JP2015092878A - Paddy working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paddy working machine that has a self-propelled vehicle provided with a paddy working part with a plurality of ground working parts linked through a link mechanism at the rear of a self-propelled vehicle and acting on work places of a plurality of streaks, and with a fraction streak clutch for switching a portion of the ground working part of the plurality of ground working parts between an operation state and a stopped state, and is provided with a clutch lever for switching and operating the fraction streak clutch in the paddy working part, in which the interference of an operation cable for interlocking and connecting the fraction streak clutch with the clutch lever to the link mechanism is prevented.SOLUTION: Operation cables 51L, 51N, 51R include a bypass site 51U for bypassing a link mechanism 8 in the vehicle body lateral outside direction, and are disposed over the self-propelled vehicle and a paddy working part 20.

Description

  The present invention is connected to a self-propelled vehicle and a rear portion of the self-propelled vehicle through a link mechanism so as to be able to be moved up and down in a descending work state and an ascending non-working state, and a plurality acting on a plurality of work locations in a field A fractional clutch that switches a part of the plurality of ground working units to an active state and a stopped state, and a self-propelled vehicle. It is related with the paddy field machine provided in one side with the said paddy field operation part.

  The paddy field machine described above is capable of changing the number of lines to be worked by switching a part of the ground working parts of the plurality of ground working parts to an active state and a stopped state by a fractional clutch. Is.

  Conventionally, as this type of paddy field machine, there has been a rice transplanter with a fertilizer application disclosed in Patent Document 1, for example. In this rice transplanter, a seedling planting device (corresponding to a paddy field working unit) connected to the rear part of the self-propelled vehicle body is provided, and a plurality of seedling planting mechanisms (corresponding to the ground working unit) are included in the seedling planting device. A line-planting clutch (corresponding to a fraction-line clutch) is provided, and a clutch lever that operates a small number of line-planting clutches via an operation cable is provided in the self-propelled vehicle.

JP 2003-310017 A

If the operating part of the fractional clutch and the clutch lever are interlocked and connected by the operating cable provided across the self-propelled vehicle and the paddy field working part, the operation cable will bend as the paddy field working part goes up and down. Therefore, it is not necessary to provide a special means for allowing the paddy field working section to move up and down in the interlocking system of the fractional clutch and the clutch lever.
When the operation cable is provided along the link mechanism, problems such as interference between a member attached to the link mechanism and the operation cable link easily occur.

  The objective of this invention is providing the paddy field machine which can avoid interference with a link mechanism etc. and an operation cable.

In the paddy field machine according to the first invention,
A self-propelled vehicle and a plurality of ground working units connected to a rear portion of the self-propelled vehicle so as to be able to be moved up and down in a descending work state and a non-lifting working state via a link mechanism and acting on a plurality of work sites in a field A paddy field working section equipped with
A fractional clutch that switches a part of the plurality of ground working units to an active state and a stopped state is provided on one of the self-propelled vehicle and the paddy field working unit,
A clutch lever for switching the fractional clutch is provided on the other side of the self-propelled vehicle and the paddy field working unit,
An operation cable for interlockingly connecting the operation portion of the fractional clutch and the clutch lever;
The operation cable is provided across the self-propelled vehicle and the paddy field working unit in a state of having a detour portion that detours the link mechanism in the laterally lateral direction of the vehicle body.

  According to the configuration of the first aspect of the present invention, the operation cable bypasses the link mechanism in the laterally lateral direction of the vehicle body by the detoured portion, and the operation cable that bypasses the vehicle body upward direction is adopted, so that the self-propelled vehicle can perform paddy work. The operation cable and the link mechanism can be sufficiently separated so that the operation cable does not touch the link mechanism or the attached member of the link mechanism, while avoiding the detour portion being an obstacle when performing the work on the part. .

  In addition, the bending radius of the operation cable can be increased and the operating resistance of the operation cable can be suppressed to a small value, compared with the case where the operation cable is provided along the link mechanism.

  Therefore, according to the first aspect of the present invention, the operation cable is used for the interlocking connection between the fractional clutch and the clutch lever, and the operation from the self-propelled vehicle to the paddy field working unit is performed without any trouble by the operation cable. Although it is easy, it does not cause the operation cable to contact the link mechanism or the like, and can improve the service life of the operation cable. In addition, the operation of the fractional clutch can be lightened.

  In this 2nd invention, the said detour site | part becomes horizontal or substantially horizontal in the said descent | fall operation | work state of the said paddy field operation part.

  When the paddy field working unit is lifted or lowered, the paddy field working unit side of the operation cable moves up and down with the self-propelled vehicle side as a swing fulcrum, and the paddy field working unit side is displaced in the front-rear direction. According to the second aspect of the present invention, even when the paddy field working unit is moved up and down over a wide adjustment range in the descending work state, the amount of longitudinal displacement on the paddy field working unit side of the operation cable accompanying the lifting adjustment can be made relatively small. The deterioration of the operation cable can be prevented or suppressed.

  In the third aspect of the invention, the vehicle body lateral outer edge at the bypass portion is located at the same or substantially the same position as the lateral lateral edge of the self-propelled vehicle in the vehicle lateral direction.

  According to the third aspect of the present invention, the distance at which the detoured portion of the operation cable is separated from the link mechanism can be made as long as possible while avoiding or suppressing the protrusion of the operation cable to the vehicle body lateral outer side.

  In the fourth aspect of the invention, a plurality of the fractional clutches are provided, and the operation cable is provided with a plurality of operation cables for interlockingly connecting the operation parts of the plurality of fractional clutches to the clutch lever. The link mechanism is detoured in the same direction of the vehicle body left lateral outside direction or the vehicle body right lateral outside direction.

  According to the fourth aspect of the present invention, a plurality of operation cables are arranged in a state in which the link mechanism is detoured in the laterally lateral direction of the vehicle body by the respective detour portions. Can be deployed in a compact and rounded state.

  In the fifth aspect of the invention, the clutch lever includes a plurality of clutch levers to which the plurality of operation cables are individually connected.

  According to the fifth aspect of the present invention, the clutch lever can always be interlocked and connected to the operation portion of each of the plurality of fractional clutches by the operation cable, and a predetermined fractional clutch among the plurality of fractional clutches can be operated. By operating the corresponding clutch lever, it can be operated quickly.

In the sixth aspect of the invention, the paddy field working unit includes a plurality of seedling planting mechanisms arranged in a lateral direction of a vehicle body, and a seedling mount for feeding seedlings to the plurality of seedling planting mechanisms, and the plurality of ground work As a part, provided with a plurality of powder supply parts for supplying powder separately in the vicinity of the seedling planting location by the plurality of seedling planting mechanism,
The self-propelled vehicle is provided with a plurality of feeding mechanisms for feeding powder from a powder tank, and each of the plurality of feeding mechanisms is provided with one of the plurality of powder feeding units. It is configured to be supplied to the granular material supply part of the part, and is configured to act separately on each of the plurality of feeding mechanisms as the fractional clutch, and is configured to turn on and off the transmission to the feeding mechanism A plurality of fraction feeding clutches provided in the self-propelled vehicle are provided, and the clutch lever is supported on the back side of the seedling platform.

  According to the sixth aspect of the present invention, seedling planting work by the seedling planting mechanism and powder body supplying work for supplying fertilizer and the like to the vicinity of the planted seedling can be performed. By turning on and off the transmission to each of the plurality of feeding mechanisms by the fraction feeding clutch, it is possible to change the number of workings for supplying the granular material. The clutch lever can be operated while looking backward from the self-propelled vehicle in order to change the number of work items for supplying the granular material, and the change operation can be appropriately performed.

  In the seventh aspect of the present invention, the seedling stage is provided with a vertical feeding belt that vertically feeds seedlings toward the seedling planting mechanism, and the clutch lever is located on the upper end side of the seedling stage with respect to the vertical feeding belt. ing.

  According to the seventh aspect of the present invention, the height of the clutch lever when the paddy field working portion is lowered to the descending work state can be easily seen from the self-propelled vehicle, and the clutch lever can be easily operated from the self-propelled vehicle. .

  In the eighth invention, the clutch lever and the feeding mechanism are located at the same height in the descending work state of the paddy field working unit.

  According to the eighth aspect of the present invention, in the state where the paddy field working portion is in the descending work state, the height of the clutch lever side and the feeding mechanism side of the operation cable is the same or close to the same, and the paddy field working portion is lowered The bypass portion of the operation cable in the working state can be made horizontal or nearly horizontal. Therefore, even if the paddy field working part is adjusted up and down over a wide adjustment range in the descending work state, the amount of longitudinal displacement on the paddy field working part side of the operation cable accompanying the lifting adjustment can be made relatively small, and the operation cable is deteriorated. Can be prevented or suppressed.

  In the ninth aspect of the present invention, the paddy field working section is provided with a fractional row planting clutch that engages and disengages transmission to the seedling planting mechanism corresponding to the partial feeding mechanism that is operated by the fractional strip feeding clutch. A planting operation cable that interlocks and connects the operation portion of the fractional planting clutch and the clutch lever is provided, and a portion of the operation cable that extends between the detour portion and the clutch lever is on the back side of the seedling platform. The planting operation cable is deployed in the vertical direction of the seedling platform, and the planting operation cable is deployed in the vertical direction of the seedling platform on the back side of the seedling platform.

  According to the ninth aspect of the present invention, the operation of switching the feeding mechanism and the seedling planting mechanism corresponding to the feeding mechanism can be performed only by operating the clutch lever, and the number of working lines for seedling planting and powder supply can be changed. The part of the operation cable that extends between the detour part and the clutch lever is located laterally on the back side of the seedling stage, and the planting operation cable is located vertically on the rear side of the seedling stage. A simple structure in which the operation cable and the planting operation cable are compactly arranged on the back surface side of the seedling stand and the necessary length provided for the operation cable and the planting operation cable is minimized.

