JP2009065904A - Fertilizing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fertilizing unit additionally installable in a main machine of a rice transplanter of the rice transplanter and capable of facilitating discharging operation of the residual fertilizer or maintenance operation in fertilizing apparatuses. <P>SOLUTION: An assembly 114 on the upper side including fertilizing cases 135, delivery mechanisms 136 and hoppers 131 installed in the plurality of fertilizing apparatuses 130 is integrally rotated around a rotation fulcrum 116 along the front and the rear directions of the main machine 1 of the rice transplanter on the outer side in the width direction of the fertilizing apparatuses 130 on the outermost side located on the outermost side relatively to the width direction of the main machine 1 of the rice transplanter. Thereby, the assembly 114 on the upper side is separated from an assembly 115 on the lower side including connection pipes 133. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rice transplanter, and more particularly, to a fertilizer unit applied to a rice transplanter.

It is conventionally known that a fertilizer and a fertilizer blower are attached to a work vehicle main machine of a rice transplanter, and the fertilizer fed from the fertilizer is supplied to a place to be fertilized by the fertilizer blower.
Specifically, the fertilizer application apparatus includes a fertilizer hopper that stores fertilizer, a fertilizer feeding body that communicates with a lower end opening of the fertilizer hopper, and a fertilization hose that communicates with the fertilizer feeding body.
The fertilizer blower is fluidly connected to the fertilizer application device so that the fertilizer fed from the fertilizer feeding body can be pumped to a place to be fertilized via the fertilizer hose.

By the way, the fertilizer application apparatus normally uses the space between the driver's seat and the seedling stage, and is arranged along the vehicle width direction by the number corresponding to the number of rice transplanters (the number of seedling stages). It is installed side by side.
That is, four fertilizers are juxtaposed in the vehicle width direction in the four-row planting rice transplanter, and eight fertilizers are juxtaposed in the vehicle width direction in the eight-row planting rice transplanter.
Therefore, in the fertilizer application device located at the center in the vehicle width direction, it is difficult to discharge residual fertilizer in the fertilizer hopper and to perform maintenance work.

On the other hand, a configuration in which a residual fertilizer outlet is provided in each of the fertilizer supply bodies of the fertilizer application apparatus, and a discharge hose is connected to the residual fertilizer outlet to discharge the residual fertilizer in the fertilizer hopper is known. (For example, refer to Patent Document 1).
However, in such a conventional configuration, the residual fertilizer outlet and the fertilizer application are provided because the residual fertilizer outlet is provided on the side of the fertilizer supply body while avoiding the fertilizer hose at the lowest end of the fertilizer supply body. There exists a problem that the residual fertilizer cannot be removed between the hose connection portion (generally, a place where the eye plate body for feeding a certain amount of fertilizer to the fertilizer hose side) is provided.
Moreover, there is also a problem that it takes time and effort to attach a discharge hose for each of a plurality of fertilizer applicators. In particular, in a fertilizer applicator located at the center in the vehicle width direction, it is difficult and time-consuming to attach the discharge hose. Moreover, when the discharge hose is extended below the fuselage and outward of the rear wheel, it passes between the rear wheel spokes, so that mud adhering to the rear wheel spokes adheres to the discharge hose. In other words, there may be a time and effort to clean this.
Japanese Patent Laid-Open No. 2003-61420

  The present invention has been made in view of the prior art, and is a fertilizer unit that can be attached to a work vehicle main machine of a rice transplanter, and can facilitate the discharge work and maintenance work of residual fertilizer in the fertilizer application equipment. One objective is to provide fertilizer units that can be used.

  The fertilization unit according to the present invention is made to achieve the above object, and each includes a fertilization case, a feeding mechanism housed in the fertilization case, and a hopper placed on the upper surface of the fertilization case. A fertilizer unit that is attached to the rice transplanter main machine so that the plurality of fertilizers extend along the width direction of the rice transplanter main machine, the fertilizer being fixed to the rice transplanter main machine A frame, a fertilizer blower connected to a first side in the width direction of the rice transplanter machine in the fertilization frame, and an air pipe arranged along the width direction of the rice transplanter machine, wherein the fertilizer is applied to one end side And an air pipe having an opening for receiving the conveying air from the blower and having the other end closed, and the fertilizer applying device is connected to the lower opening of the fertilizer case, and the air receiving port is connected to the air pipe. Opening It has a connecting pipe having a fertilizer discharge opening for discharging fertilizer supplied through the upper opening by using a conveying wind supplied through the air receiving opening, and the fertilizer application includes the fertilizer case The upper assembly including the feeding mechanism and the hopper and the lower assembly including the connection pipe are separable, and the plurality of the upper assemblies are located on the outermost side in the width direction of the rice transplanter machine. The outermost fertilizer application device is characterized in that it can be rotated integrally around a rotation fulcrum along the front-rear direction of the rice transplanter main machine outside in the width direction.

