is provided, and a part of the seedling planting mechanism. When switching between so-called fractional number planting work and so-called fractional number planting work while stopping the seedling planting by using, there was a thing that can switch both clutches by operating one clutch operating tool. .

In the rice transplanter of this type, when performing the whole number planting operation without applying fertilizer, conventionally, if the minor fertilizer application clutch is switched to the cutting side by the clutch operating tool so that fertilizer application is not performed, the minor number planting operation is performed. Since the clutch is also switched to the disengagement side and the seedling planting mechanism is not driven, the shutter provided in the fertilizer feeding device is switched to the closing side so that fertilizer is not supplied to the feeding operation part of the fertilizer feeding device. By doing, planting work was being performed. For this reason, the shutter provided in each of the plurality of fertilizer feeding devices has to be operated, which is troublesome.

Further, in this type of rice transplanter, problems may occur when switching work or supplying seedlings, depending on the arrangement of the clutch operating tools. That is, when the clutch operating tool is located closer to the seedling planting device than to the fertilizer feeding device part, it becomes difficult to operate from the driving part, and the clutch is operated in order to switch between the fractional row planting work and the whole number planting work. In order to operate the operation tool, it is necessary to get out of the driving section, which is troublesome. Even when the clutch operating tool is located closer to the driving section than the fertilizer supplying apparatus section, when the seedling planting device is replenished with seedlings from the operating section, if the clutch operating tool is projected, it may become an obstacle or touch the body. It is easy for things such as movements to occur.

The adjusting mechanism described above changes the swing angle at which the operating arm is driven by the drive rod by changing the position at which the drive rod of the operating arm is connected, and the fertilizer feeding amount per unit time by the fertilizer feeding device is changed. Is to change. That is, the amount of fertilizer applied is adjusted by using the drive mechanism of the fertilizer feeding device as the adjusting means.

In the conventional fertilizer application rate adjusting mechanism of this type, only one kind of position changing pitch is determined by the pitch at which the positioning recesses are provided on the operation arm so as to determine the connecting position of the drive rod. The connection position of the drive rod was changed. As a result, if the position change pitch is increased, fine adjustment cannot be performed. On the other hand, if fine adjustment is possible, the position change pitch becomes smaller, which makes it difficult to accurately determine the amount of movement and makes adjustment difficult.

Conventionally, in the one provided with the residual fertilizer outlet, a flexible hose is directly connected to the residual fertilizer outlet, and when rainwater or car wash water is applied,
It was easy to penetrate from the connection point.

In the one provided with the pay-out roll,
Conventionally, when the fertilizer is attached to the feeding concave portion of the feeding roll, for example, when the fertilizer becomes damp, the situation where the fertilizer remains attached tends to occur.

The object of the present invention is to adjust the fertilizer application amount by using the driving means of the feeding device, such that the operation mode can be easily switched, the minority fertilizer application clutch can be easily switched, and the seedlings can be easily replenished. Therefore, it is to provide a rice transplanter with a fertilizer application, in which it is easy to adjust, or it is easy to remove residual fertilizer, but it is easy to avoid inundation, and it is difficult for fertilizer to remain attached to the feeding roll.

[0014]

The constitution, action and effect of the invention according to claim 1 are as follows.

[Configuration] A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the lateral direction of the machine is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and seedling planting by the plurality of seedling planting mechanisms is performed. In a rice transplanter with a fertilizer application that is equipped with a fertilizer supply device that separately supplies fertilizers in the vicinity of the location, a plurality of minority row planting clutches that turn on and off transmission to a part of the plurality of seedling planting mechanisms can be individually turned on and off independently. And a plurality of minority fertilizer application clutches for turning on and off fertilizer application corresponding to a part of the plurality of seedling planting mechanisms are separately provided to be operated individually, and the minority planting mechanism to be controlled has the same seedling planting mechanism. A plurality of clutch operating tools for interlocking the clutch and the minority fertilizer application clutch to perform a switching operation are provided in association with each of the plurality of minority fertilizer application clutches and the number of minority fertilizer application clutches. In preference to the clutch operation member are provided with one clutch batch operation device for operating switched to side off the plurality of small Article fertilization clutch while maintaining the side enters the plurality of small Article planting clutch.

[Operation] If an appropriate one is selected from a plurality of clutch operation tools and operated, the minority row planting clutch and the minority number fertilization clutch are interlocked and switched to the entry side or the cutting side, and a desired part. The seedling planting mechanism is driven to perform seedling planting, fertilization is applied to the planted seedlings, and a desired part of the seedling planting mechanism is stopped to stop seedling planting and Fertilization is also stopped.

By operating the clutch collective operation tool, the plurality of minority fertilizer application clutches are switched to the disengagement side in preference to the clutch operation tool while maintaining the plurality of minority row planting clutches on the entrance side, thereby enabling a plurality of seedlings to be planted. The fertilizer application to the planted seedlings by each seedling planting mechanism can be stopped while the mechanism is driven to plant the seedlings.

[Effect] Therefore, some minority row planting clutches and some minority row fertilization clutches can be switched to the entry side or the cutting side to perform fractional row planting work simply by operating a predetermined clutch operating tool. , You can do all number planting work. On the other hand, simply by operating the clutch collective operation tool, it is possible to easily perform the whole number-of-rows-planting work in which the plurality of minority-row fertilizer application clutches are on the entrance side while the plurality of minority-row fertilizer application clutches are on the disengagement side and fertilization is not performed.

The constitution, action and effect of the invention according to claim 2 are as follows.

[Configuration] A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the lateral direction of the machine is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and seedling planting by the plurality of seedling planting mechanisms is performed. In a rice planting machine with a fertilizer application, which is equipped with a fertilizer supply device that separately supplies fertilizers in the vicinity of a location, a minority row planting clutch that turns on and off transmission for a part of the plurality of seedling planting mechanisms,
A clutch lever for switching operation by interlocking with a minority fertilizer application clutch that engages and disengages fertilization corresponding to the part of the seedling planting mechanism that is operated by turning on and off by the minority fertilizer plant clutch, and a fertilizer supply device section in the fertilizer applicator. ,
The fertilizer feeder is provided so as to be swingable between the driver's seat and the front side of the fertilizer feeder, and in the clutch engaged position, the clutch lever is entirely covered from the front end of the fertilizer feeder to the vehicle body. It is attached to the rear side so that it is in a retracted state.

[Operation] Since the clutch lever is provided so as to be swingable between the fertilizer supply unit and the driver's seat located on the front side of the fertilizer supply unit, the clutch lever is operated from the driver. By operating this clutch lever, part of the seedling planting mechanism is driven to plant seedlings, fertilizer is applied to the planted seedlings, and part of the seedling planting mechanism is stopped. And the fertilization for this planting is also stopped.

During work, the clutch lever is generally operated to the clutch engaged position. At this clutch engaged position, the clutch lever is generally retracted to the rear side of the vehicle body from the frontmost end of the fertilizer feeding device section. When the seedling planting device is replenished by the operation unit, the clutch lever is covered by the fertilizer supply unit so that the clutch lever does not easily become an obstacle or touch the body.

[Effect] Accordingly, the number of planted clutches and the number of fertilizer applied clutches can be easily switched by simply operating the clutch lever, and the clutch lever can be operated from the driving section, so that the number of clutches can be operated easily and quickly. It can be switched between planting work and whole number planting work. Moreover,
When operating the seedling planting device such as supplying the seedlings from the driver's part, the clutch lever does not easily become an obstacle or touch the body, which is easy.

The structure, operation, and effect of the invention according to claim 3 are as follows.