  In the tenth aspect of the present invention, the portion of the operation cable that extends between the bypass portion and the clutch lever intersects with the planting operation cable as viewed in the longitudinal direction of the vehicle body.

  According to the tenth aspect of the present invention, the operation force generated by operating the operation lever is efficiently applied to the operation cable and the planting operation cable while the operation cable and the planting operation cable are compactly arranged on the back side of the seedling stage. It is possible to transmit and smoothly switch between the fractional stripe clutch and the fractional stripe planting clutch.

In the paddy field working machine according to the eleventh invention,
A self-propelled vehicle and a plurality of ground working units connected to a rear portion of the self-propelled vehicle so as to be able to be moved up and down in a descending work state and a non-lifting working state via a link mechanism and acting on a plurality of work sites in a field And a paddy field working section equipped with
A plurality of fractional clutches for switching a part of the plurality of ground working units to an active state and a stopped state are provided on one of the self-propelled vehicle and the paddy field working unit,
A plurality of clutch levers for switching the plurality of fractional clutches separately are provided on the other of the self-propelled vehicle and the paddy field working unit,
A plurality of operation cables for interlockingly connecting the operation portions of the plurality of fractional clutches to the plurality of clutch levers;
The plurality of operation cables are provided across the self-propelled vehicle and the paddy field working unit in a state including a detour portion that detours the link mechanism in the same direction of the vehicle body left outside direction or the vehicle body right outside direction,
The detour portion of the plurality of operation cables is horizontal or substantially horizontal in the descending work state of the paddy field working unit,
A laterally outer end of the vehicle body at the bypass portion of the plurality of operation cables is located at the same or substantially the same position as the laterally outer end of the self-propelled vehicle in the lateral direction of the vehicle body.

  The eleventh invention has the same functions and effects as those provided by the first to fifth inventions.

In the paddy field working machine according to the twelfth invention,
A self-propelled vehicle, and a paddy field working unit connected to the rear part of the self-propelled vehicle via a link mechanism so as to be able to be moved up and down in a descending working state and a rising non-working state,
The paddy field working unit includes a plurality of seedling planting mechanisms arranged in a lateral direction of the vehicle body, a seedling platform for feeding seedlings to the plurality of seedling planting mechanisms, and a vicinity of a seedling planting site by the plurality of seedling planting mechanisms. Separately provided with a plurality of powder supply parts for supplying powder,
The seedling stage includes a longitudinal feeding belt that longitudinally feeds the placed seedling toward the seedling planting mechanism,
A plurality of fractional planting clutches that switch the part of the seedling planting mechanism between the working state and the stopped state by turning on and off the transmission to a part of the seedling planting mechanism of the plurality of seedling planting mechanisms, In preparation for the paddy field working section,
The self-propelled vehicle is configured to feed a granular material from a granular material tank, and supply a plurality of feeding mechanisms to a part of the plurality of granular material supplying units. And a plurality of fraction feeding clutches for switching the powder and granular material supply unit between an operating state and a stopped state by cutting into transmissions to the plurality of feeding mechanisms.
A plurality of clutch levers for switching each of the plurality of fractional stripping clutches and for switching the fractional feeding clutches individually, a top end of the seedling platform than the vertical feeding belt on the back side of the seedling platform To support the side,
Each of the plurality of clutch levers is configured to switch and operate the fractional stripe clutch and the fractional feeding clutch corresponding to the fractional stripe clutch,
The clutch lever and the feeding mechanism are located at the same height in the lowering work state of the paddy field working unit,
A plurality of operation cables for interlockingly connecting the plurality of clutch levers to the operation portions of the plurality of fraction feeding clutches;
A plurality of planting operation cables for interlockingly connecting the plurality of clutch levers to the operation parts of the plurality of fractional planting clutches;
The plurality of operation cables are provided across the self-propelled vehicle and the paddy field working unit in a state including a detour portion that detours the link mechanism in the same direction of the vehicle body left lateral outside direction or the vehicle body right lateral outside direction,
In the descending working state of the paddy field working unit, the detour site is horizontal or almost horizontal,
The lateral outer end of the vehicle body at the detour portion is located at the same or substantially the same location as the lateral outer end of the self-propelled vehicle in the lateral direction of the vehicle body,
The portion of the operation cable that spans the bypass portion and the clutch lever is deployed in the lateral direction of the seedling platform on the back side of the seedling platform,
The planting operation cable is arranged in the vertical direction of the seedling stand on the back side of the seedling stand,
A portion of the operation cable that extends between the bypass portion and the clutch lever intersects with the planting operation cable as viewed in the longitudinal direction of the vehicle body.

  The twelfth aspect of the present invention has the same functions and effects as those of the first to tenth aspects of the present invention.

It is a side view which shows the whole paddy field machine. It is a top view which shows the whole paddy field machine. It is a rear view which shows a granular material supply apparatus. It is a vertical side view which shows a granular material supply apparatus. It is a front view which shows a clutch operation structure. It is explanatory drawing which shows the clutch operation structure in a clutch disengaged state. It is explanatory drawing which shows the clutch operation structure in a clutch engagement state. (A) is a top view which shows the fraction stripe delivery clutch in an ON state, (b) is a top view which shows a fraction stripe delivery clutch in a cut-off state. (A) is a front view which shows the clutch lever in an engagement state, (b) is a front view which shows the clutch lever in a disengagement state. It is the schematic which shows the transmission structure for driving a granular material supply apparatus. It is the schematic which shows the transmission structure for driving a paddy field working part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an entire paddy field working machine according to an embodiment of the present invention. FIG. 2 is a plan view showing the entire paddy field working machine according to the embodiment of the present invention. As shown in FIGS. 1 and 2, the paddy field machine according to the embodiment of the present invention is a self-propelled vehicle in which a pair of left and right front wheels 2 and 2 and a pair of left and right rear wheels 3 and 3 are installed in the lower part of a body frame 1. Has a car. The granular material supply apparatus 10 provided with the granular material tank 11 is arranged at the rear part of the self-propelled vehicle. A paddy field working unit 20 provided with six seedling planting mechanisms 27 arranged in the lateral direction of the vehicle body and six granule supply units 22 as six ground working units arranged in the lateral direction of the vehicle body at the rear part of the self-propelled vehicle. It is connected.

  The paddy field machine performs seedling planting work and fertilization work by running the self-propelled vehicle in a state where the paddy field working unit 20 is lowered to the lowered work state. is there.

  The self-propelled vehicle includes an engine 4 disposed in the front part of the vehicle body, and a traveling and working mission 5 that inputs a driving force from the engine 4 to change speed, and the driving force from the engine 4 is transferred from the mission 5 to the front wheels. The four-wheel drive vehicle is configured to travel by driving the front wheel 2 and the rear wheel 3 by transmitting to the rear wheel 2 and the rear wheel 3. The self-propelled vehicle is provided with a driving unit 6 having a driving seat 6a arranged at the rear of the vehicle body, and is configured to ride on the driving unit 6 and operate it. The driving unit 6 is provided with a steering handle 6b that is disposed so as to be rotated in front of the driver seat 6a and that steers the front wheel 2. A working space 7 is provided at the rear part of the self-propelled vehicle body for use in supplying powder to the powder tank 11 and supplying seedlings to the paddy field working unit 20. The working space 7 is provided with a working step 7a located over both sides and the rear side of the driver seat 6a, and a handrail 7b located on both sides of the driver seat 6a.

The paddy field working unit 20 will be described.
As shown in FIG. 1, the paddy field working unit 20 is supported by a link mechanism 8 extended so as to swing up and down from the vehicle body frame 1, and the link mechanism 8 is swung by an elevating cylinder 8a. The lowering operation state where the grounding float 23 descends to the farm scene and comes into contact with the ground and the ascending non-working state where the grounding float 23 rises higher from the farm scene can be operated up and down.

  The paddy field working unit 20 includes a working unit frame 24 whose front end is supported by the link mechanism 8. The working unit frame 24 includes a feed case 25 to which the driving force from the engine 4 is transmitted via the rotating shaft 9 and three planting drive cases 26 arranged at predetermined intervals in the lateral direction of the vehicle body. A seedling planting mechanism 27 is mounted on each side of the rear end of each of the three planting drive cases 26. Above the front part of the working unit frame 24, the seedling stage 28 is provided in an inclined posture that is located rearward toward the lower end side. Three grounding floats 23 arranged at predetermined intervals in the lateral direction of the vehicle body are provided at the lower part of the working unit frame 24. The six granule supply parts 22 as the ground working parts arranged in the lateral direction of the vehicle body in a state of being located one by one near each of the six seedling planting mechanisms 27 are distributed and supported by the three grounding floats 23. It is.

  Each seedling planting mechanism 27 includes two planting arms 27a, which are driven by a driving force transmitted from the feed case 25 to the planting drive case 26, and are planted by the two planting arms 27a. The seedling planting movement that moves back and forth up and down while drawing the turning trajectory that is long in the vertical direction. Accordingly, each seedling planting mechanism 27 alternately takes out the planted seedlings for one stock from the mat-like seedlings on the seedling stage at the lower end of the seedling stage 28 by the two planting arms 27a. The planted seedlings are transported down to the field and planted in the mud portion prepared by the grounding float 23.

