JP5457141B2 - Fertilizer application and riding rice transplanter on which it is mounted - Google Patents

Description

  The present invention relates to a mid-mount fertilizer and a riding rice transplanter in which the fertilizer is mounted as a unit.

  Conventionally, as a form of riding rice transplanter, there is one in which a planting device is connected to the rear of a traveling device and a fertilizer is mounted behind a seat provided in the traveling device. In such a riding rice transplanter, seedling planting work by a planting device and fertilizer application work by a fertilizer can be performed simultaneously.

  And the fertilizer applicator is attaching the several drawing | feeding-out part along the extension direction to the support frame part extended in the left-right width direction. A plurality of hopper portions are connected to each feeding portion. The fertilizer accommodated in each hopper part is let out through each feeding part.

  Further, a feeding operation shaft extending in the left-right direction is inserted through each feeding part in a penetrating state so that each feeding part is fed out. Here, the feeding operation shaft is interlocked with a power take-off shaft provided in the traveling device.

  In addition, each feeding portion is provided with a discharge port portion for discharging residual fertilizer. A shutter is attached to each discharge port portion so as to be freely opened and closed, and a discharge hose is connected to each discharge port portion. In this way, when discharging the residual fertilizer, the shutter closing the discharge port is opened, so that the residual fertilizer is discharged into the collection container through each discharge hose. Here, the discharge hose is formed in a bellows shape in order to ensure good flexibility and stretchability. The discharge hose is extended during use to drop the residual fertilizer by its own weight in the discharge hose, and when not in use, the discharge hose is bent in a loop shape and stored between the feeding portion and the seat.

Japanese Patent Laid-Open No. 2003-61420

  However, in the above fertilizer, when discharging the residual fertilizer, it is necessary to extend the discharge hose connected to each feeding portion as far as possible downward so that the residual fertilizer smoothly falls by its own weight in the discharge hose. However, the arrangement | positioning operation | work of this discharge hose is complicated.

  That is, if the collection container is arranged in the space between the traveling device and the planting device, the residual fertilizer can be discharged by extending the discharge hose toward the collection container. However, since the left and right rear wheels are located on the left and right sides of the space between the traveling device and the planting device, the operation of arranging the collection container in the space is complicated.

  Further, when the collection container is disposed outside the left and right rear wheels, it is necessary to extend the discharge hose above the left and right rear wheels or between the rims of the left and right rear wheels. However, since mud adheres to the left and right rear wheels, there is a problem such as removing mud from the route around the discharge hose.

In the invention of claim 1, a fertilizer applying a plurality of feeding parts along the extending direction to the support frame part extending in one direction, and each feeding part is a fertilizer applying a continuous hopper part, Each of the feeding parts is formed so as to be separable and joinable to the lower side feeding body and the upper side feeding body, and the fixed feeding portion is formed by attaching the lower feeding body to the support frame portion. The upper side feeding body is connected to the hopper part to form one movable side fertilizer and the other side movable fertilizer, and the fertilizer remaining inside is discharged to the outer end of both movable side fertilizers. The one side movable side fertilizer and the other side movable fertilizer are pivotally supported via a pivot shaft extending in the front-rear direction to the side end of the support frame, respectively. Connected and extended horizontally horizontally The posture can be freely changed to a force and a discharge posture in which the discharge portion is directed downward by directing the discharge portion downward, and the one-side movable side fertilization portion and the other-side movable side fertilization portion are respectively extended to the upper side. The one-side feeding operation shaft for feeding the body and the other-side feeding operation shaft are coaxially arranged, and the opposite inner ends of the both-side feeding operation shafts are connected to each other so that they can be connected and disconnected. The fertilizer section is provided with an input-side connection section that is linked to the one-side feeding operation shaft, and the input-side connection section is connected to the output-side connection section provided in the support frame section in the feeding posture of the one-side movable fertilizer section. On the other hand, in order for the input side connecting portion to be disconnected from the output side connecting portion in the discharging posture of the one side movable side fertilizing portion , the input side connecting portion is protruded from the one side movable side fertilizing portion. The input gear can be rotated freely through the input side connecting shaft. On the other hand, the output side connecting portion is formed by supporting an output gear via an output side connecting shaft protruding from the output portion provided in the support frame portion, and the one side movable side fertilizing portion is formed. The input gear meshes with the output gear from above in the extended posture, and the input gear is separated upward from the output gear in the discharge posture of the one side movable fertilizer, and the mesh is released. The input-side connecting shaft and the output-side connecting shaft are arranged in parallel with their axis lines directed in the front-rear direction .

In the invention of claim 2, which is equipped with a fertilizer apparatus of claim 1 Symbol placement on riding rice transplanter.

(1) In the present invention described in claim 1, a fertilizer applying a plurality of feeding parts along a direction of extension to a support frame part extending in one direction, and a hopper part communicating with each feeding part. And each said feeding part is formed in a lower side feeding body and an upper side feeding body so that isolation | separation and joining are possible, and the said lower side feeding body is attached to the said support frame part, and a fixed side fertilization part is formed. On the other hand, the upper side feeding body is connected in communication with each hopper to form one movable movable fertilizer and the other movable fertilizer, and the outer ends of both movable fertilizers remain inside. A discharge portion for discharging the fertilizer to be discharged, and the one side movable fertilizer and the other side movable fertilizer are respectively connected to a side end portion of the support frame portion via a rotating support shaft extending in the front-rear direction. pivotally-linked to Te were substantially horizontally is lying It is possible to change the posture between a protruding posture and a discharging posture in which the discharging portion is directed substantially vertically and directed downward, and each of the one side movable side fertilizing portion and the other side movable side fertilizing portion has an upper portion. The one-side feeding operation shaft for feeding-out the side feeding body and the other-side feeding operation shaft are arranged coaxially, and the opposite inner ends of the both-side feeding operation shafts are connected to each other so that they can be connected and disconnected. The movable side fertilizer is provided with an input side connection that is linked to the one-side feed operating shaft, and the input side connection is connected to the output side connection that is provided on the support frame when the one-side movable fertilizer is fed. On the other hand, the input-side connecting portion protrudes from the one-side movable-side fertilizer so that the input-side connecting portion is disconnected from the output-side connecting portion in the discharging posture of the one-side movable-side fertilizer. Roll the input gear through the input side connecting shaft On the other hand, the output side connecting portion is formed by supporting the output gear via an output side connecting shaft protruding from the output portion provided on the support frame portion, and is movable on one side. The input gear meshes with the output gear from above in the extended posture of the side fertilizer, and the input gear is separated from the output gear upward in the discharge posture of the one side movable fertilizer to release the mesh. The support shaft, the input-side connection shaft, and the output-side connection shaft are arranged in parallel so that the axes are directed in the front-rear direction .

  Thus, the one side movable side fertilizer and the other side movable fertilizer can be changed in posture between the feeding posture arranged substantially horizontally and the discharging posture raised almost vertically, respectively. Since the outer end is provided with a discharge part for discharging the fertilizer remaining in the interior, each of the movable side fertilizing parts is changed to a discharge posture so that each discharge part is directed downward. Can do. Therefore, the residual fertilizer can flow down to each discharge part by its own weight, and can be easily and firmly discharged from each discharge part.

  And, while the input side connecting portion is connected to the output side connecting portion provided in the support frame portion in the feeding posture of the one side movable side fertilizing portion, the input side connecting portion is connected in the discharging posture of the one side movable side fertilizing portion. Since it is made to cut | disconnect from the output side connection part, when changing the attitude | position of the one side movable side fertilization part, it is not necessary to perform connection / disconnection operation of an input side connection part and an output side connection part one by one. This eliminates the problem that the operator forgets to perform the connection / disconnection operation between the input side connection portion and the output side connection portion, thereby improving operability.

  Moreover, since this fertilizer is mounted horizontally long in the left-right direction behind the seat provided in the traveling device of the riding rice transplanter, each discharge portion can be disposed at the left and right ends of the fertilizer. The operator can easily perform the discharging operation through each discharging portion by getting on the traveling device and setting the both fertilizers to the discharging posture in which both movable-side fertilizers are splashed substantially straight. At this time, if a collection container is arranged at a position directly below each discharge portion directed downward at the left and right outer positions of the traveling device, the remaining fertilizer discharged in the flowing state can be easily collected in the collection container. Can do. Further, since the discharge operation can be performed without connecting the discharge hose to the feeding portion, there is no need to worry about the complicated handling of the discharge hose connected to each feeding portion as in the prior art.

Further , the input gear meshes with the output gear from above in the extended posture of the one-side movable fertilizer, and the input gear is separated upward from the output gear and released from meshing in the discharge posture of the one-side movable fertilizer. As a result, the posture change operation of the one-side movable fertilizer can be performed easily, and the input gear and output gear can be firmly engaged and released accordingly, and the connection can be connected / disconnected. it can.

(2) In the second aspect of the invention, which is equipped with a fertilizer apparatus of claim 1 Symbol placement on riding rice transplanter.

  In this way, seedling planting work and fertilization work can be carried out simultaneously, and work efficiency can be improved.