[Configuration] A seedling planting device having a plurality of seedling planting mechanisms arranged in the lateral direction of the machine is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and the seedling planting by the plurality of seedling planting mechanisms is performed. In a rice transplanter with a fertilizer application, which is equipped with fertilizer applicators for supplying fertilizer separately to each location, a reciprocating drive is performed by a swingable operation arm that drives the fertilizer feeding device of the fertilizer applicator and a crank arm that can be driven and rotated. And an arm-side interlocking member that is connected to the operation arm so as to adjust the position of the operation arm in the longitudinal direction of the operation arm, and the arm-side interlocking member. The member is movably connected to the arm-side interlocking member at a position change pitch smaller than a position change pitch of the member with respect to the operation arm in the longitudinal direction of the operation arm. The drive rod is provided with a drive-side interlocking member that is rotatably connected to relative rotation.

[Operation] When the position of the arm-side interlocking member is changed with respect to the operation arm, the position of the drive-side interlocking member is changed at a position change pitch larger than that of the arm-side interlocking member. The connecting position of the rod changes with the large position change pitch. When the position of the drive-side interlocking member is changed with respect to the arm-side interlocking member, the position changes with a smaller position change pitch than the position change with respect to the arm-side interlocking member, and the connecting position of the drive rod in the operation arm changes by that small position. It changes with the pitch. As a result, by adjusting the position of the arm-side interlocking member with respect to the operation arm, the connecting position of the drive rod in the operation arm moves at a large position change pitch, and whether or not the amount of movement is as desired. It is possible to adjust the movement angle of the operation arm roughly and relatively accurately while adjusting the movement while relatively accurately determining whether or not. By adjusting the position of the drive-side interlocking member with respect to the arm-side interlocking member, the connecting position of the drive rod in the operation arm can be finely moved at a small position change pitch to finely adjust the drive angle of the operation arm. .

[Effect] Therefore, the drive angle of the operation arm can be reduced by adjusting the position of one of the arm-side interlocking member and the drive-side interlocking member, or by adjusting both of the position changes. It is possible to adjust and adjust the fertilizer application rate by changing the value to or adjusting the value with high accuracy.

The structure, operation, and effect of the invention according to claim 4 are as follows.

[Configuration] A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the machine body is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and seedling planting by the plurality of seedling planting mechanisms is performed. In a rice transplanter with a fertilizer application that is equipped with a fertilizer supply device that separately supplies fertilizers in the vicinity of the location, a discharge line for removing residual fertilizer from the fertilizer supply device of the fertilizer application is used as a base end for the residual fertilizer extraction port of the fertilizer supply device. It is composed of a non-flexible pipe member whose side is connected, and a flexible hose whose one end side is connected to the tip end side of this pipe member and whose outlet is formed at the other end side.

[Operation] If the discharge hose is constructed by a flexible hose directly connected to the residual fertilizer outlet, the actual fertilizer outlet on the tip side of the hose is formed by bending the hose. Can be moved to the storage location and the fertilizer recovery location, but in this case, since the hose is flexible, it is difficult to seal between the hose and the residual fertilizer outlet. On the other hand, in the present invention, a non-flexible pipe member whose proximal end side is connected to the residual fertilizer extraction port of the fertilizer feeding device, and one end side is connected to the distal end side of this pipe member, and the other end is connected. Since the discharge hose is composed of the flexible hose that forms the outlet on the side, it is easy to seal between the residual fertilizer outlet and the pipe member connected to it, and the residual fertilizer outlet is removed. The outlet can be moved to the storage location and the fertilizer recovery location by bending the hose while connecting the discharge pipe line to the port in a highly sealed state. Further, in this case, the part where the non-flexible pipe member and the hose are connected is located relatively far from the residual fertilizer take-out port even if it is relatively difficult to seal the fertilizer feeding device. Water will not easily occur.

[Effect] Therefore, although the outlet can be easily stored by flexing the hose or can be easily taken out to the fertilizer collection point, rainwater or car wash water can enter from the discharge pipeline to the feeding device. It can be made highly waterproof.

The structure, operation, and effect of the invention according to claim 5 are as follows.

[Configuration] A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the lateral direction of the machine is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and seedling planting by the plurality of seedling planting mechanisms is performed. In a rice transplanter with a fertilizer application, which is equipped with a fertilizer supply device that separately supplies fertilizers in the vicinity of a location, a cleaning brush that acts on a feeding roll that can be driven and rotated about a horizontally oriented axis in a fertilizer feeding device of the fertilizer applicator is used. The extension line of the brush is provided on the lower side of the payout roll in a state of being off the rotation axis of the payout roll.

[Operation] Since the cleaning brush acts on the lower side of the feeding roll in a state where the extension line of the brush deviates from the rotation axis of the feeding roll, the cleaning brush feeds the peripheral surface of the rotating feeding roll. Regardless of the bending when riding between the recesses, it is easy to act over the entire inside of the feeding recess as much as possible. As a result, even if the fertilizer is fed out and adheres to the concave portion, the fertilizer is scraped out so that it is unlikely to remain in the concave portion.

[Effect] Therefore, even if fertilizer does not adhere to the feeding concave portion, it does not easily remain adhered, and the fertilizer does not remain adhered and the fertilizer application amount becomes insufficient, so that poor fertilizer application or the like does not occur. Fertilization work is possible.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 and 2, a pair of left and right front wheels 1 that are steerable and a pair of left and right rear wheels 2 are driven by a driving force from an engine 11 and are self-propelled. Further, each of them is provided with a spare seedling accommodation device 3 located on both sides of the driving part 10 provided with the engine 11, and a boarding type operating part provided with a driver's seat 4 located at the rear part of the vehicle body. The seedling planting device 20 is connected to the rear portion of the self-propelled vehicle body via the link mechanism 6, and the link cylinder 6 is vertically swung with respect to the vehicle body by the lift cylinder 7 connected to the link mechanism 6 on the rod side. By doing so, the seedling planting device 20 is configured to be moved up and down, and the driving force from the engine 11 is applied by the rotating shaft 8 to the seedling planting device 20.
The fertilizer application device S is provided with one fertilizer tank 31 that is located on the rear side of the driver's seat 4 and that is long in the lateral direction of the vehicle body, and a riding-type rice transplanter with a fertilizer application device is configured. is there.

In this rice transplanter, the self-propelled vehicle is made to run by placing the seedling planting device 20 in a descending working state in which the grounding float 21 is in contact with the paddy field, so that the seedling planting devices 20 are arranged side by side in the lateral direction of the planting machine body. A plurality of seedlings are planted by the plurality of seedling planting mechanisms 22 that are present, and at the same time, the fertilizer application device S supplies granular fertilizers to the lateral sides of each of the plurality of planted seedlings. The details are configured as follows.

As shown in FIGS. 1, 2 and 3, the seedling planting device 20 includes a feed case 23 for inputting from the rotary shaft 8 and a plurality of planting cases 24 arranged in the lateral direction of the planting machine body. The planting machine frame, the seedling planting mechanism 22 rotatably attached to both lateral sides of the rear end of each planting case 24, and the planting machine frame above the front end side of the planting machine frame. A seedling placing table 25 that is slidably provided in the lateral direction and is reciprocally transferred in the left-right direction in association with the seedling planting movement of each seedling planting mechanism 22 to supply seedlings to each seedling planting mechanism 22, and the planting. The plurality of grounding floats 2 are arranged below the machine frame in the lateral direction of the planting machine so as to swing up and down around the rear end side axis.
1 and are configured.