  According to the fertilizer unit having the above-described configuration, the fertilizer unit attached to the rice transplanter machine includes a plurality of fertilizers, and fertilizer is fertilized by a hopper placed on the upper surface of each fertilizer case of the fertilizer. The feed is supplied to a feeding mechanism housed in the case, and a fixed amount of fertilizer is pumped by the feeding mechanism to perform a fertilization operation.

  In addition, a fertilizer blower is connected to the first side in the width direction of the rice transplanter machine in the fertilizer frame fixed to the rice transplanter machine, and the conveying wind from the fertilizer blower is distributed along the width direction of the rice transplanter machine. It is sent to the installed air piping. The upper opening of the connection pipe is connected to the lower opening of the fertilizer application case of the fertilizer application device, and is supplied from the upper opening of the connection pipe by feeding the conveying air into the connection pipe from the air receiving opening communicating with the air pipe. The fertilizer is discharged from the fertilizer discharge opening.

  Here, the upper assembly including the fertilizer case, feeding mechanism, and hopper provided in the plurality of fertilizers is more than the outermost fertilizer located in the outermost side in the width direction of the rice transplanter main machine. It is separated from the lower assembly including the connecting pipe by being integrally rotated about the rotation fulcrum along the front-rear direction of the rice transplanter machine outside in the width direction.

  In this way, the upper assembly in which the fertilizer remains in the fertilizer is separated from the lower assembly in which the fertilizer does not remain, and along the front-rear direction of the rice transplanter main machine in the width direction outward from the outermost fertilizer. By rotating integrally around the rotation fulcrum, it is possible to discharge the residual fertilizer from the hopper side by integrally tilting the plurality of upper assemblies, including the fertilizer remaining in the vicinity of the feeding mechanism The remaining fertilizer in the fertilizer can be removed to the maximum extent. In addition, since it is not necessary to attach a discharge hose during the discharge of residual fertilizer, the discharge of residual fertilizer can be performed easily and in a short time.

  Preferably, the upper opening of the connection pipe allows the lower end of the fertilizer case to enter when the upper assembly is coupled to the lower assembly, and the upper assembly is rotated. An elastic valve structure that substantially closes the upper opening when pivoted upward about a fulcrum is provided.

In this case, when the upper assembly and the lower assembly are coupled, the upper opening of the connection pipe enters the lower end portion of the fertilizer case, and the two communicate with each other. On the other hand, when the upper assembly rotates about the rotation fulcrum and is separated from the lower assembly, the upper opening of the connection pipe is substantially closed by the elastic valve structure provided in the upper opening.
Accordingly, when the upper assembly and the lower assembly are connected, the fertilizer can be distributed from the upper assembly to the lower assembly, while the upper opening of the connection pipe of the lower assembly is separated when the upper assembly and the lower assembly are separated. By blocking, foreign matter can be prevented from entering from the upper opening during the separation.

  Preferably, the fertilizer storage space of the hopper in one fertilizer and the fertilizer storage space of the hopper in another adjacent fertilizer are configured to allow fertilizer distribution, and the hopper in the outermost fertilizer is A fertilizer discharge port that is opened or closed by a cap is provided on the side surface close to the rotation fulcrum.