The left view of a riding rice transplanter. The top view of a riding rice transplanter. The perspective explanatory drawing from the upper right rear of the main body frame. The perspective explanatory drawing from the right rear lower part of the main body frame. Back surface explanatory drawing of the fertilization hose part arrange | positioned at the planting apparatus. The front view of a fertilizer applicator. The rear view of a fertilizer applicator. Front explanatory drawing of the fertilizer application of a discharge posture. Explanatory drawing of the back of the fertilizer application of a discharge posture. Plane explanatory drawing of the fertilizer application of a discharge posture. A partially cutaway plan view of a fertilizer application apparatus. Plane explanatory drawing which removed the hopper part of the fertilizer application equipment. The posture change explanatory view of the right movable side fertilizer. Explanatory drawing of the left side of a fertilizer application apparatus. Left side perspective explanatory drawing of a fertilizer applicator. Plane | planar explanatory drawing of the interference avoidance attitude | position of a pressure ventilation supply part. Plane explanatory drawing of the connection attitude | position of a pressure ventilation supply part. The center part right side cross-sectional explanatory drawing of a fertilizer application apparatus. The middle section right side section explanatory drawing of a fertilizer application equipment. The back cross-sectional explanatory drawing of a discharge part. FIG. Side surface sectional drawing of a gasket. The side view of a midway fertilization hose body. The II sectional view taken on the line of FIG. Explanatory drawing of the drawing | feeding-out attitude | position of a left movable side fertilization part. Explanatory drawing of the open attitude | position of an outer side opening / closing lid body, and the interference avoidance attitude | position of a pressure ventilation supply part. Explanatory drawing of the use condition of a discharge guide body. Explanatory drawing of the discharge | emission attitude | position of a left movable side fertilization part. Explanatory drawing of residual fertilizer discharge of the left movable side fertilizer.

  A shown in FIGS. 1 and 2 is a riding rice transplanter equipped with a fertilizer application apparatus M according to the present invention. Below, after explaining riding rice transplanter A, it explains in full detail about fertilizer application M concerning the present invention.

[Rideway rice transplanter A]
As shown in FIGS. 1 and 2, the riding rice transplanter A has a planting device 3 attached to a rear side of a traveling device 1 as a towing vehicle via a lifting mechanism 2 so as to be lifted and lowered. The riding rice transplanter A can perform a plurality of (six in this embodiment) planting operations.

[Running device 1]
As shown in FIGS. 1 and 2, the traveling device 1 is configured by mounting an upper body 12 on a lower body 11. As shown in FIGS. 3 and 4, the lower body 11 has a prime mover section 14 including an engine 15 and the like mounted on a main body frame 13. The main body frame 13 has front axle cases 17 and 17 extending outward from the left and right side front portions of the transmission case 16, and front axles 18 and 18 are attached to outer end portions of the front axle cases 17 and 17. A pair of left and right front wheels 19, 19 are attached to the rear axle case 20, and a pair of left and right rear wheels 22, 22 are attached to the left and right outer ends of the rear axle case 20 via the rear axles 21, 21. A connecting frame 23 extending in the front-rear direction is formed between the center portion of the rear axle case 20 in a horizontal manner. Here, the connecting frame 23 has a square shape in cross section and a pipe shape extending straight in the front-rear direction.

  As shown in FIG. 4, left and right front engine mounts 24, 24 project from the middle of the connecting frame 23 toward the upper outer side, while the rear axle case 20 has the left and right sides facing forward. Rear engine mounts 25, 25 are provided so as to project the engine 15 on the engine mounts 24, 24, 25, 25.

  As shown in FIG. 1, between an output shaft 26 projecting outward from the left front portion of the engine 15 and an input shaft 27 projecting outward from the left rear portion of the transmission case 16, pulleys 28, A power transmission belt 30 is wound through 29.

  As shown in FIG. 4, a transmission shaft 31 extending in the front-rear direction is interposed between the rear portion of the transmission case 16 and the right front portion of the rear axle case 20. A PTO shaft 32 protrudes rearward from the left rear portion of the rear axle case 20.

  As shown in FIGS. 3 and 4, a power take-out case 33 is provided on the right front portion of the rear axle case 20 so as to protrude to the right side of the engine 15, and the power take-out case 33 and the right rear portion of the transmission case 16 are connected to each other. A power take-out shaft 35 extending in the front-rear direction is interposed therebetween. A first power take-off shaft 36 protrudes upward from the rear portion of the upper surface of the power take-out case 33, and a second power take-off shaft 34 protrudes rearward from the rear portion of the power take-out case 33.

  In this way, power is transmitted to the engine 15 → the output shaft 26 → the pulley 28 → the transmission belt 30 → the pulley 29 → the input shaft 27 → the transmission case 16. The transmission power is transmitted to the transmission case 16 → the front axle cases 17 and 17 → the front axles 18 and 18 → the pair of left and right front wheels 19 and 19, and the transmission case 16 → the transmission shaft 31 → the rear axle case 20 → the rear axle 21 21 → Power is transmitted to the left and right rear wheels 21, 21. Further, power is transmitted to the PTO shaft 32 of the rear axle case 20. Further, power is transmitted from the transmission case 16 to the power take-off shaft 35 to the first power take-out shaft 36 and the second power take-out shaft 34. Here, power is transmitted from the PTO shaft 32 to the leveling device 4 provided in the planting device 3 described later. And motive power is transmitted to the fertilizer M mentioned later from the 1st power extraction shaft 36. FIG. Further, power is transmitted from the second power take-out shaft 34 to the planting device 3 described later.

  On the main body frame 13, as shown in FIGS. 3 and 4, a sub-body frame 37 having a rectangular frame shape in plan view is mounted so as to protrude forward and to the left and right sides of the main body frame 13. ing. The sub vehicle body frame 37 includes a front half forming frame portion 38 that projects from the front axle cases 17 and 17 forward and a rear end edge portion of the front half forming frame portion 38 to a position above the rear axle case 20. And a rear half forming frame portion 39 arranged with a certain step. Here, the rear end portion of the rear half forming frame portion 39 is formed in the left-right direction between a pair of left and right rear end support columns 40, 40 formed by raising from the rear axle case 20 and the upper end portions of both rear end support columns 40, 40. The rear end portion forming piece 41 formed by extending in the horizontal direction is formed so as to extend laterally on both the left and right sides.

  Further, as shown in FIGS. 3 and 4, a pair of left and right fertilizer applicator mounting seats 48, 48 extending in the front-rear direction are provided at a constant interval in the left-right direction at the rear part of the rear half forming frame portion 39 of the sub body frame 37. Open and provided.

  In this way, a fertilizer applying device M, which will be described later, is detachably attached to the pair of left and right fertilizer applicator mounting seats 48, and the fertilizer applying device M is firmly supported by the latter-half forming frame portion 39 of the sub vehicle body frame 37. .

  As shown in FIGS. 3 and 4, the upper body 12 has a vehicle body cover body 42 stretched over the sub vehicle body frame 37 in a covering manner. The vehicle body cover body 42 includes a front half formation portion 43 disposed along the front half formation frame portion 38 of the sub vehicle body frame 37 and a rear half formation portion 44 disposed along the rear half formation frame portion 39 of the sub vehicle body frame 37. And formed from. A handle column 45 is erected on the front portion of the front half forming portion 43, and a handle 46 is attached to the upper end surface portion of the handle column 45. A seat 47 is placed on the rear half forming portion 44 located behind the handle 46. Here, a constant width of the rear portion of the sub vehicle body frame 37 (in this embodiment, the front-rear width of the fertilizer application device M) is exposed without being covered by the rear half forming portion 44 of the vehicle body cover body 42. And the fertilizer M is supported by the exposed latter half formation frame part 39. FIG.

[Planting device 3]
As shown in FIGS. 1, 2, and 5, the planting device 3 extends a planting center case 51 from the planting mission case 50 toward the rear. And the front part of the planting side cases 53, 53 extending in the front-rear direction is connected to the left and right side parts of the planting mission case 50 via cylindrical connection cases 52, 52 extending in the left-right direction, respectively. ing. The planting center case 51 and the planting side cases 53, 53 are arranged in parallel with a certain interval in the left-right direction, and the front part of the planting center case 51 and the front part of each planting side case 53, 53 These cases 51, 53, 53 are interlocked and connected via an interlocking shaft 54, 54. Planting claws (not shown) are attached to left and right rear portions of the cases 51, 53, 53 via a pair of left and right rotary cases (not shown). On these cases 51, 53, 53, through a seedling stage support frame 57, a seedling stage 58 is supported so as to be slidable back and forth in the left-right direction in a front and rear inclined posture. A lateral feed mechanism 59 for reciprocating and laterally sliding (transverse feed) the seedling stage 58 is disposed on the front side (lower side) of the seedling stage 58, and the seedling stage 58 is attached to the lateral feed mechanism 59. Linked together. Six seedling mats can be placed on the seedling stage 58. The planting mission case 50 has an input shaft 55 projecting forward. The input shaft 55 is detachably linked to the second power take-off shaft 34 of the power take-out case 33 provided in the traveling device 1 via a planting transmission shaft 60. The planting mission case 50 is erected by raising the connecting frame 56 upward. A center float 61 is disposed below the planting center case 51, and side floats 62 and 62 are disposed below the respective planting side cases 53 and 53.

  The elevating mechanism 2 is interposed between the connecting frame 56 and the rear end forming piece 41 and the pair of left and right rear end supporting columns 40, 40 that form the rear end of the latter half forming frame 39. Yes. The lifting mechanism 2 includes a lifting link 63, a lifting cylinder (not shown), and a rolling cylinder (not shown). In this manner, the planting device 3 is connected to the rear of the traveling device 1 by the lifting mechanism 2 so as to be capable of rolling and lifting up and down around the longitudinal axis.

  In the riding rice transplanter A configured as described above, it is possible to perform seedling planting work for six strips while traveling in the field.

[Fertilizer M]
As shown in FIGS. 1 and 2, the fertilizer M is detachably mounted on the rear portion of the travel device 1 via the pair of left and right fertilizer mounting seats 48 and 48 (see FIGS. 3 and 4). Has been established.

  As shown in FIGS. 6 to 7, the fertilizer application device M includes a plurality (six in this embodiment) of support frames 70 extending in one direction (left and right in this embodiment) along the extension direction. A plurality of (six in this embodiment) hopper portions 73 are connected to the upper end opening of each of the feeding portions 72, while a plurality ( In this embodiment, six fertilization hose portions 74 (see FIG. 1) are connected in communication.

  Here, as shown in FIGS. 8 to 10, each feeding portion 72 includes a lower-side feeding body 75 attached to the support frame portion 70 and an upper-side feeding body provided in communication with each hopper portion 73 described later. 76 can be separated and joined.