As shown in FIG. 1, FIG. 3, FIG. 4, etc., the fertilizer applicator S has a fertilizer supply device section 30 provided with the fertilizer tank 31 and the fertilizer supply apparatus section 30 side by side in the lateral direction of the vehicle body. A plurality of fertilizer supply paths 50, each of which extends from the plurality of fertilizer discharge ports 41 toward the seedling planting device 20 and the extension end side of which is located on the back side of the seedling placing table 25, and the plurality of fertilizer supply paths 50. Are separately connected to the extended end portions of the fertilizer supply paths 50, and are arranged one by one near the lateral sides of the seedling planting mechanisms 22, and are arranged side by side in the lateral direction of the planting machine body to form the ground float 2
It is constituted by a plurality of furrowing fertilizers 70 fixed to No. 1 and a blower unit 60 provided with a blower 61 located below the driver's seat 4.

As shown in FIGS. 4 and 5, the fertilizer feeding device section 30 has a lid 32 attached to the upper part so as to be swingable and openable, and the lid 32 can be seen from the outside without opening the lid 32. Both the fertilizer tank 31 and the fertilizer tank 31, both of which are made of a transparent resin material, are connected to the fertilizer tank 31 and a plurality of downwardly tapered bottom portions 31a of the fertilizer tank 31 which are arranged in the lateral direction of the vehicle body. It is constituted by a plurality of fertilizer feeding devices 40 connected to the lower portion of the tank 31 side by side in the lateral direction of the vehicle body.

As shown in FIG. 6 to FIG. 9, each fertilizer feeding device 40 includes the fertilizer tank 31 with the lower narrow bottom portion 3.
A feeding case 4 made of a transparent resin material so that the upper end side is connected to 1a and the inside can be seen from the outside.
2. The feeding roll 4 rotatably provided in one of a pair of left and right feeding chambers located inside the feeding case 42.
3. The lower end side of the feeding case 42 is provided so as to communicate with the pair of feeding chambers separately and arranged side by side in the lateral direction of the vehicle body 2.
One of the fertilizer outlets 41 of the fertilizer outlet 41
1, 2 for the supply port 44 provided for supplying the fertilizer to the feeding roll 43 inside the feeding case 42
The shutter 45 and the like are provided.

That is, each fertilizer feeding device 40 has an operation knob at the end of the feeding amount adjusting device 46, which is formed by a sliding rod connected to one end side of each shutter 45, protruding from the feeding case 42 to the outside. At least one of the two shutters 45 is delivered by sliding the delivery amount adjuster 46 along the guide groove 118a of the operation guide 118 as shown in FIG. 9 with the operation portion 46a provided additionally. The delivery roll 4 located in the other delivery chamber is pushed into the shutter accommodating chamber 45a located inside the case 42 to open the supply port 44.
The rotation support shaft 47 which is also used as the rotation support shaft of No. 3 is driven so that the feeding roll 43 causes the fertilizer tank 31.
The fertilizer is delivered from the fertilizer to the fertilizer discharge port 41. That is, the feeding roll 43 is driven by the rotation support shaft 47 so as to rotate in the feeding direction around the horizontally oriented axis, and flows down from the discharge port 31b of the fertilizer tank 31 into the feeding case 42 and from the supply port 44. The fertilizer supplied to the upper side of the feeding roll 43 is arranged on the peripheral surface of the feeding roll 43 in the roll rotation direction.
It is taken out to the lower side of the feeding roll 43 by a and is made to flow from the outlet of the feeding chamber to the fertilizer discharge port 41.

It should be noted that one of the fertilizer tanks 31 has a bottom thin bottom portion 3
In the two fertilizer feeding devices 40 connected to 1a, a feeding case 42 of one fertilizer feeding device 40,
The fertilizer feeding device 40 of the other fertilizer feeding device 40 and the feeding case 42 are formed as a single component, and the feeding rolls 43 of both fertilizer feeding devices 40 are rotatably supported by a single rotary support shaft 47. . Then, in one of the two fertilizer feeding devices 40 connected to the one thin bottom portion 31a located inside the vehicle body of the fertilizer tank 31, one of the two fertilizer feeding devices 40 is provided with the supply port 44 by a lid. It is closed and not used.

As shown in FIGS. 10 to 12, the blower unit 60 includes a blower 62 and an electric motor 63 for driving the blower 62, and the blower 61 and the lower end portions of the respective feeding devices 40. Of the blower duct of the blower 61 and the intake port 6 of the blower 62 of the blower 61.
The air intake duct 68 extends from 2a to the front side of the vehicle body and has an extended end side which is open to the driving portion 10.

As shown in FIG. 12, the intake duct 68 is
The vibration of the muffler cover 13 is sucked into the opening 68a located in the driving part 10 of the engine exhaust muffler 12 to the rear end side of the cylindrical muffler cover 13 which is fitted to the engine exhaust muffler 12. They are connected via a bellows-shaped rubber tube 14 that suppresses transmission to the duct 68.

As shown in FIG. 6, FIG. 10, FIG. 13, FIG. 15, etc., the blower duct 65 has the fertilizer discharge port on the front side of the lower end portion of the feeding case 42 of each of the plurality of fertilizer feeding devices 40. 41, which is a circular pipe-shaped distribution duct portion facing the vehicle body, which is connected to an air intake port 48 which is provided so as to be in line with the front-rear direction of the vehicle body 41 in a straight line, and the distribution duct portion 66. Of the central portion 6a extending downward from the portion 66a located in the central portion in the lateral direction of the vehicle body and facing slightly forward and forming a single part with the central portion 66a.
6a and the introduction duct portion 67 integrally formed. As shown in FIG. 13 and the like, the blower duct 65
The introduction duct portion 67 is disposed in a state of penetrating a vehicle body cover 71 that covers an upper portion of a rear portion of the vehicle body frame at a central portion in the vehicle body left-right direction behind the driver's seat 4. The inlet 67a of the duct portion 67 is connected to the outlet 62b of the blower 62 below the vehicle body cover 71 by a joint 69.

That is, the blower unit 60 sucks the air heated in the muffler cover 13 by the engine exhaust muffler 12 and the temperature of which has risen, through the intake duct 68 by the blower 62 driven by the electric motor 63. The fertilizer-carrying air having a high temperature is generated, and the fertilizer-carrying air is sent from the outlet 62b to the distribution duct part 66 through the introduction duct part 67 of the air duct 65, and is distributed to the plurality of fertilizer feeding devices 40 by the distribution duct part 66. Then, it is supplied from the air intake port 48 of each fertilizer feeding device 40 to the fertilizer discharge port 41.

Feeding roll 43 of each fertilizer feeding device 40
4 is driven by a fertilizer application drive device 80 having a delivery drive shaft 81 composed of a single hexagonal shaft extending laterally of the vehicle body rotatably attached to the rear surface side of the delivery case 42 of each fertilizer delivery device 40 as shown in FIG. Is configured as
The fertilizer application device 80 is configured as shown in FIGS.

That is, the fertilizer application device 80 includes the feeding drive shaft 81, and each of the plurality of rotation support shafts 47 that support the feeding drive shaft 81 and the feeding rolls 43 so as to rotate integrally. Few fertilizer application clutch 90 provided between and the feeding drive shaft 81 as shown in FIGS.
First and second one-way rotating clutches 82 and 83, to which output side rotating bodies 82a and 83a are integrally and rotatably connected,
Input side rotating body 82 of both one-way direction clutches 82, 83
a link mechanism 84 that links b and 83b together,
An operating arm 85 extending integrally rotatably from the input side rotating body 82b of the first one-direction rotating clutch 82, a fertilizer application adjusting mechanism 95 in which an arm side interlocking member 96 is connected to the operating arm 85, A drive rod 86 made of a round bar whose one end side is relatively rotatably connected to the drive side interlocking member 97 of the fertilizer application rate adjusting mechanism 95, and a crank arm 87a is rotatably connected to the other end side of the drive rod 86. And a power take-out mechanism 87 that operates.