  The seedling stage 28 is provided with six seedling placement portions 28a for placing mat-like seedlings to be supplied to the six seedling planting mechanisms 27 side by side in the vehicle body lateral direction. The seedling stage 28 is supported by a support part and a support 24a provided in the working part frame 24 so as to reciprocate in the lateral direction of the vehicle body. The seedling stage 28 is reciprocated in the lateral direction of the vehicle body in conjunction with the seedling movement of the seedling planting mechanism 27 by a lateral feed mechanism provided across the seedling stage 28 and the feed case 25, so that the mat-like seedlings are transferred. It reciprocates in the vehicle body lateral direction with respect to the seedling planting mechanism 27. Thereby, each seedling planting mechanism 27 takes out the planted seedling from the lateral one end side to the other end side of the lower end portion of the mat-like seedling placed on the seedling placing stand 28.

  Each of the six seedling placement portions 28a of the seedling placement stage 28 is equipped with a longitudinal feed belt 28b. The vertical feed belt 28b of each seedling placement portion 28a is provided with a vertical feed drive mechanism 29 (see FIG. 11) provided across the seedling placement base 28 and the feed case 25 when the seedling placement base 28 reaches the left and right stroke ends of the lateral transfer. The mat-like seedling is vertically fed toward the seedling planting mechanism 27 by a length corresponding to the length in the vertical direction of the seedling taken out by the seedling planting mechanism 27.

  Each of the six granular material supply units 22 includes a grooving tool protruding downward from the grounding float 23 and connected to the granular material supply pipe 12 described later. Grooves are formed in the field scene near the side, and the fertilizer supplied by the powder and granular material supply device 10 is supplied to the grooves. The groove after supplying the fertilizer is backfilled by the mud on the side of the groove being pushed by the soil covering member supported by the grounding float 23.

  FIG. 11 is a schematic diagram showing a transmission structure for driving the paddy field working unit 20. As shown in FIG. 11, the driving force input from the rotary shaft 9 to the feed case 25 is transmitted to the planting output shaft 25a by the mission built in the feed case 25, and three planting from the planting output shaft 25a. The driving case 26 is configured to be input to the front end portion. In each planting drive case 26, the driving force input to the planting drive case 26 is transmitted to the pair of seedling planting mechanisms 27, 27 by a transmission mechanism having a fractional strip planting clutch 60. is there.

  Therefore, the fractional planting clutch 60 built in the leftmost planting drive case 26 is a part of the six seedling planting mechanisms 27 by being turned on and off, Two seedling planting mechanisms 27 (hereinafter referred to as a seedling planting mechanism 27L for the left end side two-rows) of a seedling planting mechanism 27 and a seedling planting mechanism 27 adjacent to the seedling planting mechanism 27 at the left end. ) And the seedling planting mechanism 27 for the two left end sides is switched between an action state in which the seedling planting motion is performed and a stopped state in which the seedling planting motion is stopped.

  The fractional row planting clutch 60 built in the rightmost planting drive case 26 is a part of the six seedling planting mechanisms 27 by being turned on and off, and is a seedling planting mechanism at the right end. Two seedling planting mechanisms 27 (hereinafter, referred to as right end side two-row seedling planting mechanism 27R) including an attaching mechanism 27 and a seedling planting mechanism 27 adjacent to the right end seedling planting mechanism 27. The two seedling planting mechanisms 27R for the right end side 2 are switched between an action state in which the seedling planting motion is performed and a stopped state in which the seedling planting motion is stopped.

  The fractional planting clutch 60 built in the central planting drive case 26 is a part of the six seedling planting mechanisms 27 by being turned on and off, and the leftmost two strips. To two seedling planting mechanisms 27 (hereinafter referred to as a center two-row seedling planting mechanism 27N) between the seedling planting mechanism 27L for use and the two seedling planting mechanisms 27R for the right end side 2 threads. Then, the seedling planting mechanism 27N for the central two strips is switched between an action state in which the seedling planting motion is performed and a stopped state in which the seedling planting motion is stopped.

  Accordingly, in the following description, the fractional planting clutch 60 built in the leftmost planting drive case 26 is referred to as a fractional planting clutch 60L for the leftmost two strips, and the fractional planted in the central planting drive case 26 is called a fractional part. The double-planting clutch 60 is referred to as a central two-piece double-planting clutch 60N. The double-planting clutch 60 incorporated in the right-side planting drive case 26 is used as a double-end double-planting clutch 60R. Call it.

  The vertical feed drive mechanism 29 includes a vertical feed output shaft 61 extending laterally outward from the front portion of the feed case 25, and a seedling platform lateral direction supported so as to be rotated on the back side of the seedling platform 28. The longitudinal feed drive shaft 62 is provided. The longitudinal feed output shaft 61 is rotationally driven by the driving force input from the rotary shaft 9 to the feed case 25, and rotationally drives a pair of left and right transmission arms 63 and 63 supported by the longitudinal feed output shaft 61. A passive arm 64 is supported so as to rotate integrally with the longitudinal feed drive shaft 62, and fractional longitudinal feed clutches 70 are provided at three positions of the longitudinal feed drive shaft 62.

  That is, when the seedling stage 28 reaches the left and right lateral feed stroke ends, the passive arm 64 comes into contact with one of the left and right transmission arms 63, 63, and the passive arm 64 is swung by the transmission arm 63. The longitudinal feed drive shaft 62 is driven by a predetermined rotation angle by being operated. When the longitudinal feed drive shaft 62 is driven, the left end vertical feed clutch 70L of the three fraction vertical feed clutches 70 is moved to the left end seedling placement portion 28a of the six seedling placement portions 28a. Both vertical feed belts 28b (hereinafter referred to as the longitudinal feed belts for the left end side two strips) of the vertical feed belt 28b provided and the vertical feed belt 28b provided in the seedling placement portion 28a adjacent to the left end seedling placement portion 28a. The driving force of the longitudinal feed drive shaft 62 is transmitted to the feed belt 28L.

  When the vertical feed drive shaft 62 is driven, the right end vertical feed clutch 70R of the three fraction vertical feed clutches 70 is moved to the right end seedling placement portion 28a of the six seedling placement portions 28a. A vertical feed belt 28b (hereinafter referred to as a vertical feed belt for the right end side two strips) of the vertical feed belt 28b and the vertical feed belt 28b provided in the seedling placement portion 28a adjacent to the right end seedling placement portion 28a. The driving force of the longitudinal feed drive shaft 62 is transmitted to the feed belt 28R. When the longitudinal feed drive shaft 62 is driven, two seedling placement portions on the left end side of the six seedling placement portions 28a are driven by the central fraction longitudinal feed clutch 70N of the three fraction longitudinal feed clutches 70. A vertical feed drive shaft is provided on a vertical feed belt 28b (referred to as a vertical feed belt 28N for two central strips) provided on two seedling placement portions 28a between the right side 28a and the two right end side seedling placement portions 28a. 62 driving force is transmitted.

  Therefore, of the three fraction vertical feed clutches 70, the left end fraction vertical feed clutch 70 is turned on and off, so that the left end two strips corresponding to the left end two seedling planting mechanism 27L are operated. The transmission to the longitudinal feed belt 28L is turned on and off, and the left end side vertical feed belt 28L is switched between an operation state in which the seedling longitudinal feed is performed and a stop state in which the seedling longitudinal feed is stopped.

  Of the three fraction vertical feed clutches 70, the central fraction vertical feed clutch 70 is operated to be turned on and off, so that the center double strip vertical feed belt 28N corresponding to the center double strip seedling planting mechanism 27N is obtained. The vertical feed belt 28N for the central two strips is switched between an operation state in which the seedling vertical feed is performed and a stop state in which the seedling vertical feed is stopped.

  Of the three fraction vertical feed clutches 70, the right end fraction vertical feed clutch 70 is turned on and off, so that the right end two vertical feeds corresponding to the right end two double seedling planting mechanism 27R are operated. The transmission to the belt 28R is turned on and off, and the vertical feed belt 28R for the right end side two strips is switched between an operation state in which the seedling vertical feed is performed and a stop state in which the seedling vertical feed is stopped.

  Therefore, in the following description, the left-end fraction vertical feed clutch 70 of the three fraction vertical feed clutchs 70 will be referred to as a left-end two-piece vertical feed clutch 70L, and the three fraction vertical feed clutch 70 will be described. Of these, the central fraction vertical feed clutch 70 is referred to as a central double fraction vertical feed clutch 70N, and the right end fraction vertical feed clutch 70 of the three fraction vertical feed clutchs 70 is designated as the right end. This is referred to as a two-piece fraction longitudinal feed clutch 70R.

The granular material supply apparatus 10 will be described.
FIG. 3 is a rear view showing the granular material supply apparatus 10. FIG. 4 is a longitudinal side view showing the powder and granular material supply apparatus 10. 1-4, the granular material supply apparatus 10 is arrange | positioned in the site | part behind the driver's seat 6a among self-propelled vehicle bodies. The granular material supply device 10 is supported by the supply device frame 13. The supply device frame 13 is connected to the vehicle body frame 1 via a pair of left and right front columns 13a and 13a and a pair of left and right rear columns 13b and 13b. The supply device frame 13 includes a pair of front and rear vehicle body support frames 13f and 13r that support an upper end portion of a feeding mechanism 14, which will be described later, from the front and rear sides.

  The granular material supply device 10 includes a single granular material tank 11 formed in a shape that is long in the lateral direction of the vehicle body, and four feeding mechanisms 14 that are connected to the lower part of the granular material tank 11 side by side in the lateral direction of the vehicle body. I have. Each feeding mechanism 14 includes one feeding case 14a having an upper end connected to one bottom 11a among four bottoms 11a provided in the powder tank 11 in the lateral direction of the vehicle body. The shape of each of the four bottom portions 11a of the powder tank 11 when viewed in the longitudinal direction of the vehicle body is formed in a funnel shape. The left and right lateral walls 11b of each of the four bottom portions 11a are formed as inclined walls closer to the inside of the bottom portion 11a toward the lower end side.