  The support frame portion 70, the lower-side feeding body 75, and the fertilization hose portion 74 form a fixed-side fertilization portion 77. In addition, a plurality (three in this embodiment) of hopper portions 73 arranged on one side (left side in this embodiment) are integrally connected in the adjacent direction, and each upper portion is provided at the lower end portion of each hopper portion 73. The side feeding body 76 is continuously connected to form a left movable side fertilizing portion 78 as a one side movable side fertilizing portion. On the other hand, a plurality (three in this embodiment) of hopper portions 73 arranged on the other side (right side in this embodiment) are integrally connected in the adjacent direction, and each upper portion is provided at the lower end portion of each hopper portion 73. The laterally extending body 76 is connected in a continuous manner to form a right movable side fertilizer 79 as the other movable side fertilizer. Moreover, discharge | emission parts 80 and 80 for discharging | emitting the fertilizer which remains inside are each provided in the outer side edge part of both the movable side fertilization parts 78 and 79.

  The left movable side fertilizing portion 78 and the right movable side fertilizing portion 79 are pivoted and connected to the left and right end portions of the support frame portion 70 via rotation support arm bodies 81, 81, respectively, and are laid horizontally. Posture change (a) (refer to FIG. 6 and FIG. 7) and discharge posture (b) (refer to FIG. 8 to FIG. 10) in which the discharge portions 80 and 80 are directed downward by jumping up substantially vertically. It is free.

  In this way, the left movable side fertilizer 78 and the right movable fertilizer 79 can be changed in posture between a feeding posture (a) arranged substantially horizontally and a discharging posture (b) flipped up substantially vertically, Since the discharge | emission parts 80 and 80 for discharging | emitting the fertilizer which remain | survives inside are provided in the outer side edge part of both the movable side fertilization parts 78 and 79, both the movable side fertilization parts 78 and 79 are discharged | emitted, respectively By changing the posture to b), it is possible to direct the discharge units 80 and 80 downward. Therefore, residual fertilizer can flow down to each discharge part side by its own weight, and can be easily and firmly discharged from each discharge part 80,80. At this time, if the collection container K (see FIG. 27) is arranged at a position directly below the discharge portions 80 and 80 directed downward at the left and right outer positions of the traveling device 1, the flowing state is brought into the collection container K. The residual fertilizer H (see FIG. 29) discharged to the can be easily recovered. Further, since the discharge work can be performed without connecting the discharge hose to the feeding portion, there is no need to worry about complicated handling of the discharge hose connected to each feeding portion 72 as in the prior art.

  As shown in FIG. 7, the left movable side fertilizer 78 and the right movable side fertilizer 79 include a left side feed operating shaft 82 as the one side feed operating shaft that feeds the upper side feed body 76 and the other side, respectively. A right feeding operation shaft 83 is provided as a feeding operation shaft. In addition, the left-hand feeding operation shaft 82 and the right-hand feeding operation shaft 83 extend through the upper part of each upper-side feeding body 76 and extend in the left-right direction and are arranged coaxially. The opposite inner ends of the both-side feed operation shafts 82 and 83 are connected via clutch portions 84 and 84 so as to be freely connected and disconnected. Here, as shown in FIG. 12, the clutch portions 84 and 84 are cylindrical slide bodies 85 and 85 that are externally fitted to the inner end portions of the feed operation shafts 82 and 83 so as to be slidable in the axial direction. And meshing bodies 86, 86 formed in a dog clutch shape in an opposed state to the inner ends of the sliding bodies 85, 85. The sliding bodies 85 and 85 are elastically biased by the springs 87 and 87 in the facing direction (connecting direction).

  As shown in FIGS. 11 and 12, the right side movable fertilizer 79 is provided with an input side connecting portion 88 on the left side of the right feeding operation shaft 83, and the input side connecting portion 88 and the right feeding operation shaft 83. Are linked together. On the other hand, the support frame portion 70 is provided with an output side connection portion 89.

  As shown in FIG. 6, the input side connection portion 88 includes a gear case 90 that is coaxially and integrally attached to the left side portion of the right extension operating shaft 83, and an input side connection shaft 91 that protrudes forward from the gear case 90. And a large-diameter input gear 92 attached to the front end portion of the input-side connecting shaft 91.

  As shown in FIGS. 6 and 8 to 12, the output side connecting portion 89 includes a transmission case 95 attached to a middle portion on the right side of the lower frame forming body 93 on the front side via a bracket 94, and the transmission case 95. The output side connecting shaft 96 protrudes rearward, and a small-diameter output gear 97 attached to the rear end portion of the output side connecting shaft 96 is formed. The transmission case 95 incorporates a friction drive mechanism.

  Then, as shown in FIG. 13, the input gear 92 is engaged with and connected to the output gear 97 from above in the feeding posture (a) of the right movable fertilizer 79 arranged substantially horizontally. On the other hand, when the input gear 92 is separated from the output gear 97 in the discharge posture (b) of the right side movable fertilizer 79 that is lifted substantially vertically, the transmission of power is cut off. I have to. The input gear 92 and the output gear 97 are molded from a synthetic resin in order to secure a good flexible meshing property. Reference numeral 98 denotes a small-diameter gear for changing gears, which is detachably attached to the upper frame forming body 99. Reference numeral 100 denotes a large-diameter gear for speed change exchange that is detachably attached to the lower frame forming body 93.

  In this way, the right movable side fertilizer 79 is changed from the feeding posture (a) in which the input gear 92 of the input side connecting portion 88 and the output gear 97 of the output side connecting portion 89 are connected to each other to the discharging posture (b). By simply changing the attitude, the input gear 92 is separated from the output gear 97 and the meshing state is released. Therefore, there is no need to perform connection / disconnection operations between the input side connection portion 88 and the output side connection portion 89 one by one. This eliminates the problem that the operator forgets to connect / disconnect the input side connection portion 88 and the output side connection portion 89, thereby improving operability. At this time, the left-hand feeding operation shaft 82 and the right-hand feeding operation shaft 83 are disconnected from each other in advance through the clutch portions 84 and 84 so as to be in a disconnected state.

  As shown in FIGS. 6 to 9, the input shaft 102 that protrudes downward from the bottom of the speed change case 95, and the first power extraction shaft 36 that protrudes upward from the rear portion of the upper surface of the power extraction case 33 described above. Between them, a transmission vertical shaft 101 extending in the vertical direction is detachably provided. The input shaft 102 of the transmission case 95 is disposed substantially vertically above the first power take-off shaft 36 of the power take-out case 33, and the transmission vertical shaft 101 is interposed in a substantially vertical direction. . Therefore, the transmission longitudinal shaft 101 can be made compact and the transmission efficiency can be improved.

  As described above, the fertilizer application device M according to the present invention includes the fixed-side fertilizer portion 77 that is fixed on the pair of left and right fertilizer applicator mounting seats 48, 48 provided at the rear portion of the traveling device 1, and the fixed-side fertilizer portion 77. The left movable side fertilizer 78 and the right movable fertilizer 79 are attached so as to be freely changeable in posture. The fertilizer application M is detachably attached to the traveling device 1 as a unit. At this time, by attaching and detaching the lower end portion of the transmission vertical shaft 101 to the first power extraction shaft 36 of the power extraction case 33, the fertilizer application M connects the transmission case 95 and the transmission vertical shaft 101 provided on the fixed-side fertilizer 77. It can be attached to and detached from the traveling device 1 as a unit. Therefore, the attaching / detaching workability of attaching / detaching the fertilizer M to the traveling device 1 as a unit including the transmission case 95 and the transmission vertical shaft 101 can be improved.

  Below, the above-mentioned support frame part 70, the hopper part 73, the delivery part 72, and the fertilization hose part 74 are demonstrated concretely.

[Support Frame 70]
As shown in FIGS. 6 to 10, the support frame portion 70 forms the base portion of the fixed fertilizer 77 described above. That is, a pair of front and rear lower frame forming bodies 93 and 93 extending in a straight line in the left and right direction are horizontally mounted on a pair of left and right mounting bodies 110 and 110 formed in a longitudinal shape in the front and rear direction. , 93 is attached to the lower side surface of the pair of left and right plate-like frame forming bodies 111, 111 in an erected shape, and is formed in a standing shape. An upper frame forming body 99 that extends in a shape is horizontally formed to form a three-dimensional frame. Then, as shown in FIG. 12, a pair of left and right plate-like reinforcing bodies 112 and 112 are erected on the left and right sides of the upper and lower frame forming bodies 93, 93, and 98. Here, the upper frame forming body 99 is formed in a rod shape (a tubular shape having a circular cross section). Further, the lower frame forming bodies 93 and 93 are formed in a tubular shape having a square cross section. The plate-like reinforcing body 112 is formed with a concave portion 113 that is concavely curved backward at the front end edge portion, and the three reinforcing members 112 are arranged in a state of avoiding interference with a pressure blower duct 114 described later via the concave portion 113. Each frame forming body 93, 93, 98 is installed.

  As shown in FIGS. 10 to 15, between the lower frame forming bodies 93, 93, a circular pressure air duct 114 that extends straight in the left-right direction is connected to the pair of left and right plate-shaped frame forming bodies 111, 111 are installed horizontally. Here, as shown in FIGS. 14 and 15, the left end of the pressure blower duct 114 penetrates the left plate-shaped frame forming body 111 and is attached to the outer surface of the left plate-shaped frame forming body 111. The open end 124 of the body 129 communicates with the open end 124. On the other hand, the right end of the pressure blowing duct 114 is closed by the right plate-shaped frame forming body 111.

  As shown in FIG. 15, the left end of the pressure blower duct 114 can be connected to and disconnected from a pressure blower supply unit 115 such as a blower. Further, the feeding portion 72 is connected in communication with a midway portion of the pressure blowing duct 114. In this way, by supplying the fertilizer pressure blown air from the pressure blower supply unit 115 through the pressure blower duct 114 to each feed unit 72, the fertilizer fed from each feed unit 72 is intermittently pumped through each fertilizer hose part 74. Thus, fertilizer is applied in the vicinity of the seedlings planted in each seedling planting strip.