As shown in FIGS. 7 and 16, each of the minority fertilizer application clutches 90 is integrally rotatably provided at the end of the rotary support shaft 47 projecting from the fertilizer feeding case 42 to the outside. The output gear 91 is rotatably supported by the feeding drive shaft 81 in a state of meshing with 47a, and the hexagonal shape of the feeding drive shaft 81 is slidably supported by the feeding drive shaft 81. The input side member 92 that rotates integrally with the feeding drive shaft 81
And a clutch main body 90a of a mesh type provided between the input side member 92 and the output side member 91, and a clutch spring 93 for biasing the input side member 92 in a sliding manner. When the operation portion 94 engaged with the operation groove of the side member 92 by the operation pin 94a is rocked, the input side is generated due to the manual operation force transmitted to the operation portion 94 and the operation force by the clutch spring 93. The member 92 feeds the drive shaft 81.
Slidingly with respect to the input side member 92 of the clutch body 90a
By engaging and disengaging the clutch claw of the output claw with the clutch claw of the output gear 91, the rotational force of the feeding drive shaft 81 is transmitted through the input side member 92, the clutch body 90a, and the output side member 91 to the gear portion of the rotation support shaft 47. 47a to transmit the two fertilizer feeding devices 40 into the feeding state so that the feeding rolls 43 of the two fertilizer feeding devices 40 are collectively driven, or by stopping the transmission from the feeding drive shaft 81 to the rotary support shaft 47, the two fertilizer feeding devices are fed. 40 The cutting roll 40 may be in a cut state so as to stop the driving of the feeding roll 43 at once.

As shown in FIGS. 17 and 19, the link mechanism 84 includes a link interlocking link 84a made of a rod whose one end side is connected to the input side rotating body 82b of the first one-direction rotating clutch 82, and this interlocking link 84a. The other end of the link 84a is connected to one arm portion, and the swing link 84b swingably supported by the support member 88 and the other arm portion of the swing link 84b are connected to each other in the second one rotation direction. The feeding roll of each fertilizer feeding device 40 is composed of an interlocking link 84c made of a rod that is interlocked with the input side rotating body 83b of the clutch 83, and reciprocally swings around the axis of the feeding drive shaft 81 of the operation arm 85. It is possible to drive 43. That is, when the operation arm 85 is rocked to the upward side (arrow A side in FIG. 17), the turning force of the operation arm 85 is transmitted to the delivery drive shaft 81 by the first one-way rotation clutch 82. At this time, the interlocking link 84a pivots the rocking link 84b due to the turning power of the input side rotating body 82b of the first one-way rotating clutch 82, and the rocking link 84b moves to the second via the interlocking link 84c. The input side rotating body 83b of the one-way rotation clutch 83 is rotationally operated, but the input side rotating body 83b is rotationally operated in a rotation direction opposite to the feeding direction and idles with respect to the output side rotating body 83a. Then, the operation arm 85 moves downward (see FIG. 17).
When it is rocked to the arrow B side), the input side rotating body 82b of the first one-way rotating clutch 82 idles with respect to the output side rotating body 82a. At this time, the interlocking link 84a pivots the rocking link 84b due to the turning power of the input side rotating body 82b of the first one-way rotating clutch 82, and the rocking link 84b moves to the second via the interlocking link 84c. The input side rotating body 83b of the one-way rotation clutch 83 is rotationally operated in the delivery direction, and the link mechanism 84 drives the delivery drive shaft 81 via the second one-way rotation clutch 83.

As shown in FIG. 4 and the like, the power take-out mechanism 8
Reference numeral 7 takes out this driving force from the middle of the rotary shaft 73 that transmits the driving force from the engine 11 to the rear wheel driving case 72 in FIG. 1 and drives the crank arm 87a to rotate by this driving force. Crank arm 87 that rotates
The drive rod 86 is reciprocally driven by a.

As a result, the fertilizer application drive device 80 drives the crank arm 87a by the driving force of the rotary shaft 73 which transmits power to the left and right rear wheels 2, and reciprocally drives the drive rod 86 by the crank arm 87a. The reciprocating power of 86 is transmitted to the operation arm 85 via the fertilizer application rate adjusting mechanism 95, and the operation arm 85 is reciprocally rocked around the axis of the feeding drive shaft 81. By this operation arm 85, a pair of one-way rotation clutches are provided. The feeding drive shaft 81 is driven to rotate through 82 and 83 and the link mechanism 84, and the driving force of the feeding drive shaft 81 is fed to the feeding roll 4 of each fertilizer feeding device 40.
The feed roll 43 of each fertilizer feeding device 40 is driven so as to rotate only in a predetermined feeding rotation direction by transmitting to the rotation support shaft 47 of No. 3 via the minority fertilization clutch 90.

That is, the fertilizer application S is adapted to perform fertilizer as follows. That is, the feeding roll 43 of each fertilizer feeding device 40 of the fertilizer feeding device section 30 is driven by the fertilization drive device 80 which uses the driving force of the rotary shaft 73 for transmitting power to the left and right rear wheels 2 as a power source, and the feeding roll is fed. The granular fertilizer is fed from the fertilizer tank 31 by 43, and is fed to the fertilizer discharge port 41 at a set amount determined by the volume of the concave portion 43a and the number of shutters 45 that are opened, and the fertilizer is blower of the blower unit 60. Groove fertilizer application tool 70 through the fertilizer supply channel 50 by the fertilizer carrier air supplied to the fertilizer discharge port 41 by the air blower 61 and the air duct 65.
Each of the grooving fertilizer fertilizers 70 forms a groove on the rice field near the lateral side of the seedling planted by the seedling planting mechanism 22, and the fertilizer is dropped inside the groove.

Then, in each fertilizer feeding device 40,
By opening and closing the two shutters 45 by the feeding amount adjusting tool 46, the feeding amount of the fertilizer is turned on and off, and the feeding amount of the fertilizer is adjusted. That is, when both of the two shutters 45 are operated to the closing side, the supply port 44 is fully closed, the fertilizer is not supplied to the feeding roll 43, and the feeding of the fertilizer is cut off. When both of the two shutters 45 are operated to the open side, the supply port 44 is in a fully opened state, and the feeding recess 43a in one half of the feeding roll 43 on one side.
Then, the fertilizer is supplied to both of the feeding recesses 43a on the other half of the other side, and the feeding amount of the fertilizer becomes small and the feeding amount per unit time increases. On the other hand, when one of the two shutters 45 is operated to open and the other to close, the supply port 44 is in a half-opened state, and only one of the feeding rolls 45 has a feeding concave portion 43a on one half thereof. The fertilizer will be supplied, and the amount of fertilizer to be fed will be reduced and the amount of feed per unit time will be reduced.

As shown in FIG. 18, the fertilizer application adjusting mechanism 95 includes the arm side interlocking member 96 made of a sheet metal member.
One end of the arm side interlocking member 96 is connected to the operation arm 8
5, a connecting screw 98 for tightening and connecting to the back plate portion 85a of 5,
The drive side interlocking member 97, which is made of a sheet metal member having a U-shaped cross section, and the end portion of the drive rod 86 is connected by a connecting pin 97a, and the back plate portion 97b of the drive side interlocking member 97 are connected to the arm. The adjustment screw 99 is connected to the back plate portion 96a of the side interlocking member 96.