  Each feeding mechanism 14 includes the feeding case 14 a whose inside communicates with the storage space of the powder tank 11, and also includes a feeding rotating body 14 b provided so as to be rotationally driven inside the feeding case 14 a. The powdered fertilizer stored in the powder tank 11 is fed to the lower part in the feeding case by the feeding rotating body 14b that rotates. More specifically, each feeding rotary body 14b includes a feeding recess formed on the circumferential surface so as to be arranged in the rotation direction, and the feeding interval is set by feeding by a set amount set by the volume of the feeding recess and by the spacing of the feeding recess. Fertilizer is fed by intermittent feeding that is set.

  A wind inlet 14c is formed in the lower part on the front side of each feeding case 14a. The wind inlets 14c of the respective feeding cases 14a are connected to an electric blower 16 through a single air duct 15 located in front of each of the feeding mechanisms 14 facing the vehicle body. As shown in FIG. 1, an intake duct 16 a extends from the intake port of the blower blower 16 to the vicinity of the engine 4. The blower blower 16 sucks the air whose temperature has risen due to heat dissipation of the engine 4 and so generate.

  Two granular material delivery ports 14d and 14d are formed in the lower part of the rear side of each feeding case 14a. In the leftmost feeding mechanism 14L of the four feeding mechanisms 14, the two granular material delivery ports 14d are connected to the leftmost granular material supply unit 22 of the six granular material supply units 22 and the leftmost powder. The powder supply unit 22 adjacent to the particle supply unit 22 is connected to each other by two powder supply pipes 12 and 12.

  In the rightmost feeding mechanism 14 of the four feeding mechanisms 14, the two granular material delivery ports 14 d and 14 d are connected to the rightmost granular material supply unit 22 of the six granular material supply units 22 and the right end. The granular material supply unit 22 adjacent to the granular material supply unit 22 is separately connected by two granular material supply pipes 12 and 12.

  In the feeding mechanism 14 on the left side of the center two feeding mechanisms 14 among the four feeding mechanisms 14, one of the two granular material outlets 14d and 14d formed in the feeding case 14a is used. Among the six granular material supply units 22 of the paddy field working unit 20, the two central granular particles located between the two leftmost particle supply units 22 and the two rightmost particle supply units 22 The powder supply unit 22 is connected to the powder supply unit 22 on the left side of the product supply unit 22 by the powder supply pipe 12. In the feeding mechanism 14 on the right side of the two feeding mechanisms 14 in the center of the four feeding mechanisms 14, one of the two granular material outlets 14d and 14d formed in the feeding case 14a is provided with a granular material outlet 14d. Among the six granular material supply units 22 of the paddy field working unit 20, the two central granular particles located between the two leftmost particle supply units 22 and the two rightmost particle supply units 22 The powder supply pipe 22 is connected to the right powder supply section 22 in the body supply section 22. The two central feeding mechanisms 14 are configured to stop the function of sending the powder from the powder feed outlet 14d to which the powder supply pipe 12 is not connected.

  Accordingly, among the four feeding mechanisms 14, the leftmost feeding mechanism 14 and the rightmost feeding mechanism 14 feed the fertilizer out of the powder tank 11 by the feeding rotary body 14b in one feeding case 14a. It is sent to the two powder supply pipes 12, 12 from the two powder supply outlets 14 d by the conveying air having a temperature higher than the normal temperature from the blower blower 16, and the horizontal end of the six powder supply parts 22. To the granular material supply unit 22 and the granular material supply unit 22 adjacent to the horizontal granular material supply unit 22.

  The left feeding mechanism 14 in the middle two feeding mechanisms 14 of the four feeding mechanisms 14 feeds the fertilizer from the powder tank 11 by the feeding rotating body 14b, and sends the fed powder to the room temperature from the blower blower 16. It is sent to the granular material supply pipe 12 from the granular material outlet 14d by a higher-temperature conveying air, and the left granular material in the two granular material supply units 22 among the six granular material supply units 22 Supply to the supply unit 22. The right feeding mechanism 14 in the middle two feeding mechanisms 14 out of the four feeding mechanisms 14 feeds the fertilizer from the powder tank 11 by the feeding rotating body 14b, and sends the fed powder to the room temperature from the blower blower 16. It is sent to the granular material supply pipe 12 from the granular material outlet 14d by a higher-temperature conveying wind, and the right granular material in the two granular material supply units 22 of the six granular material supply units 22 Supply to the supply unit 22.

  FIG. 10 is a schematic diagram showing a transmission structure for driving the powder and granular material supply device 10. As shown in FIGS. 1 and 10, a vehicle body longitudinal rotation transmission shaft 30 that extends from the mission 5 to the rear of the vehicle body and is rotationally driven by the driving force from the engine 4 is provided below the vehicle body frame 1. The driving force of the lower crank arm 31 provided so as to rotate integrally with the rear end portion of the rotation transmission shaft 30 is transmitted through the interlocking rod 32 facing the vehicle body vertically and the upper crank arm 33 to which the upper end side of the interlocking rod 32 is connected. The upper crank arm 33 is configured to transmit to a vehicle body sideways rotating shaft 34 connected to one end side. The driving force of the rotating shaft 34 is input to the feed amount adjusting mechanism 35, and the output of the feed amount adjusting mechanism 35 is transmitted to the laterally distributed transmission shaft 36. The driving force of the distribution transmission shaft 36 is configured to be transmitted to the feeding rotating body 14b of each of the four feeding mechanisms 14 via the fraction feeding clutch 40 and the gear interlocking mechanism 37.

  As shown in FIGS. 1 and 3, the interlocking rod 32 is arranged so as to pass between a pair of left and right lower links 8 b and 8 b provided in the link mechanism 8 in the vertical direction of the vehicle body. The rotating shaft 34 and the distribution transmission shaft 36 are arranged behind the feeding mechanism 14. The rotation shaft 34 and the distribution transmission shaft 36 are aligned in the front-rear direction with the rotation shaft 34 positioned behind the distribution transmission shaft 36. The rotating shaft 34 and the distribution transmission shaft 36 are supported so as to rotate on a shaft support portion provided in the supply device frame 13.

  The feed amount adjusting mechanism 35 interlocks the swing link and the distribution transmission shaft 36 so that the swing transmission link is reciprocated by the rotation shaft 34 and the distribution transmission shaft 36 is rotated by swinging the swing link. A link-type interlocking mechanism is provided. The feed amount adjustment mechanism 35 adjusts the rotation angle of the distribution transmission shaft 36 in accordance with the swing of the set angle of the swing link by rotating the operation tool 35a, and the per turn unit of the feed rotor 14b. The amount of feed is changed by changing the drive speed.

  As shown in FIGS. 4 and 10, the gear interlocking mechanism 37 provided in each feeding mechanism 14 includes a rotating body driving gear 37a supported so as to rotate integrally with the rotating support shaft 17 of the feeding rotating body 14b, and a rotating body drive. A transmission gear 37b supported so as to rotate relative to the distribution transmission shaft 36 in a state of being engaged with the gear 37a.

  As shown in FIG. 8, the fraction feeding clutch 40 provided in each feeding mechanism 14 includes a clutch body 41 supported by the distribution transmission shaft 36, a clutch body 42 provided across the clutch body 41 and the transmission gear 37b. It is equipped with.

  Since the shape of the mounting hole for the distribution transmission shaft 36 of the clutch body 41 is a hexagon similar to the hexagonal shape of the outer periphery of the distribution transmission shaft 36, the clutch body 41 rotates integrally with the distribution transmission shaft 36. And it slides with respect to the distribution transmission shaft 36. The clutch body 42 is a passive clutch provided on the side of the transmission gear 37b in a state in which the transmission side clutch pawl provided on one end side of the clutch body 41 can be engaged with and released from the transmission side clutch pawl. The clutch body is provided with a clutch pawl on the side, and is a clutch body having a meshing structure.

  Each fraction feed clutch 40 includes an operation portion 44 supported by a support frame 13r on the rear side of the supply device frame 13 via a connecting pin 43, a spring receiver 45 supported by the distribution transmission shaft 36, and a clutch body 41. And an input operation spring 46 mounted on the distribution transmission shaft 36, and the operation portion 44 is operated to swing around the axis of the connecting pin 43, so that the connection state is turned on and off. Switch.

  As shown in FIG. 4, the operation unit 44 is configured such that the side view shape is a U-shape opened rearward, and is fitted from the front to the outside of the rear support frame 13r. An annular operation groove 41 a is formed on the outer periphery of the clutch body 41. The operation portion 44 is provided with an operation pin 44a whose front end enters the operation groove 41a.

  FIG. 8A is a plan view showing the fraction feeding clutch 40 in the engaged state. As shown in FIG. 8A, when the operating portion 44 is swung around the axis of the connecting pin 43 to be in the engaged position, the clutch body 41 is engaged and is slid to the side where the transmission gear 37b is positioned by the operating spring 46. When operated, the clutch pawls on the transmission side and the passive side of the clutch main body 42 are engaged, and the fraction feed clutch 40 is engaged. When the fraction feed clutch 40 is in the engaged state, the clutch body 41 and the transmission gear 37b are connected so as to rotate integrally by the clutch body 42, thereby transmitting the driving force of the distribution transmission shaft 36 to the transmission gear 37b. Thus, the feeding rotary body 14b is driven.

  FIG. 8B is a plan view showing the fraction feeding clutch 40 in the cut state. As shown in FIG. 8 (b), when the operating portion 44 is swung around the axis of the connecting pin 43 to the cut position, the clutch body 41 enters the operating pin 44a against the operating spring 46 and the transmission gear. The clutch pawl is disengaged between the transmission side and the passive side of the clutch body 42, and the fraction feed clutch 40 is turned off. When the fraction feed clutch 40 is in the disengaged state, the clutch body 41 and the transmission gear 37b are disconnected from each other by the clutch body 42, so that the transmission from the distribution transmission shaft 36 to the transmission gear 37b is interrupted. 14b is stopped.