  As shown in FIGS. 15 and 16, the pressurized air supply unit 115 is provided with an intake port portion 117 and a discharge port portion 118 in the main body 116, and external air sucked from the intake port portion 117 is discharged from the discharge port portion 118. It is made to discharge. The pressurized air supply part 115 is attached to a supply part attachment body 128 provided continuously with the left plate-like frame formation body 111 via an attachment bracket 119. The supply part mounting body 128 is formed in a plate shape, and is connected to the front end portion of the left plate-like frame forming body 111 so as to protrude forward in a standing state. Then, a pair of upper and lower flange pieces 120 and 120 are formed on the upper and lower edge portions of the supply portion mounting body 128 so as to project outward and extend in the front-rear direction. The mounting bracket 119 is formed by a bracket main body 121 attached to the main body 116 of the pressurized air supply unit 115 and a pair of upper and lower mounting arm pieces 122 and 122 projecting from the bracket main body 121. And the front-end | tip part of a pair of up-and-down flange piece 120,120 is pivotally supported on the front-end | tip part of a pair of up-and-down pair arm piece 122,122 via the pivots 123 and 123 which orient | assigned the axis line to the up-down direction. Both pivot shafts 123 and 123 are arranged on the same axis extending in a substantially vertical direction. Reference numeral 173 denotes a connection / fixing tool such as a patchon lock. The connection / fixation tool 173 includes a locking hook 174 provided on the bracket body 121, a connection operation piece 175 provided on the plate-like frame forming body 111, and a locking piece. 176. Reference numeral 177 denotes a spacing-holding protrusion provided on the bracket main body 121 and abuts on the plate-like frame forming body 111.

  In this way, as shown in FIG. 17, when the pressure air supply unit 115 is rotated to the pressure air duct 114 side about the pivots 123 and 123 via the mounting bracket 119, the pressure air supply unit 115 communicates with the same pressure air duct 114. The discharge port portion 118 is aligned with the open end portion 124 of the connecting body 129 that is continuously provided, and both can be connected in a connected state (hereinafter, the posture of the pressure blower supply portion 115 is referred to as a connection posture (c)). . At this time, the bracket body 121 of the pressurized air supply part 115 is connected and fixed to the plate-like frame forming body 111 of the support frame part 70 by the connecting / fixing tool 173. In addition, as shown in FIG. 16, when the pressure air supply unit 115 is rotated in a direction away from the pressure air duct 114 around the pivots 123 and 123 via the mounting bracket 119, the opening of the pressure air supply duct 114 is opened. The discharge port part 118 can be separated from the end part 124, and the both can be disconnected (hereinafter, the attitude of the pressure air supply part 115 is referred to as a connection release attitude). At this time, the connection / fixation between the plate-shaped frame forming body 111 and the bracket body 121 by the connection / fixing tool 173 is released in advance. Here, when the pressure blast supply unit 115 takes the disconnection posture, the operation of the same pressure blast supply unit 115 is forcibly stopped to ensure safety.

  Moreover, as shown in FIG. 16, the pressure blower supply unit 115 avoids interference with the left movable side fertilizer 78 that adopts the connection release posture rotated to the maximum, that is, the discharge posture (b). The posture can be freely changed to the posture (d). Specifically, when the posture of the pressurized air supply unit 115 is changed to the interference avoidance posture (d), the pair of upper and lower flange pieces 120 and 120 and the pair of upper and lower mounting arm pieces 122 and 122 are connected to the pivots 123 and 123. An obtuse angle (for example, 135 degrees) having a constant inner angle is formed at the center. In this way, by changing the posture of the pressure blower supply unit 115 to the interference avoidance posture (d) disposed outside the rotation trajectory of the left movable fertilizer 78 taking the discharge posture (b), the pressure blower supply unit 115 and Interference with the left movable fertilizer 78 is avoided.

  Therefore, when changing the posture of the left movable fertilizer 78 to the discharge posture (b), by changing the posture of the pressurized air supply unit 115 to the interference avoidance posture (d) in advance, the left side adopting the discharge posture (b). It is possible not to interfere with the movable fertilizer 78.

  The pressurized air supply unit 115 is held in the interference avoidance posture (d) by the posture holding means 125. In other words, the posture holding means 125 projects a plate-like posture holding body 126 formed of spring steel on the front portion of the upper flange piece 120 so as to protrude outward in a horizontal shape (with the surface facing up and down). A conical convex portion 127 that protrudes upward from the tip of the same posture holding body 126 is formed so as to be raised upward from below.

  In this way, when the pressure blower supply unit 115 is changed to the interference avoidance posture (d), the mounting arm piece 122 is rotated forward against the elasticity of the convex portion 127 around the pivot 123. Then, it is moved to a position immediately before the convex portion 127. Further, the mounting arm piece 122 is restricted so as not to be rotated further forward. Therefore, the pressurized air supply unit 115 is held in the interference avoidance posture (d). When changing the posture of the pressure blower supply unit 115 to the connection posture (c), the mounting arm piece 122 is rotated backward against the elasticity of the convex portion 127 around the pivot 123, thereby The interference avoidance posture (d) is released by moving to the rear position 127.

  As described above, since the pressurized air supply unit 115 can be held in the interference avoidance posture (d) by the posture holding means 125, the fertilizer application device M itself is tilted due to unevenness such as a farm scene or when a gust of wind blows. In addition, the pressure blower supply unit 115 can be held in the interference avoidance posture (d), and the interference with the left movable fertilizer 78 that adopts the discharge posture (b) can be steadily avoided. Moreover, it is also possible to prevent an accident from occurring by changing the posture of the pressurized air supply unit 115.

[Hopper part 73]
As shown in FIGS. 6, 18, and 19, the hopper 73 has an upper forming body 130 formed in a rectangular tube shape with upper and lower surfaces opened, and gradually contracted downward from the lower edge of the upper forming body 130. The lower forming body 131 is formed in a funnel shape with a diameter. Then, the upper forming bodies 130, 130, 130 of the three hopper portions 73, 73, 73 are connected in an adjacent state in the left-right width direction to form a part of the left movable side fertilizing portion 78, and 3 The upper forming bodies 130, 130, 130 of the individual hopper portions 73, 73, 73 are connected in an adjacent state in the left-right width direction to form a part of the right movable side fertilizing portion 79 described above. In addition, the right movable side fertilization part 79 is comprised similarly to the left movable side fertilization part 78 fundamentally. Therefore, the configuration of the left movable side fertilizer 78 will be specifically described below, and the configuration of the right movable side fertilizer 79 will be the same as that of the left movable side fertilizer 78. Detailed description thereof will be omitted.

  The hopper 73 is formed of a lightweight, hard material and high-stiffness synthetic resin (for example, polypropylene), so that the three hoppers 73, 73, 73 integrally connected to the left movable side fertilizer 78 are strength members. It is functioning as. That is, the rigidity of the left movable-side fertilizer 78 that is freely changeable between the feeding posture (a) and the discharging posture (b) can be secured by the three hopper portions 73, 73, 73 as strength members. I have to. Therefore, the left movable side fertilizer 78 can be reduced in weight, and the posture change work of the left movable fertilizer 78 can be easily performed.

  Moreover, as shown in FIG. 19, the side wall 132 between the adjacent upper forming bodies 130 and 130 is largely cut out to form a communication port 133 communicating with the side wall 132 in the left-right direction. Reference numeral 134 denotes a lid that opens and closes the upper end openings of the three upper forming bodies 130, 130, and 130. A sieve net (not shown) is disposed in each upper forming body 130 so that only fertilizer having a certain size or less is supplied to the feeding portion 72.

  In this way, the upper formed bodies 130, 130, 130 of the three hopper portions 73, 73, 73 that form a part of the left movable side fertilizer 78 are arranged in the left-right direction via the communication ports 133, 133. Communicate. Then, when the left movable side fertilizer 78 is flipped up substantially vertically from the recumbent-shaped feeding posture (a) to the discharging posture (b) in which the discharging portions 80, 80 are directed downward, The fertilizer remaining in the upper part and the middle part of the movable side fertilizer 78 can flow down to the lower part through the communication ports 133 and 133, and all the fertilizer remaining in the left movable side fertilizer 78 is discharged. It is possible to discharge firmly from 80.

  Moreover, the discharge part 80 for discharging | emitting the fertilizer which remains inside is provided in the outer side edge part (left side edge part) of the left side movable fertilization part 78. As shown in FIG. That is, as shown in FIG. 20, the discharge part 80 includes a discharge port part 136 formed in an opening shape on the outer wall (left side wall) 135 of the hopper part 73 disposed at the outer end part (left end part). A storage frame 137 continuously provided along the peripheral edge of the outlet 136, a discharge guide 138 attached to the storage frame 137 so as to be freely inserted and removed, and a storage frame 137 for inserting and removing the discharge guide 138. And inner and outer opening / closing lid bodies 139 and 140 for opening and closing the lid. The inner opening / closing lid body 139 and the outer opening / closing lid body 140 are positioned on the outer side of the proximal end opening edge 141 of the discharge guide body 138 and are attached to the storage frame body 137 so as to be freely opened and closed. In addition, in the storage frame 137, a guide body storage space 142 is formed between the closed inner opening / closing lid 139 and the outer opening / closing lid 140. In the guide body accommodating space 142, the remaining part of the discharge guide body 138 except for the base end opening edge portion 141 can be stored in a folded state.

  As shown in FIG. 18, the discharge port portion 136 is formed to have a large rectangular opening so as to leave a marginal portion of the outer wall (left side wall) 135 of the hopper portion 73 slightly. The storage frame body 137 is formed in a rectangular frame shape along the peripheral edge of the discharge port portion 136, and is formed to have a lateral width that can secure a guide body storage space 142, that is, a space for storing the discharge guide body 138. .