In this case, since the fertilizer storage space of the hopper in one fertilizer application and the fertilizer storage space of the hopper in another adjacent fertilizer application are enabled to distribute fertilizer, the plurality of upper assemblies are connected to the rotation fulcrum. When it is integrally rotated around, the remaining fertilizer sequentially flows from the hoppers of the other fertilizers toward the hopper in the outermost fertilizer applied at the lowermost position in the rotation. At the time of fertilization work, the fertilizer discharge port closed by the cap is opened on the side surface close to the fulcrum of the hopper in the outermost fertilizer, to the outermost fertilizer. The flowed residual fertilizer is discharged from the fertilizer outlet.
Therefore, the residual fertilizers in the plurality of fertilizer applicators can be discharged collectively from one fertilizer discharge port. This eliminates the need to attach a discharge pipe to each of a plurality of fertilizer application apparatuses, makes it possible to discharge residual fertilizer more easily and in a short time, and more easily configure the configuration of the fertilizer unit. Can do.

  More preferably, the hopper is an upper region whose opening is closed by a lid member, and a lower region that extends downward from the upper region and has a lower opening at a lower end thereof, and goes downward. And a lower region that is reduced in diameter according to the upper region, the fertilizer can be distributed to a fertilizer housing space of another adjacent hopper in the upper region, and the fertilizer discharge port is a first opening provided in the upper region And a second opening provided in the lower region.

In this case, the fertilizer discharge port includes an upper region having an opening whose upper portion is closed by the lid member, and a lower region that extends downward from the upper region and is reduced in diameter toward the lower end portion where the lower opening is provided. Provided for each.
As a result, when there is a large amount of residual fertilizer, first, the plurality of upper assemblies are integrally rotated about a rotation fulcrum by a predetermined angle to remove residual fertilizer from the second opening provided in the lower region. Let it drain. After that, the plurality of upper assemblies are further rotated around a rotation fulcrum to tighten the inclination (for example, substantially vertical), thereby providing the upper region in place of or in addition to the second opening. The residual fertilizer is discharged from the first opening.
Therefore, after discharging the residual fertilizer to some extent with the rotation angle being small, the rotation angle of the lighter upper assembly is made larger and the fertilizers including the fertilizer remaining in the vicinity of the feeding mechanism are contained. By discharging the residual fertilizer to the maximum extent, even if there is a large amount of residual fertilizer and the weight of the upper assembly is heavy, the labor of the operator can be reduced as much as possible.

  Preferably, a locking mechanism that locks the upper assembly around the rotation fulcrum at a predetermined angle is provided.

In this case, the upper assembly is locked at a predetermined angle around the rotation fulcrum by the locking mechanism.
Therefore, when discharging the residual fertilizer, it is not necessary for the operator to hold the upper assembly, and the labor of the operator can be further reduced.

  According to the fertilizer application unit of the present invention, the upper assembly in which the fertilizer remains in the fertilizer is separated from the lower assembly in which the fertilizer does not remain, and the rice transplanter main machine is located in the width direction outward from the outermost fertilizer. Since the upper fertilizer can be discharged from the hopper side by tilting the plurality of upper assemblies in an integrated manner, the residual fertilizer remains in the vicinity of the feeding mechanism. The remaining fertilizer in the fertilizer can be removed to the maximum extent including the fertilizer used. In addition, since it is not necessary to attach a discharge hose during the discharge of residual fertilizer, the discharge of residual fertilizer can be performed easily and in a short time.

Embodiments according to the present invention will be described below with reference to the accompanying drawings.
In FIG. 1, the side view of the rice transplanter A to which the fertilization unit 100 which concerns on 1st Embodiment of this invention was applied is shown.

First, the whole structure of the rice transplanter A will be described with reference to FIG.
The rice transplanter A includes a rice transplanter main machine 1, a planting device 3 attached to the rear of the rice transplanter main machine 1, and the rice transplanter main machine 1 so as to be positioned in front of the planting device 3. And a fertilization unit 100 attached to the rear.

  As shown in FIG. 1, the rice transplanter main machine 1 includes a vehicle body frame 5, a drive source 6 mounted on the front portion of the vehicle body frame 5, and the drive in a state of being operatively connected to the drive source 6. A transmission case 8 disposed behind the power source 6, a pair of front axle cases 9 disposed on both sides of the transmission case 8 in the vehicle width direction, and the pair of front axle cases 9 via a front axle 10A. A pair of paddy field front wheels 10 supported respectively, a rear axle case 12 connected to the rear portion of the transmission case 8 via a connecting frame 11, and a rear axle 13A on both sides of the rear axle case 12 in the vehicle width direction. A pair of supported paddy field rear wheels 13 are provided.