  Therefore, the left end feeding mechanism 14 of the four feeding mechanisms 14 is for the left end side two strips so as to supply the powder body fed from the powder body tank 11 to the two left end side powder body supply parts 22. The feeding mechanism 14 is configured. The two central feeding mechanisms 14 of the four feeding mechanisms 14 are fed to the central two strips so that the powders fed from the powder tank 11 are supplied to the two central powder supply units 22. 14 is constituted. Of the four feeding mechanisms 14, the rightmost feeding mechanism 14 feeds the right and left two strips so that the powder fed from the powder tank 11 is supplied to the two rightmost powder supply parts 22. A mechanism 14 is configured.

  Hereinafter, the leftmost feeding mechanism 14 of the four feeding mechanisms 14 is referred to as a left-end-side two-row feeding mechanism 14L, and two central two feeding mechanisms 14 of the four feeding mechanisms 14 are arranged in the middle two. The feeding mechanism 14N for the right end of the four feeding mechanisms 14 is referred to as a feeding mechanism 14R for the two right end sides.

  Of the four fraction feeding clutch 40, the leftmost fraction feeding clutch 40 is turned on and off to the left end two feeding mechanism 14L corresponding to the left end two seedling planting mechanism 27L. The two left and right powder supply units 22 are switched between an operating state in which fertilizer is supplied to the field and a stopped state in which the supply of powder to the field is stopped. Therefore, the leftmost fraction feeding clutch 40 constitutes the leftmost two-piece feeding clutch 40.

  Of the four fraction feed clutches 40, the center two fraction feed clutch 40 is turned on and turned off so that both are turned on. The transmission to the feeding mechanism 14N for the central two strips corresponding to the mechanism 27N is turned on and off, the operation state of supplying the fertilizer to the field with the two central powder supply parts 22 and the powder supply to the field are stopped. Switch to the stopped state. Therefore, the center two fraction feed clutch 40 constitutes the center two fraction feed clutch 40.

  Of the four fraction feed clutch 40, the right end fraction feed clutch 40 is turned on and off to the right end side two-row feeding mechanism 14R corresponding to the right end side two-row seedling planting mechanism 27R. The two right and left side powder supply units 22 are switched between an operating state in which fertilizer is supplied to the field and a stopped state in which supply of the granular material to the field is stopped. Accordingly, the rightmost fraction feeding clutch 40 constitutes the rightmost two-piece feeding clutch 40.

  Accordingly, in the following description, the leftmost fraction feeding clutch 40 of the four fraction feeding clutch 40 will be referred to as a fraction feeding clutch 40L (corresponding to a fractional clutch) for the left end side two, and the four fraction feeding clutch 40 will be referred to. Of the feeding clutches 40, the fraction feeding clutch constituted by the two central fraction feeding clutches 40 is referred to as a central two-feeding fraction feeding clutch 40N (corresponding to a fraction feeding clutch), and four fraction feeding clutches are provided. 40, the right-end fraction feed clutch 40 is referred to as a right-end two-piece fraction feed clutch 40R (corresponding to a fraction feed clutch).

  Left-end double-row-seed clutch 60L, central 2-row half-plant-type clutch 60N, right-end-side double-row double-planting clutch 60R, left-end side 2-row double-row transplant clutch 70, center 2 Fraction vertical feed clutch 70N for the right end side, double end vertical feed clutch 70R for the right end side two strips, half end feed clutch 40L for the left end side two strips, right end side two strips The fraction feeding clutch 40R for use is configured to be operated by a clutch operating structure including three clutch levers 50 provided in the paddy field working unit 20 as shown in FIG. The clutch operation structure is configured as follows.

  As shown in FIGS. 1 and 5, the three clutch levers 50 are arranged on the back side of the seedling stage 28. The three clutch levers 50 are arranged at the upper end side of the seedling stage with respect to the vertical feed belt 28b in the seedling stage 28. The three clutch levers 50 have the same height as the left end side two-row feeding mechanism 14L, the center two-row feeding mechanism 14R, and the right end-side two-row feeding mechanism 14R in the lowering state of the paddy field working unit 20. It is deployed to be located in. More specifically, a base 50a (see FIG. 9) to which an operation cable 51 (described later) of each of the three clutch levers 50 is connected, a feeding mechanism 14L for two left end sides, a feeding mechanism 14N for two central strips, a right end side The three-clutch lever 50 is provided so that the fraction feeding clutches 40L, 40N, 40R provided in the two-row feeding mechanism 14R are located at substantially the same height when the paddy field working unit 20 is lowered. is there.

  Each of the three clutch levers 50 is supported via a support shaft 53 on the inner surface side of a lever cover 52 attached to the back surface side of the seedling mounting base 28 so as to correspond to each of the three clutch levers 50. The operation part 50b of each clutch lever 50 protrudes from the opening 52a formed in the lever cover 52 to the outside of the cover, and each clutch lever 50 uses the operation part 50b to make the axis of the support shaft 53 the swing axis P. As described above, the swinging operation is performed between the on position [ON] and the off position [OFF].

  As shown in FIGS. 5, 6, and 9, the leftmost clutch lever 50 </ b> L of the three clutch levers 50 has a paddy field working unit 20 with respect to the operation unit 44 of the left-end two-piece fraction feeding clutch 40 </ b> L. And the left operation cable 51L of the three operation cables 51 provided in place of the self-propelled vehicle. The left end clutch lever 50L is located on the back side of the seedling stage 28 with respect to the operation portion 60a of the left end side double-row fraction clutch 60L and the left end side double end vertical feed clutch 70L. Of the three planting operation cables 71 deployed in the above, the left planting operation cable 71L is interlocked and connected.

  The interlocking connection between the left end clutch lever 50L, the left end side two-end strip feeding clutch 40L, the left end two-end strip driving clutch 60L, and the left end-side two-end strip vertical feed clutch 70L Specifically, it is configured as follows.

  One end side of the inner cable 51a of the left operation cable 51L is connected to the base portion 50a of the left end clutch lever 50L, and the other end side of the inner cable 51a is connected to the operation portion 44 of the left end side two-end fraction feeding clutch 40L. It is connected. One end of the inner cable 71a in the left planting operation cable 71L is connected to the base 50a of the leftmost clutch lever 50L. The inner cable 71a in one branch cable portion 71b of the pair of branch cable portions 71b, 71b provided on the other end side of the left planting operation cable 71L is operated on the left-end-side double-row planting clutch 60L. It is connected to the part 60a. The inner cable 71a in the other branch cable part 71b of the pair of branch cable parts 71b and 71b is connected to the operation part 70a of the left end-side two-part vertical feed clutch 70L.

  As shown in FIG. 7, when the leftmost clutch lever 50L is operated to the on position [ON], the inner cable 71a of the left planting operation cable 71L is loosened, and the inner cable is connected to one branch cable portion 71b. 71a switches the operation portion 60a of the double-row-seed clutch 60L for the left-end side double-row to the on-side by a closing operation spring provided in the double-row planting clutch 60L, and the inner cable 71a is connected to the other branch cable portion 71b. The operation portion 70a of the two-piece vertical feed clutch 70L for the two left-end side feeds is switched to the entry side by an entry operation spring provided in the fraction vertical feed clutch 70L. Further, the inner cable 51a of the left operation cable 51L is loosened, and the operation portion 44 of the left-hand two-piece fraction feed clutch 40L is switched to the input side by the input operation spring 46. Accordingly, by operating the left end clutch lever 50L to the on position [ON], the left end side double strip fractional clutch 60L and the left end side double strip vertical feed clutch 70L can be switched to the on state. In addition, it is possible to switch the fraction feeding clutch 40L for the left two strips to the on state.

  As shown in FIG. 6, when the leftmost clutch lever 50L is operated to the disengaged position [OFF], the inner cable 71a of the left planting operation cable 71L is pulled, and the inner cable is connected to one branch cable portion 71b. 71a enters the operation part 60a of the left-end-side double-row-seed clutch 60L and switches it to the cut-off side against the operation spring. In the other branch cable part 71b, the inner cable 71a The operating portion 70a of the fractional longitudinal clutch 70L is entered and switched to the cut side against the operating spring. Further, the inner cable 51a of the operation cable 51L is pulled, and the operation portion 44 of the left-hand two-end fraction feeding clutch 40L is turned on against the operation spring 46 and switched to the cut side. Therefore, by operating the left end clutch lever 50L to the off position [OFF], the left end side double end fractional clutch 60L and the left end side two end fraction vertical feed clutch 70L can be switched to the off state. In addition, it is possible to switch the left-hand two-piece fraction feeding clutch 40L to the disengaged state.

  Of the three clutch levers 50, the central clutch lever 50N is provided in place of the paddy field working unit 20 and the self-propelled vehicle with respect to the operation unit 44 of the two-piece fraction feed clutch 40N. The operation cables 51N are interlocked and connected by an intermediate operation cable 51N. The central clutch lever 50N is arranged on the back side of the seedling stage 28 with respect to the operating portion 60a of the central two-row fraction planting clutch 60N and the operating portion 70a of the central two-piece fraction vertical feed clutch 70N. Of the three planting operation cables 71, the middle planting operation cable 71N is linked and connected. The operation portions 44 of the pair of fraction feeding clutches 40 constituting the central two-piece fraction feeding clutch 40N are interlocked and connected by an interlocking rod 72.