  The discharge guide body 138 is formed in a cylindrical shape with a flexible material (for example, nylon), and as shown in FIG. 20, the inner peripheral edge portion of the storage frame body 137 formed along the peripheral edge portion of the discharge port portion 136. The outer peripheral edge portion of the base end opening edge portion 141 is continuously provided. Therefore, the hopper 73 having the discharge port portion 136 and the discharge guide body 138 communicate with each other via the storage frame body 137. The discharge guide body 138 can be expanded and contracted. In this embodiment, the discharge guide body 138 is shortened by being folded in a zigzag shape, and can be stored in the guide body storage space 142 formed in the discharge guide body 138. Moreover, it can be expanded by extending it in an expanded state, and the degree of freedom of the arrangement position of the tip opening 144 of the discharge guide 138 can be ensured. That is, in the use posture (i) (see FIGS. 27 and 28) in which the discharge guide body 138 is suspended in the extended state, and the non-use posture (j) (see FIGS. 24 and 25) stored in the folded state. The posture can be freely changed. Accordingly, when the residual fertilizer H is discharged, the residual fertilizer H is steadily recovered in the recovery container K by adopting the usage posture (i) in which the discharge guide body 138 is suspended in the extended state toward the recovery container K. be able to. In addition, after the discharge work is completed, the discharge guide body 138 is folded into a shortened state to be in a non-use posture (j), and the discharge guide body 138 does not interfere with the subsequent work. Therefore, the freedom degree of the discharge position of the residual fertilizer H discharged | emitted from the discharge port part 136, the simplicity and solidity of discharge work increase, and discharge work performance improves.

  As shown in FIGS. 18 to 20, the inner opening / closing lid body 139 is formed in a rectangular plate shape along the inner peripheral surface of the storage frame body 137, and is pivoted on the lower part of the storage frame body 137. The lower edge is continuously connected to. As shown in FIG. 15, the pivot shaft 123 extends in the front-rear direction and is pivotally supported in a projecting manner from the storage frame body 137 in the front-rear direction. An operation body 145 extending upward is formed at one end of the pivot 123 on the protruding side. A locking piece 146 that protrudes toward the side wall of the storage frame 137 is formed at the upper end of the operation body 145, and the locking piece 146 can be engaged with and disengaged from a locking receiving piece 147 provided on the side wall of the storage frame 137. Yes. A spring 148 (see FIG. 18) as an elastic biasing body is wound around the peripheral surface of the protruding other end of the pivot 123, and the locking piece 146 is locked to the locking piece receiving piece 147 by the spring 148. Elastically biased in the direction. In this way, the inner opening / closing lid 139 has a closed posture (e) for closing the inside of the storage frame 137 in the standing posture and an opening for opening the inside of the storage frame 137 in the lying posture. The posture can be freely changed to the posture (f). In the closed position (e), the locking piece 146 of the operating body 145 is locked to the locking receiving piece 147 provided on the storage frame 137 and the locked state is elastically biased by the spring 148. The inner opening / closing lid 139 can be held in the closed posture (e). Further, when the lid is opened (f), the locking piece 146 of the operating body 145 is separated from the locking receiving piece 147 provided on the storage frame 137 against the elastic biasing force of the spring 148 (retracted). And pulling the operation body 145 outward about the axis of the pivot 123, the inner opening / closing lid body 139 can be in the recumbent posture, which is the open posture (f).

  As shown in FIGS. 15 and 20, the outer opening / closing lid 140 includes a main body 171 formed in a rectangular plate shape along the outer peripheral surface of the storage frame body 137, and an edge formed along the periphery of the main body 171. 149. The upper edge of the main body 171 is pivotally connected to the upper edge of the storage frame 137. In this way, the outer opening / closing lid 140 opens the outer side of the storage frame 137 in the closed posture (g) for closing the outer side of the storage frame 137 in the hanging posture, and the posture in which the outer opening / closing lid 140 is flipped upward. The posture can be freely changed to the lid opening posture (h). Here, in the closed posture (g), the lower edge 150 of the outer opening / closing lid 140 engages with a locking piece 172 provided on the lower surface 151 of the storage frame 137.

  A guide body accommodation space 142 is formed between the inner opening / closing lid body 139 and the outer opening / closing lid body 140 configured as described above, and the discharge guide body 138 is folded in the guide body accommodation space 142. And can be stored. That is, by setting the inner opening / closing lid 139 to the closed posture (e), the discharge port 136 can be closed and the inner side of the storage frame 137 can be closed. At this time, the remaining portion of the discharge guide body 138 excluding the base end opening edge portion 141 can be disposed on the guide body accommodation space 142 side. Then, the extended discharge guide body 138 is folded and stored in the guide body storage space 142. Subsequently, the outer opening / closing lid 140 is set to the closed posture (g). In this manner, the discharge guide body 138 can be simply stored in the guide body accommodation space 142 with a simple structure and can be stored in a non-use state. Further, when the discharge guide body 138 is pulled out from the guide body storage space 142, it can be easily pulled out and put into use by following the procedure opposite to the above-described storage procedure. In addition, since the inner and outer opening / closing lids 139 and 140 are provided in the discharge portion 80, it is possible to satisfactorily ensure the closeability of each discharge portion.

  Further, as shown in FIG. 14, the left movable side fertilizer 78 is pivotally supported and connected to the left end of the support frame 70 via a rotation support arm body 81. The pivot support arm 81 includes a pair of front and rear pivot support arms 103 and 103 extending in the vertical direction, a continuous piece 152 provided between the distal ends of the pivot support arms 103 and 103, and both pivots. The reinforcing arms 153 are formed in a rectangular frame shape in a side view from the reinforcing piece 153 provided between the base portions of the supporting arms 103 and 103. Reference numeral 154 denotes a hopper portion connection bracket. Further, a pivot support / connecting portion 155 is provided at the upper part of the outer surface of the left plate-like frame forming body 111 forming a part of the support frame portion 70, and the pivot support / connecting portion 155 is a pair of front and rear pivots. A pivotal support shaft 157 extending in the front-rear direction via the brackets 156, 156 is installed so that front and rear end portions 158, 159 are projected. The base end portions of the pair of front and rear rotation support arm bodies 81 and 81 are fitted to the front and rear end portions 158 and 159 via the boss portions 160 and 161 so as to be rotatable. In this manner, the rotation support arm body 81 is pivotally supported and connected with the rotation support shaft 157 as a center.

  As shown in FIG. 6, the left end of the left movable fertilizer 78 is connected to the continuous piece 152 of the rotation support arm body 81. That is, the upper edge portion of the lower forming body 131 of the hopper portion 73 located at the left end portion of the left movable side fertilizing portion 78 is connected to the continuous piece 152 of the rotation support arm body 81. Further, the lower edge portion of the lower forming body 131 of the hopper portion 73 is connected to the hopper portion connection bracket 154 of the rotation support arm body 81. In this manner, the left movable side fertilizer 78 is pivotally supported / connected to the left end of the support frame 70 via the pivot support arm 81 so that the pivot support / connector 155 is pivotally supported. By rotating about a shaft 157, the posture can be freely changed between a paying-out posture (a) in a recumbent state and a discharging posture (b) in a flip-up state.

  In addition, as shown in FIGS. 6 and 8, contact surfaces 162 and 162 are formed at the base end edge portions of the pair of front and rear rotation support arms 103 and 103, respectively. Then, when the left movable side fertilizer 78 is pivoted up via the pivot support arm 81, the contact surfaces 162, 162 formed at the base end edge of the pivot support arms 103, 103 are left. The rotation of the left movable fertilizer 78 in the flip-up direction is restricted by a constant rotation angle θ (for example, 115 degrees). . In other words, the left movable side fertilizer 78 takes the discharge posture (b) at such a constant rotation angle θ. Here, when the rotation angle θ is an obtuse angle, the gravity center position G of the left movable fertilizer 78 in the discharge posture (b) is more outward than the rotation support shaft 157 of the pivot / connector 155. To be located. Therefore, the left movable side fertilizer 78 is restricted and rotated stably in the standing discharge posture (b) which is raised substantially vertically. Therefore, there is no need to provide means for fixing the left movable fertilizer 78 in such a discharge posture (b), and there is no need to change the posture to the feeding posture (a) after releasing the fixed state. As a result, the operation of discharging the residual fertilizer from the discharge unit 80 can be performed efficiently.

  Further, as shown in FIG. 15, a support arm 163 protrudes from the middle of the rear rotation support arm 103 toward the rear lower side. A left end of a circular auxiliary frame 164 extending in the left-right direction is connected to the distal end of the support arm 163. Reference numeral 165 denotes a reinforcing piece continuously provided in a superposed state on the lower surface of the left end portion of the auxiliary frame 164. The auxiliary frame 164 is connected at its midway part to the three feeding parts 72 via the connecting pieces 166, and is laid behind the three feeding parts 72, with the right end at the left movable side fertilizing part 78. It is located inside. An auxiliary frame receiving body 167 protrudes rearward and upward at the upper rear end of the left plate-like frame forming body 111. A receiving recess 168 for receiving the auxiliary frame 164 is formed at the distal end of the auxiliary frame receiver 167.

  In this way, when the left movable side fertilizer 78 is brought into the extended posture (a), the left end (base end) of the auxiliary frame 164 engages with the receiving recess 168 from above, and the left movable The base end side of the side fertilizer 78 can be positioned at an appropriate feeding posture (a) position. And the engagement recessed part 170 of the support leg 169 which is the front end part side of the left movable side fertilization part 78 mentioned later is engaged firmly with the upper frame formation body 99, The front end side of the left movable side fertilization part 78 The part can also be positioned at an appropriate feeding posture (a) position.