  Further, the rice transplanter machine 1 includes a bonnet 7 that covers the drive source 6, a vehicle body cover 14 that is stretched on the vehicle body frame 5 so as to cover the transmission case 8, and a vehicle body cover 14 that is provided on the vehicle body cover 14. A driver's seat 21, a steering handle 20 disposed in front of the driver's seat 21 and at the rear of the bonnet 7, and spare seedling platforms 50 provided on both sides of the bonnet 7 in the vehicle width direction. ing.

The vehicle body cover 14 includes an auxiliary step 15 disposed on both sides of the bonnet 7 in the vehicle width direction, a main step 16 disposed behind the bonnet 7, and a driver seat step disposed behind the main step 16. 17 and a rear step 18 disposed behind the driver's seat step 17.
The driver's seat step 17 and the rear step 18 are provided via a rear frame 25 erected on the vehicle body frame 5.

  The planting device 3 includes a planting case 38, a seedling stage 33, and a seedling feed belt mounted on the seedling stage so that the seedling mat placed on the seedling stage 33 can be conveyed downward. (Not shown), a rotary case 31 rotatably supported by the planting case 38, and a claw case 32 supported by the rotary case 31 and having a planting claw. ing.

In the present embodiment, the planting device 3 is for four strips in which four strip seedling platforms 33 on which four seedling mats can be placed are arranged side by side in the vehicle width direction. .
A pair of the rotary cases 31 are provided on both sides of the planting case 38 in the vehicle width direction.
In other words, in the present embodiment, the planting device 3 has two planting cases 38 for two strips and four rotary cases 31.

In FIG. 2, the schematic left view containing the partial cross section of fertilizer unit 100 vicinity of this embodiment is shown. Moreover, in FIG.3 and FIG.4, the back perspective view and front view of the fertilization unit 100 vicinity of this embodiment are shown.
As shown in FIGS. 1 and 2, the planting device 3 is a planting device provided in the rice transplanter main machine 1 in a state in which it is operatively connected to a drive output shaft 110 that transmits rotational power from the drive source 6. A planting drive case 26 having a planting input shaft (not shown) operatively connected to the attached PTO shaft 111, and a horizontal pipe case coupled to the planting drive case 26 so as to extend in the vehicle width direction. A horizontal pipe case (not shown) in which a planting drive shaft operatively connected to the planting input shaft is inserted; a pair of left and right side frames 34 erected on the horizontal pipe case; A rolling frame (not shown) extending in the vehicle width direction so as to connect the upper portions of the pair of side frames 34 is further provided.

  Further, the planting device 3 includes a center float 35 and a side float 36 disposed below the planting case 38.

The planting apparatus 3 having such a configuration is connected to the rice transplanter main machine 1 so as to be movable up and down via a lifting link mechanism 2 inserted between the body frame 5 and the planting drive case 26. Has been.
Specifically, the lifting link mechanism 2 includes a lifting link 27 extending between the machine body frame 5 and the planting drive case 26, and a lifting hydraulic pressure interposed between the lifting link 27 and the connecting frame 11. And a cylinder 28.
With such a configuration, the planting device 3 is moved up and down with respect to the rice transplanter main machine 1 by moving the lifting hydraulic cylinder 28 forward and backward.

  As shown in FIGS. 1 to 4, the fertilization unit 100 of the present embodiment is supported by the body frame 5 via a fertilization frame 39 so as to be positioned between the driver's seat 21 and the seedling stage 33. Has been.

  The fertilizer unit 100 includes a fertilizer 130 supported by the fertilizer frame 39 and a turbo blower fertilizer blower 140 that pumps fertilizer fed from the fertilizer 130.

The fertilizer application unit 100 includes a plurality of the fertilizers 130 corresponding to the number of planting strips of the rice transplanter A, so that the fertilizer fed from the fertilizers 130 can be pumped by the single fertilizer blower 140. It is configured.
Specifically, the fertilizer application unit 100 includes the air pipe 150 fixed to the fertilizer application frame 39 along the vehicle width direction in addition to the above configuration. The air pipe 150 is fluidly connected to the plurality of fertilizer applicators 130, and has an opening 112 that receives the conveyance air from the fertilizer blower 140 on one end side that is the first side (left side) in the width direction of the rice transplanter main machine 1. And the other end side which is the second side (right side) in the width direction of the rice transplanter main machine 1 is closed, and the fertilizer blower 140 is fed out from the plurality of fertilizer applicators 130 via the air pipe 150. The fertilizer is pumped.
In the present embodiment, the rice transplanter is a four-row type. Therefore, the fertilizer application unit 100 includes four fertilizer application devices 130.