The arm side interlocking member 96 is provided with a plurality of positioning pins 96b fixedly provided on a pair of lateral plate portions thereof, which are arranged on the vertical plate portion of the operating arm 85 side by side in the longitudinal direction of the operating arm 85. It is configured to be connected to a selected one of the positioning recesses 85b and tightened and connected to the back plate portion 85a of the operation arm 85 by the connecting screw 98. That is, the arm side interlocking member 96
When the tightening of the connecting screw 98 to the operation arm 85 is released, the screw hole 85c for the connecting screw 98 of the operating arm 85 is a long hole, so that the arm side interlocking member 96 together with the connecting screw 98 with respect to the operating arm 85. Slide adjustment can be performed, and by performing this slide adjustment, the positioning recess 96 of the operation arm 85 into which the positioning pin 96b enters
By changing b, the connecting position of the arm side interlocking member 96 with respect to the operation arm 85 changes in the longitudinal direction of the operation arm 85 at a position change pitch determined by the pitch of the positioning recesses 85b.

The positioning of the drive-side interlocking member 97 is performed by rotationally adjusting the adjusting member 99a, which is a nut attached to the other end of the adjusting screw 99, one end of which is fixed to the drive-side interlocking member 97. Since the pin hole 97c through which the pin 96b is inserted and the pin hole 96c into which the end of the connecting pin 97a of the arm side interlocking member 96 is inserted are long holes, the arm side of the drive side interlocking member 97 is formed. The connection position with respect to the interlocking member 96 is the operation arm 8
5, the position changing pitch is determined by the screw pitch of the adjusting screw 99 and is smaller than the position changing pitch of the arm side interlocking member 96 with respect to the operation arm 85. I am doing it.

As a result, the fertilizer application rate adjusting mechanism 95 transmits the reciprocating power of the drive rod 86 to the operation arm 85 via the drive side interlocking member 97 and the arm side interlocking member 96, so that the drive rod 97 operates the operation arm 85. It is possible to drive. Then, the operation arm 8 of the arm side interlocking member 96
5, the connecting position of the drive rod 86 on the operating arm 85 is changed in the longitudinal direction of the operating arm 85 at a relatively large change pitch, and the operating arm 85 is driven by the drive rod 86 to swing. The angle is roughly changed, and the fertilizer feeding amount per unit time in each fertilizer feeding device 40 is roughly adjusted. Then, by changing the connecting position of the drive side interlocking member 97 to the arm side interlocking member 96, the drive rod 8 in the operation arm 85 is changed.
By changing the connecting position of 6 in the longitudinal direction of the operation arm 86 with a relatively small change pitch, the swing angle at which the operation arm 85 is driven by the drive rod 86 is changed finely, and the unit time in each fertilizer feeding device 40 is changed. Finely adjust the amount of fertilizer to be fed.

The plurality of fertilizer supply paths 50 which are separately connected to the plurality of fertilizer discharge ports 41 of the fertilizer supply device section 30.
6, each of them is made as a separate part from the feeding case 42 of the fertilizer feeding device 40 and is connected to the fertilizer discharge port 41 of the fertilizer feeding device 40 at the base end side by a joint 51a. A resin pipe member 51, a flexible hose 52 whose one end side is connected to the tip end side of this pipe member 51 by a joint 51a, and this hose 52 as shown in FIG.
The air venting mechanism 55 to which the inlet of the fertilizer supply pipe 56 is connected to the other end side, and the outlet of the fertilizer supply pipe 56 of the air venting mechanism 55 is connected to the grooving fertilizer implement 70 as shown in FIG. It is constituted by a flexible resin pipe member 53.

The fertilizer supply device section 30 is shown in FIGS.
Due to the mounting structure shown in FIG.
Supported by.

That is, the connecting member 10 is provided on the upper part of one rear end side of the pair of left and right sheet metal body frames 75 which are respectively erected upright on the rear portions of the pair of left and right body main frames 5.
The lower end side is connected via 1a and the body frame 7
5, one of the vehicle feeding columns 101 standing upright at the rear of the vehicle
A lower end side of the other sheet-metal body frame 75 connected to the upper end of the other body frame 75 via the connecting member 101a, and a supply column 101 standing upright on the rear side of the other body frame 75; The feeding support frame 10 in which a rear frame portion 103 facing the vehicle body is connected across the upper ends of the columns 101 and is supported by the two feeding columns 101.
2 and a supporting portion 76 of a vehicle body frame 76 formed of a round pipe material in the vehicle body lateral direction, which is connected to the upper end side of the two sheet metal vehicle body frames 75 across intermediate portions in the vehicle body front-rear direction.
a pair of left and right round pillars of tank pipes that are erected on a, and a round pipe material that is connected to the upper ends of the tank pillars 107 and is supported by the tank pillars 107 in a lateral direction of the vehicle body. Each of the tank support 108 and the tank support 108 are provided on the rear side of the driver's seat 4 of the self-propelled vehicle body, and the rear frame portion 103 of the feeding support frame 102 is provided.
Is connected to the rear surface side of the feeding case 42 of each of the feeding devices 40 by a connecting bolt 103a, and is made of a round bar member that is positioned in front of the rear frame portion 103 of the feeding support frame 102 and is lateral to the vehicle body. The frame 104 is connected to the front side of the feeding case 42 of each of the feeding devices 40 by the connecting bolt 10
4a, and the tank support 108 is brought into contact with the front side of each of the lower tapered bottom portions 31a of the fertilizer tank 31 so as to support them.

As shown in FIGS. 22 and 23, a connecting member 109 is attached to each of the pair of left and right tank columns 107 and the front frame portion 104 of the feeding frame body 102 to attach the tank column 107 and the feeding frame body 102. And are connected by a connecting member 109 so as to support each other.

As shown in FIG. 21, the feeding support frame 1 is
Reference numeral 02 denotes the rear frame portion 103 and the front frame portion 104, which are arranged in the front-rear direction of the vehicle body and are parallel to each other, and connect both end portions of the front frame portion 104 and the rear frame portion 103 to each other. A pair of left and right outer connecting frame parts 105 made of strip metal, and a front frame part 104 slightly inside the vehicle body from the outer connecting frame parts 105 and near the connecting member 109.
And a pair of left and right inner connecting frame portions 106 connecting the rear frame portion 103 and the rear frame portion 103.

The blower 61 is shown in FIG. 4, FIG. 13, and FIG.
4, the mounting structure shown in FIG. 15 allows the self-propelled vehicle body to be supported by the pair of vehicle body main frames 5.

That is, a through hole 75a is provided in each of the pair of left and right sheet metal body frames 75, and the blower 61 is
The blower 62 has a rotation shaft center 62c oriented laterally of the vehicle body, and an outlet 62b of the blower 62 oriented upward toward the vehicle body and slightly rearward to face the fertilizer feeding device 40. It is located between the pair of left and right sheet metal body frames 75, and the blower 6
The electric motor 63 of No. 1 is the one body metal frame 7
5, the through-hole 75a is arranged below the driver's seat 4 in a mounting posture in which the intake duct 68 passes through the through-hole 75a of the other sheet metal body frame 75, respectively. The lower end side of the blower case is fastened and connected to the support body 77 fixed to the vehicle body main frame 5 on the one side by connecting bolts, and the sheet metal body frame 7 on the one side through which the electric motor 63 penetrates.
5 through the rubber cushioning material 75b attached around the lower end side of the through hole 75a of the sheet metal body frame 75
The electric motor 63 is received and supported by.

As shown in FIG. 15, the blower duct 65 is provided.
Of the distribution duct portion 66 at the outermost side of the vehicle body connected to the wind intake ports 48 of the two fertilizer feeding devices 40, and the vehicle body adjacent to the two fertilizer feeding devices 40. 2 between the two inner fertilizer feeding devices 40 and the parts connected to the air intake port 48, which are different from the distribution duct part 66.
5, a throttle forming member 113 is internally provided with a throttle portion 114, and the throttle portion 114 branches into both ends of the distribution duct portion 66 at the central portion 66a of the distribution duct portion 66. Flow resistance to the fertilizer-carrying wind and the fertilizer-carrying wind is connected to the windward side of the distribution duct section 66. The fertilizer feeding device 40 inside the vehicle body, and the fertilizer feeding outside the vehicle body connected to the leeward side than this. It is arranged to flow into the device 40 as evenly as possible.