  As shown in FIGS. 11 and 12, the left movable side fertilizer 78 is provided with an operation gripping body 180 as a gripping body when performing posture change operation between the feeding posture (a) and the discharging posture (b). . That is, out of the three hopper portions 73 provided on the left movable side fertilizing portion 78, the front surface portion of the lower forming body 131 of the central hopper portion 73 and the outer surface portion of the lower forming body 131 of the inner hopper portion 73. The operation gripping body 180 is laid across the first and second support arm bodies 181 and 182. Here, the operation gripping body 180 includes a left and right extension part 183 extending in the left and right direction along the front surface of the central and inner hopper parts 73, and a second support arm body from the right end of the left and right extension part 183. A front-rear extension part 185 extending in the front-rear direction toward the front end of 182 is formed in a bowl shape in plan view.

  As shown in FIG. 12, a pivotal support 186 is projected inwardly at the distal end of the second support arm body 182, and the middle part of the operation lever body 187 is pivotally supported by the pivotal support 186. Thus, the clutch lever 84 provided at the inner end portion of the left extension operating shaft 82 is connected / disconnected by the operation lever body 187. That is, the operating lever body 187 is formed in a bowl shape in a plan view from a front / rear extension piece 188 extending in the front / rear direction and an outer side extension piece 189 extending outward from the front end of the front / rear extension piece 188. The front / rear extension piece 188 is pivotally supported on the pivot body 186 by a pivot pin 190 whose axis is directed in the vertical direction, and on the engagement collar 191 formed on the sliding body 85 of the clutch portion 84. The end 192 is engageable. 193 also shown in FIG. 6 is a restricting pin, and the restricting pin 193 is suspended from the front end of the front / rear extension piece 188 so that the rotation of the front / rear extension piece 188 toward the outer extension piece 189 is held by the grip for operation. Regulate via body 180.

  Here, in a state where the regulation pin 193 is in contact with the operation gripping body 180 and restricts the rotation of the front / rear extension piece 188 toward the outer side extension piece 189, the left and right extension parts 183 of the operation gripping body 180 are On the other hand, the outwardly extending piece 189 of the operation lever body 187 takes a posture in which the free end side is gradually separated. When the outward extending piece 189 of the operating lever body 187 in this state is gripped together with the left and right extending portions 183 of the operating gripping body 180, the operating lever body 187 is rotated around the pivot pin 190, and the clutch portion 84 is rotated. The rear end portion 192 is engaged with the engagement flange 191 formed on the sliding body 85, and the sliding body 85 is slid to be disconnected from the right clutch portion 84, that is, disconnected. Therefore, the left movable side fertilizer 78 is removed from the extended posture (a) without taking back the hand while holding the outwardly extending piece 189 of the operating lever body 187 and the left and right extended portions 183 of the operating gripping body 180. The next operation of changing the posture to b) can be performed continuously and smoothly.

  As shown in FIGS. 6 and 18, the rear end portion (base end portion) of the front and rear extension portion 185 of the operation gripping body 180 and the second support arm body are provided on the inner end portion of the left movable side fertilizer 78. A support leg 169 is suspended from a connecting portion with the 182. The lower end portion of the support leg 169 is engaged with the support frame portion 70 in the extended posture (a) to position the left movable side fertilizer 78. In other words, the support leg 169 is formed in an L-shaped cross section from a plate-like left and right side surface portion 194 extending in the vertical direction and a front and back surface portion 195. The left and right side surface portions 194 are formed with a gradually increasing front-rear width from the upper end toward the lower end, and a semicircular arc-shaped engaging recess 170 (see FIG. 10) is formed at the lower end portion. The support leg 169 is directed to the upper frame forming body 99 formed in a tubular shape having a circular cross section from the connecting portion of the rear end portion (base end portion) of the front / rear extension portion 185 and the second support arm body 182. In this manner, the engaging recess 170 can be engaged and disengaged in an approximately orthogonal state from above in the upper frame forming body 99. Here, in a state in which the engaging recess 170 is engaged with the upper frame forming body 99, the movement of the left movable side fertilizer 78 is controlled in the front-rear direction and the downward direction. And downward positioning. The engaging recess 170 is provided with a buffer body such as a rubber material along the inner edge thereof, and the engaging recess 170 can be engaged with the upper frame forming body 99 via the buffer body. You can also.

  As described above, the inner end portion of the left movable side fertilizer 78, that is, the connecting portion between the rear end portion (base end portion) of the front and rear extension portion 185 of the operation gripping body 180 and the second support arm body 182 is provided. The support leg 169 is suspended from the bottom, and the engaging recess 170 formed in the lower end portion of the support leg 169 is engaged with the upper frame forming body 99 of the support frame portion 70 in the extended posture (a). Yes. At this time, since the support leg 169 is attached to the base end side of the operation gripping body 180, the operation gripping body 180 is gripped and the engaging recess 170 of the support leg 169 is engaged with the upper frame forming body 99. It is possible to easily and steadily perform the hand operation to be combined. As a result, the left movable side fertilizer 78 can be firmly positioned in the extended posture (a). Therefore, the posture change from the positioned feeding posture (a) to the discharging posture (b) can be smoothly performed, and the discharging operation can be performed efficiently. Then, an engaging recess 170 formed on the lower end portion of the support leg 169 is engaged with the rod-shaped upper frame forming body 99 provided on the support frame portion 70 in a substantially orthogonal state from above. Therefore, the left movable side fertilizer 78 can be positioned firmly with a simple structure in the extended posture (a). Further, when the engaging recess 170 can be freely engaged with the upper frame forming body 99 via the buffer body, the upper frame forming body 99 is engaged with the posture change operation of the left movable fertilizer 78. It is possible to prevent the concave portion 170 from being damaged from each other at the time of engagement and the generation of abnormal noise.

  The left movable side fertilizer 78 has a frame in the front view or the back view with the support frame 70, the rotation support arm 81, and the support leg 169 in the extended horizontal posture (a). Frame-like positioning body F is formed (see FIG. 13; FIG. 13 is an explanatory view of the posture change of the right movable fertilizer 79, but the left movable fertilizer 78 is similarly frame-shaped. A positioning body F is formed). That is, in the extended posture (a), the operation grip body 180 is attached to the inner end of the left movable fertilizer 78 via the first and second support arm bodies 181 and 182, A support leg 169 is suspended from the rear end (base end) of the extended portion 185. Then, by engaging an engagement recess 170 formed at the lower end of the support leg 169 with the upper frame formation body 99 of the support frame portion 70, the upper frame formation body 99 of the support frame portion 70 and the rotation support are supported. The arm body 81, the left movable fertilizer 78, the first and second support arm bodies 181 and 182, the operation grip body 180, and the support leg body 169 form a frame-shaped positioning body F. And by forming this frame-shaped positioning body F, when changing the posture of the left movable side fertilizer 78 from the discharge posture (b) to the extended posture (a), the left movable side fertilizer 78 can be easily and reliably placed. Can be positioned. Here, in the case of the right movable fertilizer 79 described above, when the posture is changed from the discharging posture (b) to the feeding posture (a), the input gear 92 is engaged with and connected to the output gear 97 from above. However, since the feeding posture (a) is reliably positioned by forming the frame-shaped positioning body F, the input gear 92 and the output gear 97 can be engaged and connected smoothly and firmly. Further, it is possible to prevent the positional deviation between the upper side feeding body 76 provided in the left movable side fertilizing section 78 and the lower side feeding body 75 provided in the support frame section 70, and the consistency between the both feeding bodies 75 and 76. In addition, good connectivity can be ensured. Moreover, the fertilizer M can be made into a frame structure and the rigidity can be improved.

  Here, as shown in FIGS. 6, 8, 13, and 18, the lower end portion of the pivot 186 and the upper end portion of the plate-like connection support body 197 formed from the upper frame formation body 99 are formed. A connecting / fixing tool (in this embodiment, a so-called patch-on lock) 198 is interposed therebetween. That is, as shown in FIGS. 13 and 18, the connecting / fixing tool 198 is formed by bending a locking hook 199 downwardly in a concave shape at the lower end of the pivot 186, while the connecting support 197 A locking piece 201 formed in a gate shape is attached to the upper end portion via a connection operation piece 200. Then, compression springs 202, 202 are interposed in the middle part on the left and right sides of the locking piece 201, and the middle part of the locking piece 201 is elastically urged in a contracting direction in a contractible manner.

  In this way, the locking piece 201 is locked to the locking hook 199 via the connecting operation piece 200, and the locking piece 201 is connected to the compression springs 202, 202 via the connecting operation piece 200 in the same state. By pulling downward against the elastic biasing, the inner end of the left movable fertilizer 78 can be connected and fixed to the support frame 70 in a pressing biased state. Therefore, when performing the fertilization work with the left movable fertilizer 78 in the extended posture (a), the locking piece 201 is locked to the locking hook 199 via the connection operation piece 200 as described above. By connecting and fixing the inner end of the left movable fertilizer 78 to the support frame 70, a strong frame-shaped positioning body F is formed. In addition, when the residual fertilizer is discharged with the left movable side fertilizer 78 in the discharging posture (b), the locking piece 201 is locked from the locking hook 199 via the connecting operation piece 200 in advance. The connection / fixation of the inner end of the left movable side fertilizer 78 and the support frame 70 is released.

  In addition, as described above, the rotation support arm body 81 is attached to the left end portion of the support frame portion 70. That is, the rotation support arm body 81 has a pair of front and rear rotation support arms 103 opposed to each other in the axial direction via a rotation support shaft 157 whose axis is directed in a direction orthogonal to the extending direction of the support frame portion 70. The base end portion of 103 is pivoted. And, by connecting the outer side surface portion of the hopper portion 73 formed in a box shape to the continuous piece 152 laid between the distal end portions of both the rotation support arms 103, 103, it is formed in a rectangular frame shape in side view, A three-dimensional frame-shaped positioning body F having a depth in the axial direction of the rotation support shaft 157 is formed. Therefore, the rigidity of the frame-shaped positioning body structure can be further increased. As a result, the positioning at the time of changing the posture of the left movable fertilizer 78 from the discharge posture (b) to the feeding posture (a) becomes steady. Since the feeding posture (a) is firmly positioned, the smoothness and solidity of the meshing / connection between the input gear 92 and the output gear 97 can be improved. In addition, the rigidity of the fertilizer application device M having a frame structure can be further increased. As a result, the support structure of the left movable side fertilizer 78 can be made strong, and the posture changing operation of the left movable fertilizer 78 can be ensured satisfactorily.