  The plurality of fertilizer applicators 130 are configured to be able to supply fertilizer to be accommodated, and are arranged in parallel along the vehicle width direction behind the driver seat 21 as shown in FIGS. 1 and 2. Both have the same configuration.

In FIG. 5, the principal part disassembled perspective view of the said fertilizer application apparatus 130 is shown.
The fertilizer applying device 130 in this embodiment includes a hopper 131 having an upper opening 131a and a lower opening 131b at the upper and lower ends, a fertilization case 135 connected to the lower opening 131b of the hopper 131, and the fertilization case 135. The housed feeding mechanism 136, the cleaner mechanism 138 for removing the fertilizer attached to the inner peripheral surface of the lower case 45 described later in the fertilizing case 135, the air receiving opening 133a at one end and the fertilizer discharging opening 133b at the other end. An intermediate region 133c between the connecting pipe 133 connected to the lower end of the fertilizing case 135 below the feeding mechanism 136 (and further below the cleaner mechanism 138), and a base end portion of the fertilizer release of the connecting pipe 133 The flow communicated with the other end portion 133b acting as an outlet and corresponding to the tip portion And a fertilization hose 134 located on the side of 35 and 36.
The connecting pipe 133 is formed integrally or separately from the corresponding fertilization case 135.

  The hopper 131 accommodates fertilizer, and a lower opening 131b is connected to an upper end 135a of the fertilizing case 135 through a joining member (not shown) so as to be able to contact and separate. The upper ends of the plurality of hoppers 131 can be closed by a lid member 113 that integrally covers the upper opening 131 a of the hopper 131. The lid member 113 may be provided for each hopper 131.

  The fertilizer case 135 is connected to the lower opening 131b of the hopper 131 so that the fertilizer receiving port 44 (see FIG. 5) through which the powdered fertilizer in the hopper 131 can be introduced and the fertilizer supply communicated with the fertilizer receiving port 44 It has a mouth 41 (lower opening of the fertilizer case 135), and has an upper case 43 having the fertilizer receiving port 44, and a funnel-like (lower constricted) lower case 45 having the fertilizer supply port 41. ing. The fertilizer supply port 41, which is a lower opening of the fertilization case 135, is positioned below the feeding mechanism 135. The upper case 43 and the lower case 45 are detachably connected via a packing (not shown). In the present embodiment, the hopper 131, the upper case 43, and the lower case 45 are formed of a permeable member.

In this embodiment, the fertilizer unit 100 is configured such that the fertilizer 130 can be separated into an upper assembly 114 and a lower assembly 115 including the feeding mechanism 136 and the hopper 133, and a plurality of the upper assemblies 114 are arranged in rice transplanting. Rotation along the front-rear direction of the rice transplanter machine 1 on the outer side (right side) in the width direction from the outermost (right end) fertilizer 130 located on the outermost side with respect to the second side in the width direction of the machine machine 1 It can be rotated integrally around the moving fulcrum 116.
In the present embodiment, the plurality of (four) upper assemblies 114 are integrated by being fixed integrally with each of the hoppers 131 being connected in the width direction of the rice transplanter machine 1. A side assembly group 118 is formed, and the plurality of lower assemblies 115 are integrally fixed to the fertilizing frame 39 to form an integrated lower assembly group 119.
6 and 7 show a front perspective view and a front view of the vicinity of the fertilizer unit 100 when the upper assembly 114 of the fertilizer unit 100 of the present embodiment is separated. 6 shows a state in which the upper assembly group 118 is rotated from the horizontal position to a predetermined tilt position, and FIG. 7 shows a state in which the upper assembly group 118 is rotated from the horizontal position to the vertical position. Yes. In FIG. 6, the lid member 113 above the hopper 131 is omitted.