As shown in FIGS. 6 and 8, in each of the feeding cases 42, on the front side of the lower portion of the feeding case 42,
A common residual fertilizer take-out port 49 is provided for the two fertilizer feeding devices 40, 40, and the fertilizer feed-out port 49 is manufactured as a separate component to connect the proximal end side to the residual fertilizer feed-out port 49. A pipe member 127 made of a flexible resin and a flexible hose 128 having one end side connected to the distal end side of the pipe member 127 constitute a residual fertilizer discharge pipe line 129.

That is, as shown in FIG. 29, the valve element 1 positioned inside the residual fertilizer outlet 49 so as to be swingable and openable.
Opening / closing lever 132 attached to the end of the support shaft 131 of 30
By swinging the valve element 130 to the open side through the support shaft 131 to open the residual fertilizer extraction port 49, the residual fertilizer remaining in the feeding cases of the two fertilizer feeding devices 40 is taken out of the residual fertilizer. Outlet 49 to outlet 129
The hose 128 is made to flow down to the outlet port 128a (FIG. 26) formed by the tip end side of the hose 128. If this fertilizer is not taken out, FIG.
As shown in FIG.
By attaching 8a to a hose cap 133 which also functions as a hose holder fixed to the vehicle body, the hose 128 can be stored with its opening closed.

In each fertilizer feeding device 40, as shown in FIG. 30, a cleaning brush 164 for cleaning the feeding roll 43 is provided below the feeding roll 43.
The cleaning brush 164 is fixed to the support portion 165 of the feeding case 42 in a state where the extension line 164b at the center of the extended state of the brush bristle portion 164a is off the rotation axis 43b of the feeding roll 43, and is fed out. The fertilizer is scraped from the feeding recess 43a of the roll 43 by the brush bristle portion 164a.

As shown in FIG. 7, a positioning ring 167 is attached to one end of the rotary support shaft 47 and a portion between the feeding rolls 43. The positioning ring 167 serves to position the pay-out roll 43 with respect to the rotation support shaft 47 in the direction of the rotation support shaft axis.
It is fixed to the rotary support shaft 47 by the fixing structure shown in FIG. That is, the protrusion 47b provided on the rotation support shaft 47 so that the rotation support shaft 47 and the feeding roll 43 are engaged with each other so as to rotate integrally, is provided with a cutout portion 47c as shown in FIG. FIG. 3 provided on the inner peripheral side of 167
The positioning ring 167 is fixedly attached to the rotation support shaft 47 by inserting the locking claw 167a as shown in 2 (a) into the notch portion 47c and engaging the positioning ring 167 and the rotation support shaft 47 with each other. is there.

The fertilizer supply port 42b provided in the delivery chamber in which the delivery roll 43 of the delivery case 42 is located so as to drop the fertilizer from the delivery roll 43 to the fertilizer discharge port 41 is formed into a shape as shown in FIG. There is. That is, the length L2 in the direction along the fertilizer discharge direction at the fertilizer discharge port 41 is larger than the length L1 in the direction along the rotation axis 43b of the feeding roll 43.

Of the plurality of seedling planting mechanisms 22, the one located closest to the left end of the planting machine and the one adjacent to it are turned on and off for the two seedling planting mechanisms 22 so that the left two rows Minority row planting clutch 135 for enabling or stopping seedling planting, and a plurality of seedling planting mechanisms 2
A minority that enables or stops the seedling planting on the right two rows by turning on and off the transmission to the two seedling planting mechanisms 22 of the one located closest to the right end of the planting machine and the one adjacent to it. A row planting clutch 135, and two seedling plantings located in the center other than the two seedling planting mechanisms 22 on the left side and the two seedling planting mechanisms 22 on the right side of the plurality of seedling planting mechanisms 22. A minority row planting clutch 135, which enables or stops seedling planting in the central two rows by turning on and off the power transmission to the mechanism 22, is provided inside the planting case 24, respectively.

A seedling vertical feeding belt 26 provided to vertically feed the seedlings placed on the seedling placing portion at the left end of the seedling placing table 25 and the seedling placing portion adjacent thereto (see FIG. 2)
A vertical feed clutch 136 for enabling or stopping the seedling supply to the two left-hand side seedling planting mechanisms 22 by turning on and off the transmission for the seedlings, and a seedling placing portion at the right end of the seedling placing table 25 and adjacent to this. Supplying seedlings to the two right-sided seedling planting mechanisms 22 by turning on and off the transmission for the seedling vertical feed belt 26 that is provided for vertically feeding the seedlings placed on the seedling placement section. A vertical feed clutch 136 for enabling and stopping the seedling placing section, and a seedling placing section located at two central locations other than the two seedling placing sections on the left side and the two seedling placing sections on the right side of the seedling placing table 25. By turning on and off the transmission to the vertical seedling feeding belt 26 provided to vertically feed the seedlings placed on it, the seedlings can be supplied or stopped to the central two seedling planting mechanisms 22. It is provided with each of the longitudinal feeding clutch 136 for the back side of the seedling table 25.

The minority row planting clutch 135 for turning on and off the transmission of the two left side seedling planting mechanisms 22,
Among the plurality of minority fertilization clutches 90 and the vertical feed clutch 136 for turning on and off the supply of seedlings to the two left-hand side seedling planting mechanisms 22 which are controlled by the minority-row planting clutch 135, the minority-row planting is performed. One minor fertilizer application clutch 90 for turning on and off the fertilizer application corresponding to the two left side seedling planting mechanisms 22 to be controlled by the clutch 135.
That is, one minority fertilizer application clutch 90 that turns on and off the transmission to the two fertilizer feeding devices 40 that supplies fertilizer to the planted seedlings by the two seedling planting mechanisms 22 on the left side is the fertilizer feeding device section 30 and the driving seat 4. It is configured to be operated by a clutch operating device provided with one clutch lever 140 disposed between and, and this clutch operating device is configured as shown in FIG.

That is, as shown in FIG. 22 and the like, the clutch lever 140 is a front end portion of the left side connecting member 109 provided in the mounting structure of the fertilizer feeding device section 30 and protruding forward from the tank column 107. A supporting shaft 109b of a supporting portion 109a provided in the vehicle is supported so as to swing around a lateral axis 140a of the vehicle body.
The inner cable 14 is attached to the base end of the clutch lever 140.
The inner cable 141b in one of the two branch cable portions on the other end side of the operation cable 141 to which one end side of 1a is connected is connected to the swing arm type operation portion 135a of the minority row planting clutch 135 and the other branch cable portion. The inner cables 141b in FIG. 2 are respectively connected to the swing arm type operation portion 136a of the vertical feed clutch 136, and the end portion of the outer cable 141c of the operation cable 141 on the clutch lever side is fixed and the feeding support frame 102 described above is connected. By connecting the swinging link 142 swingably supported by the rear frame 103 to the operating portion 94 of the minor fertilizer application clutch 90 by the interlocking rod 143, the clutch lever 140 is moved to the clutches 90, 1.
The operation parts 94, 135a and 136a of 35 and 136 are interlocked with each other.