[Feeding section 72]
As shown in FIGS. 8 to 10, each feeding portion 72 forms the above-described upper-side feeding body 76 and lower-side feeding body 75 so as to be separable and joinable. Here, the upper-side feeding body 76 communicates with the hopper portion 73 disposed immediately above to form a part of the left or right movable side fertilizing portions 78 and 79 described above. On the other hand, the lower-side feeding body 75 forms a fixed-side fertilization portion 77 with the support frame portion 70 and a fertilization hose portion described later.

  As shown in FIG. 19, the upper-side feeding body 76 is formed by sequentially connecting and connecting a carry-in case 210, a mechanism case 211, and a feeding case 212 in the vertical direction.

  The carry-in case 210 includes a top end connection piece 213 formed in a rectangular frame shape whose upper and lower surfaces are open, and a case formed in a funnel shape by gradually extending from the peripheral edge of the bottom end of the top end connection piece 213 toward the rear lower side. The main piece 214 is formed. Then, the upper end connection piece 213 is fitted into and connected to the lower end opening 215 of the lower forming body 131 of the hopper 73. Further, as shown in FIG. 12, the left and right side surfaces 216, 216 of the case main piece 214 are substantially vertical surfaces and have a rectangular horizontal section. In the carry-in case 210, a carry-in path 217 is formed in which the fertilizer is naturally dropped by its own weight from the hopper 73 into the feed-out portion 72 and carried. After the fertilization work, fertilizer may remain in the carry-in path 217 of the carry-in case 210, and the residual fertilizer remaining in the carry-in path 217 is discharged easily and steadily and quickly from the discharge section 80 described above. It is possible.

  That is, as shown in FIG. 8, the axis P of the carry-in case 210 of the upper feeding body 76 is set so that the hopper 73 side is inclined downward in the discharging posture (b), and the carrying case of the upper feeding body 76. The fertilizer remaining in 210 is discharged from the discharge unit 80 through the hopper 73. In this way, the fertilizer remaining in the carry-in case 210 can be reliably discharged from the discharge portion 80 only by setting the left movable side fertilizer 78 to the discharge posture (b). Accordingly, it is possible to improve the discharge work efficiency of the residual fertilizer.

  Moreover, in the discharge posture (b), the lower peripheral wall surface, that is, the left side surface portion 216 of the left movable side fertilizer 78 is formed so as to be inclined downward toward the hopper 73. In the present embodiment, the left side wall portion 135 is turned into a hopper by rotating the left side movable fertilizer 78 in a flipped manner until the rotation angle θ of the left side movable fertilizer 78 forms an obtuse angle of, for example, 115 degrees. Inclined downward toward the portion 73 side. In this way, the fertilizer remaining in the carry-in case 210 can be made to flow down along the left side wall portion 135 simply by setting the left movable side fertilizing portion 78 to the discharge posture (b), and can be made steady through the hopper portion 73. It can be discharged from the discharge unit 80. Therefore, the discharge efficiency of residual fertilizer can be improved also from this point.

  As shown in FIG. 19, the mechanism case 211 includes an eye plate housing case piece 221 that houses the eye plate 220, and a drive case piece 223 that houses a drive mechanism 222 that drives the eye plate 220 out. . The front plate storage case piece 221 has a front portion in communication with the lower end of the carry-in case 210. Reference numeral 224 denotes a lower end opening. The drive case piece 223 is formed so as to protrude upward from the center portion of the eyepiece storage case piece 221 and is disposed behind the carry-in case 210. The drive mechanism 222 housed in the drive case piece 223 is provided with a pay-out shaft 225 whose axis is directed in the up-down direction so as to be rotatable around the axis in a front and rear inclined posture. The middle part of the left or right feed operating shafts 82 and 83 is connected to the upper end of the feed shaft 225 via bevel gears 226 and 226. In addition, the center of rotation of the eye plate 220 is attached to the middle part of the feeding shaft 225.

  In the feeding case 212, the upper end opening 230 is detachably connected to the lower end opening 215 of the above-described dish receiving case piece 221. The feeding case 212 is formed in a circular funnel shape having a gradually reduced diameter downward from the upper end opening 230, and a circular feeding opening 231 as an opening edge is formed at the lower end. As shown in FIG. 21, a flange-like upper flange piece 232 is formed at the lower end opening edge 254 of the feed opening 231. Reference numeral 233 denotes a scraping piece attached to the lower end of the feeding shaft 225.

  As shown in FIGS. 18 and 19, the lower-side feeding body 75 is formed of a tubular body 240 that extends in the front-rear direction and a connecting body 241 that communicates with the middle portion of the upper peripheral surface of the tubular body 240. Yes. The tubular body 240 has a front end portion connected in communication with a midway portion of the rear peripheral surface of the pressure blower duct 114. Further, the tubular body 240 has an attachment piece 242 suspended from the middle portion of the lower peripheral surface, and the middle portion of the tubular body 240 is attached to the rear lower frame forming body 93 via the attachment piece 242.

  As shown in FIG. 21, the connecting body 241 is formed in a short cylindrical shape whose upper and lower surfaces are open, and a lower end opening edge portion is continuously connected to the middle portion of the upper peripheral surface of the tubular body 240. And the connection body 241 has opened the upper end opening edge part 255 so that it may connect coaxially with the feeding case 212 of the upper side feeding body 76 in the feeding attitude | position (a) of the left side movable fertilizer 78. . Reference numeral 243 denotes a lower flange piece formed on the outer peripheral surface of the upper end opening edge 254 of the connection body 241.

  In this way, when the left movable fertilizer 78 is in the feeding position (a), the lower opening edge of the upper feeding body 76 and the upper opening edge of the lower feeding body 75 are in the vertical direction. In alignment, the upper side flange piece 232 of the upper side feeding body 76 and the lower side flange piece 243 of the lower side feeding body 76 face each other vertically and are connected in a communicating state via a gasket body 245 described later. I am doing so. At this time, each lower-side feeding body 76 supports each upper-side feeding body 76 from below.

  The gasket body 245 as a sealing material attached to the feeding opening 231 of the upper side feeding body 76 will be described. That is, as shown in FIGS. 21 and 22, the gasket body 245 includes a ring-shaped mounting body 246 that is mounted on the upper flange piece 232 formed at the lower end opening edge of the upper side feeding body 76, and a lower side feeding. And a ring-shaped receiving body 247 for receiving the lower flange piece 243 formed on the upper end opening edge 254 of the body 75 so as to be separated and closely contacted. On the receiving surface side of the receiving body 247, concentric short cylindrical inner / outer contact pieces 248 and 249 are provided in a protruding manner so as to be able to bend and deform with an interval in the radial direction.

  More specifically, in this embodiment, the mounting body 246 and the receiving body 247 may be integrally formed of a rubber material (for example, EPDM which is a terpolymer of ethylene, propylene, and a diene monomer for crosslinking). it can. That is, on the inner peripheral surface of the main body 250 formed in a skirt shape by gradually expanding the diameter from the upper end to the lower end, the outer peripheral edge of the ring-shaped locking piece 251 is integrally attached to the upper peripheral edge. A mounting body 246 is formed so that 251 extends inwardly of the main body 250, and an outer peripheral edge portion of a ring-shaped receiving body 247 is integrally attached to a peripheral edge portion of the middle portion, and a receiving surface side of the receiving body 247 ( The upper peripheral edge of the concentric short cylindrical inner / outer contact pieces 248, 249 is integrally attached to the lower surface. The inner and outer contact pieces 248 and 249 are each formed in a skirt shape that gradually increases in diameter from the upper end to the lower end, and are arranged in the main body 250 and are substantially parallel to the main body 250.

  In this way, when the left movable fertilizer 78 is brought into the feeding position (a), the main body 250 of the gasket body 245 attached to the upper feeding body 76 opens the opening edge of the lower feeding body 75 from above. Cover. The inner / outer contact pieces 248 and 249 receive a pressing force from below by the opening edge of the lower-side feeding body 75. At this time, the inner and outer contact pieces 248 and 249 are deflected outward and the inner peripheral surfaces 252 and 253 of the inner and outer contact pieces 248 and 249 are in surface contact with the upper end surface 256 of the lower-side feeding body 75. Like to do. Therefore, the gasket body 245 can satisfactorily ensure the sealing performance of the connecting portions of the upper and lower side feeding bodies 76 and 75 communicating in the feeding posture (a). In addition, when the posture of the left movable side fertilizer is changed between the feeding posture (a) and the discharging posture (b), the upper and lower opening edges 255 and 254 of the upper and lower feeding bodies 76 and 75 repeat separation and joining. Can be protected, and good sealing performance can be secured.

  Here, as described above, when the posture is changed from the discharging posture (b) to the feeding posture (a), the engaging recess 170 of the support leg 169 is engaged with the upper frame forming body 99, and the frame-shaped positioning is performed. A body F is formed. Therefore, the movement of the left movable side fertilizer 78 in the front-rear direction and the downward direction is restricted, and the left movable side fertilizer 78 is positioned in the front-rear direction and in the downward direction. Then, by positioning the feeding posture (a), it is possible to prevent the positional deviation between the upper feeding body 76 provided in the left movable fertilizer 78 and the lower feeding body 75 provided in the support frame 70. Thus, it is possible to satisfactorily ensure the consistency and connectivity of the two feeding bodies 75 and 76. As a result, it is possible to reduce the wear and the like of the gasket body 245 interposed between the feeding bodies 75 and 76 and to extend the life as much as possible. Further, the lower-side feeding body 75 firmly supports the upper-side feeding body 76 via the gasket body 245, so that the posture of the left movable-side fertilizer 78 whose posture is changed to the discharging posture (b) and the feeding posture (a) is shown. The feeding posture (a) can be secured satisfactorily. As a result, the feeding performance of the feeding unit 72 can be maintained satisfactorily.