In this embodiment, as shown in FIGS. 4 and 5, the rice transplanter machine 1 on the second side (right side) in the width direction of the rice transplanter machine 1 on the side opposite to the side where the fertilizer blower 140 is located. The rotation fulcrum 116 along the front-rear direction is supported by the fertilizer frame 39, and the distal end portion of the right end fertilizer 130 on the outer side in the width direction of the hopper 131 is the rotation fulcrum 116. A pair of front and rear rotation support members 117 that are pivotally supported at both ends of the hopper are provided, and can be rotated around the rotation fulcrum 116 integrally with the plurality of hoppers 131 connected. .
By providing a pivot fulcrum 116 on the side opposite to the fertilizer blower 140, the fertilizer blower 140 is installed so that the fertilizer blower 140 does not interfere when the upper assembly group 118 rotates (when residual fertilizer is discharged). can do.
In the present embodiment, the upper assembly group 114 includes the upper case 43 and the feeding mechanism 136, and the lower assembly 115 includes the lower case 45.

In addition, the fertilizer unit 100 is provided between the fertilizer frame 39 and the front surface of the hopper 131 in the leftmost fertilizer 130 that is located on the outermost side with respect to the first width direction of the rice transplanter machine 1. A holding mechanism (catch clip) 120 is provided, and the upper side assembly 114 and the lower side assembly 115 are held in a connected state.
Accordingly, it is possible to prevent the efficiency of the fertilization work from deteriorating due to the upper assembly 114 and the lower assembly 115 being displaced or detached during the fertilization work (when connected).

According to the fertilizing unit 100 having the above-described configuration, as shown in FIGS. 6 and 7, a plurality of upper portions including the feeding mechanism 136 and the hopper 131 provided in the plurality of fertilizing apparatuses 130 connected and integrated. The side assembly 114 is a rotation fulcrum 116 along the front-rear direction of the rice transplanter machine 1 at the outer side in the width direction from the fertilizer 130 at the right end located on the outermost side with respect to the second side in the width direction of the rice transplanter machine 1. By being integrally rotated around, the plurality of lower assemblies 115 are separated.
In the present embodiment, a grip 121 is provided on the side surface of the hopper 131 in the fertilizer 130 at the left end that is located on the outermost side with respect to the first side in the width direction of the rice transplanter machine 1, and the holding mechanism 120 is In the released state, the upper assembly group 118 is rotated around the rotation fulcrum 116 by grasping the grip 121 and pulling it upward.

In the present embodiment, a locking mechanism 122 that locks the plurality of upper assemblies 114 (upper assembly group 118) around the rotation fulcrum 116 at a predetermined angle is provided.
Specifically, as shown in FIGS. 6 and 7, a locking rod 122 a that is pivotally supported on the front side surface of the predetermined hopper 131 and a width direction of the rice transplanter main machine 1 are disposed. The fertilizer application frame 39 has a plurality of locking hooks 122b provided at predetermined positions along the width direction, and the locking rod 122a is selectively engageable with the plurality of locking hooks 122b. ing.

In this case, the upper assembly group 118 is locked around the rotation fulcrum 116 at a predetermined angle by the locking mechanism 122. The locking angle can be changed by changing the locking hook 122b engaged with the locking rod 122a.
Therefore, when discharging the residual fertilizer, it is not necessary for the operator to hold the upper assembly group 118, and the labor of the operator can be further reduced.

  In this embodiment, the fertilizer accommodation space of the hopper 131 in one fertilizer 130 and the fertilizer accommodation space of the hopper in another fertilizer adjacent to the fertilizer can be distributed as shown in FIG. The hopper 131 in the fertilizer application device 130 at the right end is provided with a fertilizer discharge port 124 that is opened or closed by a cap 123 (see FIG. 2) on the side surface close to the rotation fulcrum 116.