  The specific interlocking structure for connecting the central clutch lever 50N to the central two-segment fraction feeding clutch 40N, the central two-segment fraction-growing clutch 60N, and the central two-segment fraction longitudinal feed clutch 70N is as follows. The left end clutch lever 50L has the same structure as the connection structure.

  As shown in FIG. 7, when the center clutch lever 50N is operated to the on position [ON], the left planting operation cable 71L and the left side when the left end clutch lever 50L is operated to the on position [ON] In the same manner as the operation cable 51L, the middle planting operation cable 71N enters and operates the operation section 60a of the central two-part fraction-groove clutch 60N and the central two-section fraction vertical feed clutch 70N. The switching operation is performed to the entry side by the spring, and the middle operation cable 51N performs the switching operation to the entry side by the entry operation spring 46 at the operation portion 44 of the central two-part fraction feeding clutch 40N. Accordingly, by operating the center clutch lever 50N to the on position [ON], the center double-segment fractional planting clutch 60N and the central two-segment fractional strip vertical feed clutch 70N can be switched to the on state, and The fraction feed clutch 40N for the central two strips can be switched to the on state.

  As shown in FIG. 6, when the center clutch lever 50N is operated to the disengaged position [OFF], the left planting operation cable 71L and the left-hand operation when the left end clutch lever 50L is operated to the disengaged position [OFF]. In the same manner as the operation cable 51L, the middle planting operation cable 71N enters and operates the operation section 60a of the central two-part fraction-groove clutch 60N and the central two-section fraction vertical feed clutch 70N. The middle operation cable 51N enters the operation portion 44 of the central two-piece fraction feed clutch 40N against the operation spring 46 and switches to the entry side against the spring. Accordingly, by operating the central clutch lever 50N to the off position [OFF], the central double-segment fractional-planting clutch 60N and the central two-segmental fraction vertical feed clutch 70N can be switched to the disengaged state, and The fraction feed clutch 40N for the central two strips can be switched to the off state.

  Of the three clutch levers 50, the rightmost clutch lever 50 </ b> R is arranged in place of the paddy field working unit 20 and the self-propelled vehicle with respect to the operation unit 44 of the two-end fraction feeding clutch 40 </ b> R for the right end side. Of the two operation cables 51, the right operation cable 51R is interlocked and connected, and the operation part 60a of the right end side double-row fractional clutch 60R and the right end side double-end fraction vertical feed clutch 70R are operated. It is linked to 70a by a right planting operation cable 71R among the three planting operation cables 71 arranged on the back side of the seedling mount 28.

  Specifically, the right end clutch lever 50R is connected to the right end side two-part strip feeding clutch 40R, the right end side two-part split planting clutch 60R, and the right end side two-end fraction strip vertical feed clutch 70R. The interlocking structure has the same configuration as the connection structure of the leftmost clutch lever 50L.

  As shown in FIG. 7, when the right end clutch lever 50R is operated to the on position [ON], the left planting operation cable 71L and the left side when the left end clutch lever 50L is operated to the on position [ON] Similarly to the operation cable 51L, the right planting operation cable 71R enters the operation section 60a of the right end double-end fractional clutch 60R and the right end side double-end fraction vertical feed clutch 70R. The right operating cable 51R is switched to the ingress side by the operating spring, and the operating portion 44 of the double-end feeding clutch 40R for the right end side 2 is switched to the ingress side by the operating spring 46. That is, by operating the right end clutch lever 50R to the on position [ON], it is possible to switch the right end side double-row double-planting clutch 60R and the right end side double-row double-row vertical clutch 70R to the on state. And, the fraction feeding clutch 40R for the two right end sides can be switched to the on state.

  As shown in FIG. 6, when the right end clutch lever 50R is operated to the disengaged position [OFF], the left planting operation cable 71L and the left object when the left end clutch lever 50L is operated to the disengaged position [OFF]. In the same manner as the operation cable 51L, the right planting operation cable 71R is connected to the operation section 60a of the right-end-side double-row fraction clutch 60R and the right-end-side double-section vertical feed clutch 70R. The right operation cable 51R is switched to the cut side against the input operation spring 46, and the right operation cable 51R is switched to the cut side against the input operation spring 46 against the operation portion 44 of the fraction feeding clutch 40R for the right end side To do. Accordingly, by operating the right end clutch lever 50R to the disengaged position [OFF], the right end side double end strip-type planting clutch 60R and the right end side two-end streak vertical feed clutch 70R can be switched to the off state. And, the fraction feeding clutch 40R for the two right end sides can be switched to the off state.

  Therefore, if the three clutch levers 50 are appropriately operated, it is possible to perform a seedling operation for six-row planting and a fertilization operation for a planted seedling for six-row planting, or a fractional row planting operation for four-row planting and 4 Fertilization work can be performed on planted seedlings that are planted in a row, or fertilization work can be performed on fractional row planting work in two-row planting and planted seedlings that are planted in two-row planting.

  That is, if the three clutch levers 50 are operated to the on position [ON], the left end side double-row double-planting clutch 60L, the middle double-row double-row planting clutch 60N, and the right end-side double-row double-row planting clutch 60L. The clutch 60R can be operated to the engaged state, and the left end side two-row seedling planting mechanism 27R, the middle two-row seedling planting mechanism 27N, and the right end-side seedling planting mechanism 22R are put into an active state. Then, the left end-side two-end vertical feed clutch 70L, the middle two-end half-length vertical feed clutch 70N, and the right-end side two-end vertical stripe clutch 70R can be operated to the on state, and the left end-side two The vertical feed belt 28L, the vertical feed belt 28N for the central two strips, and the vertical feed belt 28R for the two right end sides are driven to feed the seedlings vertically in the six seedling placement portions 28a. Can plant seedlings. Then, the left end side two-end strip feeding clutch 40L, the middle two-end strip feeding clutch 40N and the right end side two-end strip feeding clutch 40R can be operated to the on state, and the left end two strip feeding The mechanism 14L, the feed mechanism 14N for the central two strips, and the feed mechanism 14R for the two right end strips are driven, and the powder supply unit 22 for the two strips on the left end side, the granule feed unit 22 for the two central strips, and The powder supply unit 22 for the right end side 2 ridges is in an active state, and a fertilization operation for supplying fertilizer to each of the 6-planted seedlings can be performed.

  If the left end clutch lever 50L and the center clutch lever 50N are operated to the on position [ON], and the right end clutch lever 50R is operated to the off position [OFF], the left end side double-segmented clutch 60L and the middle The two-row fraction-growing clutch 60N can be operated to the on state, and the left-side-side two-row seedling planting mechanism 27 and the middle-two-row seedling-planting mechanism 27 are in the active state, and the right-end-side two-row seeding mechanism The row planting clutch 60R can be operated to the disengaged state, and the seedling planting mechanism 27 for the right end side 2 strips is stopped.

  Then, the left end-side two-end vertical feed clutch 70L and the middle two-end half-length vertical feed clutch 70N can be turned on, the left end-side two-end vertical feed belt 28L and the center two-end vertical feed clutch 70N. The feed belt 28N is driven, and the seedling longitudinal feed is performed in the seedling placement portion 28a for the left two ends and the seedling placement portion 28a for the two central ends, and the vertical feed belt 28R for the right two ends is stopped. Thus, seedling vertical feeding is not performed in the seedling placement portion 28a for the right end side two ridges, and the four-row planting seedling operation in which the right end side two-row planting is stopped can be performed.

  Then, the left end-side two-end strip feeding clutch 40L and the middle two-row end-number feeding clutch 40N can be turned on, and the left end-side two-end feeding mechanism 14L and the central two-row feeding mechanism 14N are provided. When driven, the powder supply unit 22 for the left two ends and the powder supply unit 22 for the two central ends are activated, and the fraction feeding clutch 40R for the two right ends can be operated in a disconnected state. Then, the feeding mechanism 14R for the right end side 2 strips stops and the powder supply unit 22 for the right end side 2 strips stops, and the left end side 2 strip planting seedlings and the central two strip planting seedlings Fertilizer can be supplied to each fertilizer.

  If the right end clutch lever 50R and the center clutch lever 50N are operated to the on position [ON], and the left end clutch lever 50L is operated to the off position [OFF], the right end side double-row fractional clutch 60R and the middle The two-row fraction-planting clutch 60N can be operated to the on state, and the right-end-side two-row seedling planting mechanism 27 and the middle-two-row seedling-planting mechanism 27 are activated, and the left-end-side two-row seeding mechanism The row planting clutch 60L can be operated to the disengaged state, and the seedling planting mechanism 27 for the left end side 2 strips is stopped.

  Then, the right-end two-end vertical feed clutch 70R and the middle-two-end vertical feed clutch 70N can be turned on, and the right-end-side double-use vertical feed belt 28R and the central two-use vertical feed clutch 70N can be operated. The feed belt 28N is driven to perform seedling longitudinal feed in the right end side two-row seedling placement portion 28a and the central two-row seedling placement portion 28a, and the left end side two-row vertical feed belt 28L is stopped. Thus, seedling vertical feeding is not performed in the seedling placement portion 28a for the left end side two ridges, and the four row planting seedling operation in which the left end side two lanes are stopped can be performed.

  Then, the right end-side two-end strip feeding clutch 40R and the middle two-row end-number feeding clutch 40N can be turned on, and the right end-side two-row feeding mechanism 14R and the central two-row feeding mechanism 14N are provided. When driven, the powder supply unit 22 for the right end side 2 strips and the powder supply unit 22 for the center 2 strips are activated, and the fraction feed clutch 40L for the left end side 2 strips can be operated in a disconnected state. Then, the feeding mechanism 14L for the left end side two-rows stops and the left-end side two-row powder supply unit 22 stops, and the right-end side two-row planting seedlings and the central two-row planting seedlings Fertilizer can be supplied to each fertilizer.