  Further, when the left movable fertilizer 78 adopts the discharging posture (b), the receiving body 247 of the gasket body 245 attached to the lower end opening edge 254 of the upper side feeding body 76 is the lower side feeding body 75. The left movable side fertilizer 78 can be smoothly placed in the discharge posture (b) by being easily separated from the upper end opening edge.

  When the gasket body 245 is attached to the upper side feeding body 76, the mounting body 246 is attached to the bowl-shaped upper side flange piece 232 formed at the outer peripheral edge at the lower end of the feeding port portion 231. At this time, the ring-shaped locking piece 251 of the mounting body 246 is locked to the upper peripheral surface of the upper side flange piece 232, and the flange is formed between the lower peripheral surface of the locking piece 251 and the upper peripheral surface of the receiving body 247. The upper and lower peripheral surfaces of the piece 232 are firmly held. Therefore, the gasket body 245 can be easily detached from the flange piece 232 of the upper-side feeding body 76 even when the left movable-side fertilizer 78 is frequently changed from the feeding position (a) to the discharging position (b). Absent.

  In the present embodiment, the gasket body 245 is attached to the lower end opening edge portion 255 of the upper side feeding body 76 as described above, but may be attached to the upper end opening edge portion 254 of the lower side feeding body 75. In this case, the gasket body 245 can be used upside down.

  As described above, in the feeding portion 72 in which the left movable side fertilizer 78 is in the feeding position (a), the upper side feeding body 76 receives the fertilizer supplied from the hopper 73 by a certain amount and the tubular body 240 of the lower side feeding body 75. I am trying to pay out intermittently. In addition, pressurized air is supplied to the tubular body 240 through the pressure air duct 114. Accordingly, the fertilizer fed to the tubular body 240 is fertilized through a fertilization hose portion 74 described later by pressure blowing.

[Fertilization hose part 74]
As shown in FIGS. 1, 2 and 5, the fertilization hose portion 74 includes a proximal fertilization hose body 260 having flexibility, a midway fertilization hose body 261 having rigidity, and a distal end side having elasticity. The fertilization hose body 262 is formed. And the fertilization hose part 74 is connected to the rear end of the tubular body 240 of each feeding part 72, and the fertilization work can be performed for each planting line through each fertilization hose part 74.

  As shown in FIGS. 23 and 24, the midway fertilization hose body 261 is made of a hard material (for example, polypropylene) and has a length extending in the vertical direction from the center portion to the lower end portion of the seedling mount 58. The midway fertilization hose body 261 is disposed between the seedling placing table 58 and the lateral feed mechanism 59 described above. Further, in the midway portion of the midway fertilization hose body 261, an avoidance concave portion 263 for avoiding interference with another object, in this embodiment, the lateral feed mechanism 59 is formed. Moreover, the internal channel cross-sectional area of the avoidance recess 263 is substantially the same as the other internal channel cross-sectional areas of the midway fertilization hose body 261.

  In this way, the avoidance recess 263 for avoiding interference with the lateral feed mechanism 59 is formed in the middle portion of the midway fertilization hose body 261, and the internal channel cross-sectional area of the avoidance recess 263 is the other internal Since it is substantially the same as the cross-sectional area of the flow path, it is possible to satisfactorily secure the fertilizer transportability while avoiding interference with the lateral feed mechanism 59.

  The proximal end fertilization hose body 260 has a proximal end detachably connected to the tubular body 240 and a distal end connected to the proximal end (upper end) of the midway fertilization hose body 261. The midway fertilization hose body 261 is disposed as described above, and the distal end (lower end) is connected to the proximal end of the distal end side fertilization hose body 262. The distal end side fertilization hose body 262 is connected to the groove forming device 264 attached to the floats 61 and 62 at the distal end. Thus, the fertilizer intermittently pumped from the tubular body 240 is a groove formed by the proximal end side fertilization hose body 260 → the intermediate fertilization hose body 261 → the distal end side fertilization hose body 262 → the groove 264. To be fertilized.

[Procedure for discharging residual fertilizer]
Next, an example of the remaining manure discharge operation is shown.

  (1) As shown in FIG. 25, in the left movable side fertilizer 78 in the feeding posture (a), as shown in FIG. 26, the outer opening / closing lid 140 of the discharge unit 80 is set to the open posture (h). Eggplant. And the pressure ventilation supply part 115 is changed from a connection attitude | position (c) to an interference avoidance attitude | position (d). Specifically, the mounting arm piece 122 is rotated to the front against the elasticity of the convex portion 127 around the pivot 123 to move to the position immediately before the convex portion 127.

  (2) As shown in FIG. 27, the discharge guide body 138 housed in the guide body housing space 142 is pulled out, and the front end opening of the discharge guide body 138 is inserted into the collection container K arranged immediately below. (The discharge guide 138 is set to the use state (i)).

  (3) As shown in FIG. 27, the connection / fixing tool 198 is operated from the ground or on the traveling device 1. That is, the connection / fixation by the connection / fixing tool 198 between the inner end of the left movable fertilizer 78 forming the strong frame-shaped positioning body F and the support frame 70 is released. Specifically, the locking piece 201 is released from the locking hook 199 via the connection operation piece 200 of the connection / fixing tool 198.

  (4) As shown in FIG. 27, the outer side extending piece 189 of the operating lever body 187 is gripped together with the left and right extended portions 183 of the operating gripping body 180. Then, the operation lever body 187 is rotated around the pivot pin 190, and the clutch portion 84 is disconnected.

  (5) As shown in FIG. 28, the left movable side fertilizer 78 is fed out without bringing back the hand while holding the outwardly extending piece 189 of the operating lever body 187 and the left and right extended parts 183 of the operating gripping body 180. The posture is changed from the posture (a) to the discharge posture (b). At this time, the left movable fertilizer 78 adopts the discharge posture (b) at a constant rotation angle θ. In addition, the rotation angle θ becomes an obtuse angle, so that the gravity center position G of the left movable fertilizer 78 in the discharge posture (b) is outward from the rotation support shaft 157 of the pivot / connector 155. To be located. Therefore, the left movable side fertilizer 78 is restricted and rotated stably in the standing discharge posture (b) which is raised substantially vertically. Further, when the right movable fertilizer 79 is in the discharge posture (b), the input gear 92 is separated from the output gear 97, and the transmission of power is cut off by releasing the meshing state.

  (6) As shown in FIGS. 28 and 29, by operating the operating body 145 to bring the inner opening / closing lid 139 into the open posture (f), the discharge port 136 is opened and the storage frame 137 is opened. Open the inside. Then, the fertilizer remaining in the carry-in case 210 can flow down along the left side surface portion 216, and can be discharged firmly from the discharge portion 80 into the collection container K through the hopper portion 73.

  (7) After the residual fertilizer H is discharged from the fertilizer M, the fertilizer M can be returned to the original feeding posture (a) by following the procedure opposite to the above-described procedure.

A riding rice transplanter M fertilizer 1 traveling device 2 lifting device 3 planting device 70 support frame portion 72 feeding portion 73 hopper portion 74 fertilizer hose portion 77 fixed side fertilizer portion 78 left movable side fertilizer portion 79 right movable side fertilizer portion 80 discharge Part

Claims (2)

A fertilizer device in which a plurality of feeding portions are attached to a supporting frame portion extending in one direction along the extending direction, and a hopper portion is connected to each feeding portion.
Each feeding portion is formed so as to be separable and joinable to the lower side feeding body and the upper side feeding body,
While attaching the lower-side feeding body to the support frame portion to form a fixed-side fertilization portion,
The upper side feeding body is connected in communication with each hopper to form one movable side fertilizer and the other movable side fertilizer.
At the outer end of both movable-side fertilizer parts, a discharge part for discharging the fertilizer remaining inside is provided,
The one-side movable-side fertilizer and the other-side movable-side fertilizer are pivotally connected and connected to the side ends of the support frame portion via a pivot shaft extending in the front-rear direction , respectively, and lie substantially horizontally. It is possible to change the posture between the extended posture and the discharge posture in which the discharge portion is directed substantially vertically and directed downward.
The one-side movable-side fertilizer and the other-side movable-side fertilizer are coaxially arranged with a one-side feeding operation shaft and another-side feeding operation shaft for feeding the upper-side feeding body, respectively, and both-side feeding operation Connect the inner ends facing each other so that they can be connected and disconnected.
The one-side movable side fertilizer is provided with an input-side connecting portion that is interlocked with the one-side feeding operation shaft, and the input-side connecting portion is provided on the support frame portion in the feeding posture of the one-side movable-side fertilizer. While being connected to the connection part, in order for the input side connection part to be disconnected from the output side connection part in the discharge posture of the one side movable fertilizer application part ,
The input side connection portion is formed by pivotally supporting an input gear via an input side connection shaft protruding from the one side movable side fertilizer, while the output side connection portion is formed by supporting the support frame. The output gear is pivotally supported through an output side connecting shaft that is projected from the output section provided in the section, and the input gear meshes with the output gear from above in the extended posture of the one side movable fertilizer. The input gear is separated upward from the output gear in the discharge posture of the side movable side fertilizer, and the meshing is released.
The fertilizer application device, wherein the rotation support shaft, the input side connection shaft, and the output side connection shaft are arranged in parallel with their axes directed in the front-rear direction . A riding rice transplanter equipped with the fertilizer application device according to claim 1 .

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