More specifically, as shown in FIGS. 2 and 6, the hopper 131 includes an upper region 131 c in which the upper opening 131 a is closed by a lid member 113, and extends downward from the upper region 131 c, at a lower end portion. The lower region 131d is provided with a lower opening 131b, and has a lower region 131d that is reduced in diameter as it goes downward. In the upper region 131c, the fertilizer housing space of another adjacent hopper 131 is mutually connected A notch 131e through which fertilizer can be distributed is provided.
In addition, the fertilizer discharge port 124 includes a first opening 124a provided in the upper region 131c and a second opening 124b provided in the lower region 131c. The first opening 124a is provided on a side surface (right side surface) facing the second side in the vehicle width direction of the upper region 131c, and the second opening 124b is a side surface facing the second side in the vehicle width direction of the lower region 131d. (Right side).
As shown in FIG. 6, the first and second openings 124a and 124b have fertilizer discharge nozzles 125a and 125b facing outward, respectively, and a cap 123 (second opening 124b is provided inside the fertilizer housing space of the hopper 131. The cap (not shown) has a similar structure), but is detachably attached (see FIG. 2).
By providing the fertilizer discharge nozzles 125a and 125b, the residual fertilizer can be easily discharged, and by attaching the cap 123 from the inside during the fertilization work, the fertilizer can be discharged from the fertilizer discharge nozzles 125a and 125b. Can be prevented, and fertilizer can be used efficiently in fertilization work.

  As described above, since the fertilizer storage space of the hopper 131 in one fertilizer 130 and the fertilizer storage space of the hopper 131 in another adjacent fertilizer 130 can be distributed, the plurality of upper sides When the assembly 114 (upper assembly group 118) is integrally rotated around the rotation fulcrum 116, the other assembly is directed toward the hopper 131 in the fertilizer 130 at the right end located at the lowest position in the rotation. Residual fertilizer flows sequentially from the hopper of the fertilizer application unit 130. At the time of fertilization work, by opening the fertilizer discharge port 124 closed by the cap 123 on the side surface (right side surface) on the side close to the pivot point 116 of the hopper 131 in the fertilizer 130 at the right end, The residual fertilizer that has flowed into the fertilizer application device 130 at the right end is discharged from the fertilizer discharge port 124.

  Here, the fertilizer discharge port 124 is provided in each of the upper region 131c and the lower region 131d of the hopper 131 in the fertilizer 130 at the right end. As shown, residual fertilizer is discharged from the second opening 124b provided in the lower region 131d by integrally rotating the upper assembly group 118 about the rotation fulcrum 116 by a predetermined angle. Thereafter, the upper assembly group 118 is further rotated around the rotation fulcrum 116 to tighten the inclination (for example, substantially vertical as shown in FIG. 7), thereby replacing the second opening 124b. In addition or additionally, residual fertilizer is discharged from the first opening 124a provided in the upper region 131c.

As described above, the upper assembly 114 in which the fertilizer remains in the fertilizer 130 is separated from the lower assembly 115, and along the front-rear direction of the rice transplanter main machine 1 at the outer side in the width direction from the outermost fertilizer 130. Since the plurality of upper assemblies 114 can be integrally tilted and the residual fertilizer can be discharged from the hopper 131 side by integrally rotating around the rotating fulcrum 116, it remains in the vicinity of the feeding mechanism 136. It is possible to remove as much residual fertilizer in the fertilizer application device 130 as possible. In addition, since it is not necessary to attach a discharge hose during the discharge of residual fertilizer, the discharge of residual fertilizer can be performed easily and in a short time.
Further, by providing the fertilizer discharge port 124 in the hopper 131 on the side where the rotation fulcrum 116 is provided in the vehicle width direction, the residual fertilizer in the plurality of fertilizer applicators 130 can be discharged collectively from the fertilizer discharge port 124, The discharge operation of the residual fertilizer can be performed easily and in a short time, and the configuration of the fertilizer application unit 100 can be configured more easily.
Moreover, by providing the fertilizer discharge ports 124 (124a, 124b) having different opening angles, the residual fertilizer is discharged to some extent while the rotation angle is small, and the rotation angle of the lightened upper assembly 114 is reduced. Even if there is a large amount of residual fertilizer and the weight of the upper assembly 114 is heavy by discharging the residual fertilizer in the plurality of fertilizers 130 including the fertilizer remaining in the vicinity of the feeding mechanism 136 to a greater extent, The labor of the worker can be reduced as much as possible.