  If the left end clutch lever 50L is operated to the on position [ON] and the center clutch lever 50N and the right end clutch lever 50R are operated to the disengagement position [OFF], the left end side double strip transplant clutch 60L is engaged. The left end side two-row seedling planting mechanism 27 can be operated, and the right end-side two-row seed-planting clutch 60R and the middle-two-row half-row planting clutch 60N can be operated to the disengaged state. The seedling planting mechanism 27 for the right end side 2 strips and the seedling planting mechanism 27 for the middle strip 2 are stopped.

  Then, the left end-side double strip vertical feed clutch 70L can be operated to be turned on, and the left end-side double feed vertical feed belt 28L is driven, so that the left end-side double-row seedling placement portion 28a is fed vertically. Can be operated to turn off the two-piece vertical feed clutch 70R for the right-end side two strips and the double-piece vertical feed clutch 70N for the two middle-end strips. The vertical feed belt 28N is stopped and the seedling vertical feeding is not performed in the seedling placement portion 28a for the right end side two stripes and the seedling placement portion 28a for the central two stripes, and the right end side double row planting and the central two stripes are not performed. Can plant seedlings in double-row planting where planting has stopped.

  Then, the left end-side double strip feed clutch 40L can be operated to the on state, and the left end-side two-row feed mechanism 14L is driven, and the left end-side double-row powder supply unit 22 is in an active state. The right end-side two-end strip feeding clutch 40R and the middle two-row end-number feeding clutch 40N can be operated in a disengaged state, and the right end-side two-row feeding mechanism 14R and the central two-row feeding mechanism 14N are stopped. Then, the granular material supply unit 22 for the right end side two-rows and the granular material supply unit 22 for the central two-rows are stopped, and fertilization work can be performed to supply fertilizer to each planted seedling of the left end side two-row planting. .

  If the right end clutch lever 50R is operated to the on position [ON] and the center clutch lever 50N and the left end clutch lever 50L are operated to the disengaged position [OFF], the right end side double-row clutch 60R is engaged. The right end side two-row seedling planting mechanism 27 can be operated, and the left end-side two-row seed-planting clutch 60L and the middle two-row half-row planting clutch 60N can be operated in a disengaged state. The seedling planting mechanism 27 for the leftmost two strips and the seedling planting mechanism 27 for the middle two strips are stopped.

  Then, the fraction vertical feed clutch 70L for the right end side two strips can be operated to be turned on, and the right end side two strip vertical feed belt 28R is driven so that the seedling vertical feed in the right end side two strip seedling placing portion 28a is driven. Can be operated to turn off the two-piece vertical feed clutch 70L for the left two ends and the two-piece vertical feed clutch 70N for the two middle pieces. The vertical feed belt 28N is stopped, and the seedling vertical feed is not performed in the seedling placement portion 28a for the left end side two stripes and the seedling placement portion 28a for the central two stripes, and the left end side double row planting and the central two stripes are not performed. Can plant seedlings in double-row planting where planting has stopped.

  Then, the right end-side two-row feed clutch 40R can be operated to the on state, the right-end-side two-row feeding mechanism 14R is driven, and the right-end-side two-row powder supply unit 22 is activated. The left-end-side two-end strip feeding clutch 40L and the middle-two-row end-section feeding clutch 40N can be operated in a disengaged state, and the left-end-side two-end feeding mechanism 14L and the central two-row feeding mechanism 14N are stopped. Then, the granular material supply unit 22 for the left end side two-row and the granular material supply unit 22 for the central two-row are stopped, and fertilizer supply work for supplying fertilizer to each planted seedling of the right end side two-row planting can be performed. .

  As shown in FIGS. 1 and 2, the left operation cable 51L, the middle operation cable 51N, and the three operation levers 51L, 50N, and 50R interlockingly connected to the operation portion 44 of the fraction feed clutch 40L, 40N, and 40R. The right operation cable 51R is provided across the self-propelled vehicle and the paddy field working unit 20 with a detour portion 51U that detours the link mechanism 8 in the right lateral outward direction of the vehicle body.

  The three operation cables 51L, 51N, 51R are configured to be supported at midpoints by a cable guide 54 provided on the self-propelled vehicle side and a cable guide 55 provided on the paddy field working unit side. The cable guide 54 on the self-propelled vehicle side extends rearward from the supply device frame 13. The cable guide 55 on the paddy field working unit side is supported by the seedling stand frame 56. The cable guide 55 on the paddy field working unit side is supported on the seedling stage frame 56 by a joint bolt 59 that fastens and connects the support member 58 of the balance spring 57 to the seedling stage frame 56. is there.

  The balance spring 57 is installed across the lateral end portion of the seedling stage 28 and the link mechanism 8, and even if the seedling stage 28 moves laterally outside by lateral transfer, the paddy field working part is used for the load of the seedling stage 28. The seedling stage 28 is pulled and supported so that the left and right weight balance of the 20 is not easily lost.

  The cable guide 54 on the self-propelled vehicle side and the cable guide 55 on the paddy field working unit side include loop portions 54a and 55a formed on the extending end side, and three operation cables 51L, 51N, The operation cables 51L, 51N, and 51R are supported by inserting the 51R.

  The three operation cables 51L, 51N, 51R are supported in a state where the respective detoured portions 51U are horizontal or substantially horizontal when the paddy field working unit 20 is lowered.

  As shown in FIGS. 1 and 2, in the self-propelled vehicle, the laterally outer end of the handrail 7b protrudes most laterally outside the vehicle body and corresponds to the laterally outer end 7T of the self-propelled vehicle. Each of the three operation cables 51L, 51N, 51R is in a state in which the plan view shape of the bypass portion 51U is a circular arc shape protruding in the lateral direction of the vehicle body, and the vehicle body lateral outer end 51T in the bypass portion 51U is in the lateral direction of the vehicle body. The self-propelled vehicle is supported in a state of being located at the same or substantially the same position as the lateral outer end 7T.

  In each bypass portion 51U of each of the three operation cables 51L, 51N, 51R, a paddy field with a support point by the cable guide 54 on the self-propelled vehicle side as a swinging fulcrum as the seedling mounting table 28 is reciprocated in the left-right direction. Although the working part side swings in the left-right direction, the vehicle body lateral outer end 51T in the detour part 51U is located between the cable guide 54 on the self-propelled vehicle side and the cable guide 55 on the paddy field working part side. Thus, the amount of movement of the vehicle body lateral outer side edge 51T in the bypass portion 51U is smaller than the amount of movement on the rear end side of the bypass portion 51U. Therefore, the vehicle body lateral outer end 51T in the detour portion 51U is positioned at the same or substantially the same location as the vehicle lateral lateral end 7T in the vehicle lateral direction regardless of the reciprocating transfer of the seedling stage 28.

  As shown in FIG. 3, in each of the three operation cables 51F, 51N, 51R, the bypass portion 51U and the left end side two-end strip feeding clutch 40L or the central two-end strip feeding clutch 40N or the right end side A portion 51 </ b> A that extends to the operation portion 44 of the two-piece fraction feeding clutch 40 </ b> R is provided along the support frame 13 r on the rear side in the vehicle body side of the supply device frame 13.

  As shown in FIG. 5, in each of the three operation cables 51F, 51N, 51R, a portion 51B extending between the bypass portion 51U and the left end clutch lever 50L or the center clutch lever 50N or the base end 50a of the right end clutch lever 50R, The seedling stage 28 is arranged in the lateral direction on the back side of the seedling stage 28. Each of the three planting operation cables 71L, 71N, 71R is arranged on the back side of the seedling stage 28 in the vertical direction of the seedling stage.

  The pivot axis P of each clutch lever 50L, 50N, 50R, the connection point K1 of the operation cables 51L, 51N, 51R in the clutch levers 50L, 50N, 50R, and the planting operation cable 71L in the clutch levers 50L, 50N, 50R , 71N, 71R with respect to the connecting point K2, the positional relationship as shown in FIG. 9 is set.

  That is, the inner cable 51a located in the portion 51B extending between the bypass portion 51U of the operation cables 51L, 51N, and 51R and the clutch levers 50L, 50N, and 50R, and the inner cable 71a of the planting operation cables 71L, 71N, and 71R, Set to a positional relationship where the clutch levers 50L, 50N, and 50R cross each other when viewed from the vehicle longitudinal direction, and the clutch levers 50L, 50N, and 50R intersect each other when the clutch levers 50L, 50N, and 50R are engaged [ON]. It is.

[Another Example]
(1) In the above-described embodiment, the number of fertilization strips and planting strips that are switched between the operating state and the stopped state by each fraction feeding clutch 40L, 40N, 40R and each fraction stripping clutch 60L, 60N, 60R is two. Although the example set to the strip was shown, it may be implemented by setting the strip to one or three or more.

(2) In the above-described embodiment, an example in which all of the three operation cables 51L, 51N, and 51R are configured to bypass the link mechanism 8 in the right lateral outside direction of the vehicle body has been described, but the three operation cables 51L, All of 51N and 51R may be configured so as to bypass the link mechanism 8 in the left lateral outer side direction of the vehicle body. Further, a part of the three operation cables 51L, 51N, and 51R and the other operation cables bypass the link mechanism 8 in the vehicle body right lateral outer direction and the vehicle body left lateral outer direction. It may be configured and implemented.