That is, the clutch lever 140 is swung up and down around the axis 140a, and the clutch lever 140 is entirely sized in the longitudinal direction of the fertilizer tank 31 as shown by the solid line in FIG. Is retreated to the vehicle body rear side from the foremost end of the fertilizer feeder 30 composed of the front surface 31d at the upper end, and inside the front and rear width of the fertilizer tank 31 as the maximum front and rear width of the fertilizer feeder 30. Entering operation position ON
When operated, the inner cables 141b in the respective branch cable portions are loosened and the operation portions 135a, 136 are operated.
a is a minority row planting clutch 135, longitudinal feed clutch 136
It swings to the entry side by the entry restoring force that the
The outer cable 141c is loosened to operate the operation portion 94.
Is swung to the entry side by the entry restoring force of the clutch spring 93 of the minority fertilization clutch 90, and the minority planting clutch 135, the vertical feed clutch 136, and the minority fertilization clutch 90 are in the engaged state. That is, seedling planting and fertilization on the left two rows are possible.

On the other hand, as shown by the solid line in FIG. 5, the clutch lever 140 is in the ascending mounting state in which the front end side of the clutch lever 140 projects forward from the front end 31d of the fertilizer feeding device section 30. Cutting operation position OFF
When it is operated to, the inner cable 141b in each branch cable portion is pulled and the operation portion 135a, 1
The outer cable 14
When the lever side end of 1c is pushed, the swing link 142
Also, the operating portion 94 is rocked to the cut position via the interlocking rod 143, and the minority row planting clutch 135, the vertical feed clutch 136, and the minority quantity fertilization clutch 90 are each in the cut state. That is, the seedling planting and fertilization of the left two rows stop.

The minority row planting clutch 135, the longitudinal feed clutch 136 and the minority row fertilization clutch 90, which enable or stop the two-row planting and fertilization, are provided in the attachment structure of the fertilizer supply unit 30. The clutch lever 1 is swingably supported by a support shaft 109b of a supporting portion 109a provided at a front end portion of the connecting member 109 of the connecting member 109 projecting forward from the tank support 107.
According to 40, the clutches 135, 136 and 90 are both switched to the disengaged state or are switched to the common engagement state. The minority row planting clutch 1 which enables or stops the seedling planting and fertilization of the central two rows
35, longitudinal feed clutch 136 and minority fertilizer application clutch 9
0 is a clutch lever 140 supported by the support portion 109a of the left-side connecting member 109 provided in the attachment structure of the fertilizer supply device portion 30 so as to be vertically swingable, so that each of the clutches 135, 136 and 90 is It is configured to perform a switching operation so as to be in a cut-off state or in a joint state. The operation position OFF for switching each clutch of the clutch lever 140 to the disengaged state and the operation position ON for switching each clutch to the disengaged state are also included in the clutch lever 140 for seedling planting and fertilizing ON / OFF of the left two rows. It is set in the same way as the operation position OFF and ON. In addition, each clutch lever 140 also
Similarly to the clutch lever 140 for seedling planting on the left side and for turning on / off of fertilizer application, a minority row planting clutch 135 and a longitudinal feed clutch 136 are connected via an operation cable 141 provided with a pair of branch cable portions on the clutch side. It is linked to. However, with regard to the clutch lever 140 that performs seedling planting of the two central rows and two rows on the right side and turns on and off the fertilizer application, the end of the outer cable 141 of the operation cable on the lever side is directly fixed to the operation section 94 of the minor fertilizer application clutch 90. And is linked to the minority fertilization clutch 90. Further, the pair of minority fertilizer application clutches 90 for turning on and off the two central fertilizer applications are interlocked with the clutch lever 140 by connecting the operating portions 94 with the interlocking rod 143.

As shown in FIGS. 27 and 28, one end portion of the rear frame portion 103 of the feeding-out support frame 102 causes the shaft core 17 to move.
A swing lever type clutch collective operation tool 171 which is swingably supported around 1a, and an interlocking rod 172 whose one end side is rotatably connected to an output arm portion 171b of the clutch collective operation tool 171. A clutch operation for collectively operating all of the minor fertilizer application clutches 90 by an operating rod 173, which is formed by a strip plate that is long in the lateral direction of the vehicle body and has one end side relatively rotatably connected to the other end side of the interlocking rod 172. Device 1
70 is configured.

A connecting pin 174, which is formed by the end portion of the rod for which the interlocking rod 172 is manufactured, and which connects the interlocking rod 172 to the operating rod 173, slides on the long hole 103b of the rear frame 103 facing the vehicle body. The operation rod 173 is slidably inserted into the rear side of the frame 103, and the end of the operation rod 173 is slidably attached to the rear end of the operation rod 173. And the rear frame 103
The other end of the operating rod 173 is slidably attached to the upper surface side of the rear frame portion 103 by the support pin 175 attached to the clutch collective operation tool 171.
When the rocking operation is performed around 1a, this operation force is applied to the interlocking rod 1.
It is configured to be transmitted to one end side of the operating rod 173 by 72, and the operating rod 173 slides in the lateral direction of the vehicle body by being guided by the elongated hole 103b of the rear frame portion 103 and the support pin 175. When the clutch collective operation tool 171 is operated to the disengaged position OFF, the operation rod 173 is slid in the disengagement direction off shown in FIG. 28, and one of the operation portions 173 a provided at a plurality of positions of the operation rod 173 is When the minority fertilizer application clutch 90 for turning on and off the two fertilizer application on one lateral side of the vehicle body is in the engaged state, the operating member 94 of the minority fertilizer application clutch 90 is pressed to operate the minority fertilizer application clutch 90. When the operation is switched to the cut state, and the other one of the plurality of operating portions 173a is in the engaged state of the minority fertilizer application clutch 90 that engages and disengages the two fertilizer application inside the vehicle body, the minority fertilizer application clutch 90 The operation member 94 is pressed to switch the minority fertilizer application clutch 90 to the disengaged state, and yet another one of the plurality of operation portions 173a is located outside the other vehicle body. The minority fertilization clutch 90 for inputting / disconnecting two fertilizers is pressed against the swinging link 142 that is interlocked with the operating member 94, and the minority fertilization clutch 90 is switched to the disengaged state. is there. At this time, since the operation member 94 does not operate the inner cable 141a of the operation cable 141, the clutch lever 140 is moved to the clutch engaged position O.
The minor fertilizer fertilizer clutch 90 is switched to the disengaged state while being set to N. From this state, the clutch collective operation tool 1
When the clutch 71 is operated to the clutch engagement position ON, the operating rod 1
28 is slid in the entering direction on shown in FIG. 28, each of the operating portions 173a releases the pressing operation on the operating member 94 and the swing link 142, and the minor fertilizer application clutch 90 is operated by the clutch spring 93. Return to the ON state and operate.

That is, in the clutch operating device 170, by operating the clutch collective operation tool 171 to the clutch disengaged position OFF, each clutch lever 140 is operated.
Even when the clutch engagement position is ON, only the minority fertilizer application clutch 90 of the minority fertilizer application clutch 135 and the minority fertilizer application clutch 90 can be switched to the disengaged state in preference to the clutch lever 140. As a result, each clutch lever 140 is operated to the clutch engaged position ON, and the clutch collective operation tool 171 is operated to the clutch disengaged position OFF.
By operating all of the minority fertilizer application clutch 90
While each is in the cut state, each minority row planting clutch 135 is put in the engaged state and each seedling planting mechanism 22 is driven, so that the whole number of rows can be planted without fertilization.

As shown in FIG. 5, each clutch lever 14
When the seedling planting device 20 is lifted and operated in a non-working state, the clutch lever 140 disengages the swinging link 146 that is connected to 0 through the operating rod 145.
If it is F, the clutch lever 140 is automatically turned on and switched to the operation position ON to automatically switch each of the minority row planting clutch 135, the vertical feed clutch 136 and the minority fertilization clutch 90 to the entrance side. Is. That is, if the clutch lever 140 is in the disengaged position when the seedling planting device 20 is operated to be raised,
The swing link 146 is swing-operated by the ascending drive force of the link mechanism 6, and the clutch lever 140 is switched to the ON operation position ON via the operation rod 145.

[Brief description of drawings]

[Figure 1] Side view of the entire riding rice transplanter with fertilizer application

FIG. 2 is a plan view of the entire riding-type rice transplanter with a fertilizer application device.

[Figure 3] Side view of the planting device

[Figure 4] Rear view of fertilizer feeder

[Figure 5] Side view of fertilizer feeder

[Figure 6] Vertical side view of the fertilizer feeding device

[Figure 7] Rear view of the vertical section of the fertilizer feeding device

FIG. 8 is a front view of the fertilizer feeding device.

FIG. 9 is a plan view of the feeding case.

FIG. 10 is a plan view of the blower unit.

FIG. 11 is a side view of a blower unit.

FIG. 12 is a cross-sectional view of an air intake duct tip portion and a muffler cover.

FIG. 13 is a left side view of the blower installation section.

FIG. 14 is a right side view of the blower installation section.

FIG. 15 is a plan view of a blower installation section.

FIG. 16 is a plan view of a minority fertilizer application clutch.

FIG. 17 is a side view of the fertilizer application rate adjusting mechanism.

FIG. 18 is a sectional view of a fertilizer application rate adjusting mechanism.

FIG. 19 is a plan view of the link mechanism.

FIG. 20 is a rear view showing the arrangement of the air venting mechanism and the furrowing device.

FIG. 21 is a plan view of a feeding support frame.

FIG. 22 is a side view of a clutch lever arrangement portion.

FIG. 23 is a plan view of a clutch lever arrangement portion.

FIG. 24 is an explanatory view showing an operating position of a clutch lever.

FIG. 25 is a cross-sectional view showing a throttle portion of the air duct.

FIG. 26 is a front view showing the storage state of the hose of the discharge pipe line.

FIG. 27 is a schematic plan view of a clutch operating device.

FIG. 28 is a plan view of the minority fertilizer application clutch.

FIG. 29 is a side view of the opening / closing lever arrangement portion.

FIG. 30 is a vertical cross-sectional side view of the cleaning brush arrangement portion of the feeding device.

FIG. 31 is a sectional view showing a mounting structure of a positioning ring.

FIG. 32 (a) is a sectional view of the positioning ring, (b).
Is a cross-sectional view of the feeding roll rotation spindle.

FIG. 33: Plan view of fertilizer supply port

[Explanation of symbols]

4 driver's seat 20 Seedling planting equipment 22 Seedling planting mechanism 30 Fertilizer supply unit 30d Frontmost end of fertilizer feeder 40 Fertilizer feeding device 43 Feeding roll 43b Rotating shaft center of the feeding roll 49 Residual fertilizer outlet 85 Operation arm 86 Drive rod 87a crank arm 90 Minority fertilizer clutch 96 Arm side interlocking member 97 Drive side interlocking member 127 pipe members 128 hose 128a outlet 129 Discharge pipeline 135 Minority planting clutch 140 Clutch lever (clutch operation tool) 164 Cleaning brush 164b Extension of cleaning brush 171 Clutch collective operation tool S Fertilizer

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shigeyoshi Amishiro             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory F term (reference) 2B052 BC05 BC08 BC09 BC16 DA01                       EA02 EA12 EB08 EB13 EC03                       EC19 ED03 ED08                 2B060 AA10 AC03 BA04 BA07 BA09                       BB06 BB08 BB09

Claims (5)

[Claims] 1. A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in a lateral direction of the airframe is connected to a rear portion of a self-propelled vehicle so as to be vertically movable, and a seedling planting portion by the plurality of seedling planting mechanisms is connected. A rice transplanter with a fertilizer application, which is equipped with a fertilizer supply device for separately supplying fertilizers in the vicinity of each of the plurality of seedling planting mechanisms, and each of which can be operated by freely entering and leaving a plurality of minority row planting clutches. In preparation for the above, the minority article fertilizer clutch for turning on and off the fertilizer application corresponding to a part of the plurality of seedling planting mechanisms is provided separately for each operation, and the minority article is the same seedling planting mechanism to be controlled. One clutch operation tool for interlocking and switching the planting clutch and the minority fertilizer application clutch is provided corresponding to each of the plurality of minority fertilizer application clutches and the minority fertilizer application clutch, and the plurality of clutches. A plant with fertilizer application, which is equipped with one clutch collective operation tool for switching the plurality of minority fertilizer application clutches to the disengagement side while maintaining the plurality of minority fertilizer planting clutches on the entry side in preference to the touch operation tool. Machine. 2. A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the lateral direction of the machine body is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and a seedling planting portion by the plurality of seedling planting mechanisms is connected. A rice planting machine with a fertilizer application, which is equipped with a fertilizer supply device that separately supplies fertilizers in the vicinity of, by a minority row planting clutch for turning on and off transmission to a part of the plurality of seedling planting mechanisms, and this minority number planting clutch. A fertilizer supply device section in the fertilizer application, and a fertilizer supply apparatus section for a clutch lever that interlocks with a minority fertilizer application clutch that turns on and off fertilizer application corresponding to the part of the seedling planting mechanism that is turned on and off. It is provided between the driver's seat located on the front side of the
Further, the rice transplanter with a fertilizer application installed such that, in the clutch engaged position, the entire clutch lever is installed so as to be in a mounted state in which the fertilizer supply device is retracted rearward from the frontmost end of the fertilizer supply device. 3. A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the lateral direction of the airframe is connected to a rear portion of the self-propelled vehicle so as to be vertically movable, and a seedling planting portion by the plurality of seedling planting mechanisms is connected. A rice transplanter with a fertilizer application, which is equipped with a fertilizer supply device for separately supplying fertilizers in the vicinity of, and is reciprocated by a swingable operation arm that drives a fertilizer feeding device in the fertilizer application and a crank arm that can be driven and rotated. An arm side interlocking member that is connected to the operation arm so as to be positionally adjustable in the longitudinal direction of the operation arm between the drive rod that is driven and transmits power to the operation arm, and the arm side. The interlocking member is connected to the arm-side interlocking member at a position change pitch smaller than the position change pitch with respect to the operation arm so that the position change is adjustable in the longitudinal direction of the operation arm, and Fertilizing device with planting machine drive rod is provided with a drive-side interlocking member which connects relatively rotatably. 4. A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the lateral direction of the machine body is movably connected to the rear part of the self-propelled vehicle body, and the seedling planting parts by the plurality of seedling planting mechanisms are connected. A rice transplanter with a fertilizer application equipped with a fertilizer supply device for separately supplying fertilizers in the vicinity of the Fertilizer application composed of a non-flexible pipe member whose end side is connected, and a flexible hose whose one end side is connected to the tip end side of this pipe member and whose outlet is formed at the other end side Rice transplanter with device. 5. A seedling planting device having a plurality of seedling planting mechanisms arranged side by side in the machine body is connected to the rear part of the self-propelled vehicle so as to be vertically movable, and a seedling planting portion by the plurality of seedling planting mechanisms is connected. A rice transplanter with a fertilizer application, which is equipped with a fertilizer application device for separately supplying fertilizers in the vicinity of, and a cleaning brush that acts on a payout roll that can be driven and rotated about a horizontal axis in a fertilizer payout device of the fertilizer applicator. Is a rice transplanter with a fertilizer application, which is provided on the lower side of the feeding roll with the extension line of the brush deviating from the rotation axis of the feeding roll.