(3) In the above-described embodiment, the left end-side two-end strip feeding clutch 40L, the central two-end strip feeding clutch 40N, and the right-end two-end strip feeding clutch 40R are divided into three clutch levers 50L. , 50N, and 50R, an example in which the switching operation is performed separately has been shown. However, the left end-side two-end strip feeding clutch 40L, the central two-end strip feeding clutch 40N, and the right-end two-side strip Each operating portion of the strip feeding clutch 40R includes three operated portions that are interlocked and connected by three operating cables 51L, 51N, and 51R, and a single clutch lever that can be switched to the three operated portions. The left end-side two-end strip feeding clutch 40L, the central two-row end-number feeding clutch 40N and the right-end side two-end strip feeding clutch 40R are combined into one clutch clutch. It may be carried configured to switching operation to each other by chromatography.

(4) In the above-described embodiment, the example in which the bypass portion 51U of the operation cables 51L, 51N, 51R is configured to be horizontal or almost horizontal when the paddy field working unit 20 is lowered is shown. It may be configured and implemented.

  The present invention is a paddy field vehicle in which the operation part 44 of the fraction feed clutch 40 provided in the self-propelled vehicle and the clutch levers 50L, 50N, 50R provided in the paddy field work part 20 are interlocked and connected by operation cables 51L, 51N, 51R. In addition, it can also be used for a paddy field work vehicle in which the operation part 60a of the fraction-row-seed clutch 60 provided in the paddy field work part and the clutch lever provided in the self-propelled vehicle are interlocked and connected by an operation cable. Further, the paddy field working section is provided with a fraction feeding clutch for direct sowing, and can be used for a paddy field working vehicle in which the operation section of the fraction feeding clutch and the clutch lever provided on the self-propelled vehicle are interlocked and connected by an operation cable. .

7T Car body outer side end 8 Link mechanism 11 Powder body tank 14L, 14N, 14R Feeding mechanism 20 Paddy field work part 22 Ground work part (powder body supply part)
27 Seedling planting mechanism 28 Seedling mounting base 28b Vertical feed belts 40L, 40N, 40R Fractional number clutch (fractional number feeding clutch)
44 Operation part 50L, 50N, 50R Clutch lever 51B Portion 51L, 51N, 51R Operation cable 51U Detoured part 51T Car body outer side end 60a Operation part 60L, 60N, 60R Fractional planting clutch 71L, 71N, 71R Planting operation cable

Claims (12)

A self-propelled vehicle and a plurality of ground working units connected to a rear portion of the self-propelled vehicle so as to be able to be moved up and down in a descending work state and a non-lifting working state via a link mechanism and acting on a plurality of work sites in a field A paddy field working section equipped with
A fractional clutch that switches a part of the plurality of ground working units to an active state and a stopped state is provided on one of the self-propelled vehicle and the paddy field working unit,
A clutch lever for switching the fractional clutch is provided on the other side of the self-propelled vehicle and the paddy field working unit,
An operation cable for interlockingly connecting the operation portion of the fractional clutch and the clutch lever;
The operation cable is a paddy field work machine that is provided across the self-propelled vehicle and the paddy field working unit in a state of having a detour portion that detours the link mechanism in a laterally lateral direction of the vehicle body.   The paddy field work machine according to claim 1, wherein the detour portion is horizontal or substantially horizontal in the descending work state of the paddy field working unit.   The paddy field work machine according to claim 1 or 2, wherein a vehicle body lateral outer end at the detour portion is located at the same or substantially the same location as the lateral outer end of the self-propelled vehicle in a lateral direction of the vehicle body. A plurality of the fractional clutches,
As the operation cable, comprising a plurality of operation cables for interlockingly connecting the operation portions of the plurality of fractional clutches to the clutch lever,
The paddy field work machine according to any one of claims 1 to 3, wherein the plurality of operation cables bypass the link mechanism in the same direction of a vehicle body left lateral outside direction or a vehicle body right lateral outside direction.   The paddy field work machine according to claim 4 provided with a plurality of clutch levers to which said a plurality of operation cables were individually connected as said clutch lever. A plurality of seedling planting mechanisms arranged in a lateral direction of the vehicle body in the paddy field working unit, and a seedling mounting table for supplying seedlings to the plurality of seedling planting mechanisms,
As the plurality of ground working units, comprising a plurality of powder supply parts for supplying powder separately to the vicinity of the seedling planting location by the plurality of seedling planting mechanisms,
The self-propelled vehicle is provided with a plurality of feeding mechanisms for feeding powder from a powder tank, and each of the plurality of feeding mechanisms is provided with one of the plurality of powder feeding units. Configured to supply to the granular material supply unit of the part,
As the fraction clutch, a plurality of fractions provided in the self-propelled vehicle are configured so as to act on the plurality of feeding mechanisms separately, and are configured to cut off and transmit power to the feeding mechanism. With a clutch,
The paddy field work machine according to any one of claims 1 to 5, wherein the clutch lever is supported on the back side of the seedling platform. In the seedling stage, a vertical feed belt for vertically feeding seedlings toward the seedling planting mechanism is provided,
The paddy field work machine according to claim 6, wherein the clutch lever is located on an upper end side of the seedling platform with respect to the longitudinal feed belt.   The paddy field machine according to claim 6 or 7, wherein the clutch lever and the feeding mechanism are located at the same height in the descending work state of the paddy field working unit. The paddy field working section is provided with a fractional row planting clutch that turns on and off the transmission to the seedling planting mechanism corresponding to the partial feeding mechanism in which transmission is turned on and off by the fractional feeding clutch,
A planting operation cable for interlockingly connecting the operation portion of the fractional planting clutch and the clutch lever;
The portion of the operation cable that spans the bypass portion and the clutch lever is deployed in the lateral direction of the seedling platform on the back side of the seedling platform,
The said planting operation cable is a paddy field work machine as described in any one of Claims 6-8 arrange | positioned by the back surface side of the said seedling stand in the seedling stand vertical direction.   The paddy field work machine according to claim 9, wherein a portion of the operation cable that extends between the bypass portion and the clutch lever intersects with the planting operation cable as viewed in the longitudinal direction of the vehicle body. A self-propelled vehicle and a plurality of ground working units connected to a rear portion of the self-propelled vehicle so as to be able to be moved up and down in a descending work state and a non-lifting working state via a link mechanism and acting on a plurality of work sites in a field And a paddy field working section equipped with
A plurality of fractional clutches for switching a part of the plurality of ground working units to an active state and a stopped state are provided on one of the self-propelled vehicle and the paddy field working unit,
A plurality of clutch levers for switching the plurality of fractional clutches separately are provided on the other of the self-propelled vehicle and the paddy field working unit,
A plurality of operation cables for interlockingly connecting the operation portions of the plurality of fractional clutches to the plurality of clutch levers;
The plurality of operation cables are provided across the self-propelled vehicle and the paddy field working unit in a state including a detour portion that detours the link mechanism in the same direction of the vehicle body left outside direction or the vehicle body right outside direction,
The detour portion of the plurality of operation cables is horizontal or substantially horizontal in the descending work state of the paddy field working unit,
A paddy field work machine in which a vehicle body lateral outer edge at the bypass portion of the plurality of operation cables is located at the same or substantially the same location as the lateral lateral edge of the self-propelled vehicle in the vehicle lateral direction. A self-propelled vehicle, and a paddy field working unit connected to the rear part of the self-propelled vehicle via a link mechanism so as to be able to be moved up and down in a descending working state and a rising non-working state,
The paddy field working unit includes a plurality of seedling planting mechanisms arranged in a lateral direction of the vehicle body, a seedling platform for feeding seedlings to the plurality of seedling planting mechanisms, and a vicinity of a seedling planting site by the plurality of seedling planting mechanisms. Separately provided with a plurality of powder supply parts for supplying powder,
The seedling stage includes a vertical feed belt that vertically feeds the placed seedling toward the seedling planting mechanism,
A plurality of fractional planting clutches that switch the part of the seedling planting mechanism between the working state and the stopped state by turning on and off the transmission to a part of the seedling planting mechanism of the plurality of seedling planting mechanisms, In preparation for the paddy field working section,
The self-propelled vehicle is configured to feed a granular material from a granular material tank, and supply a plurality of feeding mechanisms to a part of the plurality of granular material supplying units. And a plurality of fraction feeding clutches for switching the powder and granular material supply unit between an operating state and a stopped state by cutting into transmissions to the plurality of feeding mechanisms.
A plurality of clutch levers for switching each of the plurality of fractional stripping clutches and for switching the fractional feeding clutches individually, a top end of the seedling platform than the vertical feeding belt on the back side of the seedling platform To support the side,
Each of the plurality of clutch levers is configured to switch and operate the fractional stripe clutch and the fractional feeding clutch corresponding to the fractional stripe clutch,
The clutch lever and the feeding mechanism are located at the same height in the lowering work state of the paddy field working unit,
A plurality of operation cables for interlockingly connecting the plurality of clutch levers to the operation portions of the plurality of fraction feeding clutches;
A plurality of planting operation cables for interlockingly connecting the plurality of clutch levers to the operation parts of the plurality of fractional planting clutches;
The plurality of operation cables are provided across the self-propelled vehicle and the paddy field working unit in a state including a detour portion that detours the link mechanism in the same direction of the vehicle body left lateral outside direction or the vehicle body right lateral outside direction,
In the descending working state of the paddy field working unit, the detour site is horizontal or almost horizontal,
The lateral outer end of the vehicle body at the detour portion is located at the same or substantially the same location as the lateral outer end of the self-propelled vehicle in the lateral direction of the vehicle body,
The portion of the operation cable that spans the bypass portion and the clutch lever is deployed in the lateral direction of the seedling platform on the back side of the seedling platform,
The planting operation cable is arranged in the vertical direction of the seedling stand on the back side of the seedling stand,
A paddy field work machine in which a portion of the operation cable that extends between the bypass portion and the clutch lever intersects with the planting operation cable as viewed in the longitudinal direction of the vehicle body.

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