In the configuration of the present embodiment, the upper assembly 114 is rotated about the rotation fulcrum 116 so that the feeding mechanism 136 can be moved to the feeding mechanism 136 without introducing the conveying air into the hopper 131 from the fertilizer blower 140 or the like. Although the remaining residual fertilizer can be effectively discharged, the introduction of the conveying air enables more effective discharge of the residual fertilizer.
That is, in this embodiment, as shown in FIG. 6, it is close to the rotation fulcrum 116 of the hopper 131 in the fertilizer applying device 130 located on the second outermost side (right end) in the width direction of the rice transplanter machine 1. In addition to the fertilizer discharge port 124 which is the second end opening provided on the side surface of the planting side, the hopper in the fertilizer 130 located on the first outermost side (left end) in the width direction of the rice transplanter machine 1 A first end opening 126 provided in 131 is provided. The first end side opening 126 is provided on a side surface (left side surface) facing the first side in the width direction of the hopper 131 in the fertilizer 130 at the left end. Although not shown, the first end opening 126 can be closed by a cap similar to the cap 123.

In this case, the first end opening 126 is located on the same side in the width direction of the fertilizer blower 140 and the rice transplanter main machine 1 connected to the fertilizer frame 39.
Accordingly, as shown in FIG. 9, the fertilizer blower 140 is connected to the first end opening 126 via the connection pipe 127, whereby the first end opening 126 is transported from the fertilizer blower 140. By using it as a receiving port, the residual fertilizer staying in the feeding mechanism 136 can be effectively discharged by being pumped to the fertilizer outlet 124.
At this time, the fertilizer blower 140 is configured to be detachable from the air pipe 150 by rotating about the rotation shaft 141 along the vertical direction with respect to the fertilizer frame 39. One end of the connection pipe 127 is connected to the conveying air outlet 142 of the fertilizer blower 140 opened by the separation, and the other end of the connection pipe 127 is connected to the first end opening 126. Thus, the conveying air from the fertilizer blower 140 can be introduced into the hopper 131.

  Here, each structure of the said fertilizer application apparatus 100 is demonstrated more concretely. In the upper part of the upper case 43 of the fertilization case 135, a storage part 48 is provided adjacent to the rear of the fertilizer receiving port 44, and a horizontal bearing part 46 through which a horizontal transmission shaft 160 described later passes, And a longitudinal bearing portion 47 through which a feed drive shaft 55 described later passes. The storage portion 48 is internally provided in a state in which a bevel gear 91 attached to the lateral transmission shaft 160 and a bevel gear 75 attached to the upper end portion of the feeding drive shaft 55 are engaged with each other, and the upper opening portion Is sealed with a lid 49 (FIG. 2) made of synthetic resin having elasticity such as rubber.

As shown in FIG. 5, the feed mechanism 136 is operatively connected to the drive source 6, and a feed drive shaft 55 that is driven to rotate about a rotation axis substantially along the vertical direction, and the feed drive shaft 55 are inserted. An upper fixed disc body 51 having a central hole 51a and fixed to the upper case 43 so as to separate the inner space of the upper case 43 in a state in which the inner space of the upper case 43 cannot be rotated around the rotation axis. , And an upper fixed disk body 51 in which an upper slit 54 is vertically penetrated over a predetermined range in the circumferential direction (here, substantially a half circumference), and the rotational axis at a position below the upper fixed disk body 51. A lower fixed disk body 58 fixed to the upper case 43 so as to separate the internal space of the upper case 43 in a state in which the inner case cannot be rotated. The lower fixed disk body 58 has a central hole 58a through which 5 is inserted, and a lower slit 59 that is vertically penetrated at a position different from the upper slit 54 in the circumferential direction with respect to the rotation axis. And a countersink body 56 inserted between the upper and lower fixed disk bodies 51 and 58 in a state of being rotated around the rotation axis by the feeding drive shaft 55, and having a through hole 57 penetrating vertically. The formed eye plate body 56 is provided.
A plurality of passage holes 57 of the eye plate body 56 are provided over the entire circumference along the circumferential direction at a position corresponding to the same rotational radius position as the upper slit 54 extending in the circumferential direction of the upper fixed disk body 51. Yes.

  The feed-out drive shaft 55 has a penetrating portion formed in a rectangular shape in cross section passing through central holes 51 a, 56 a, 58 a in the upper fixed disc body 51, the eye plate 56 and the lower fixed disc body 58. Of these, only the central hole 56a having a rectangular shape in plan view formed in the eye plate body 56 is engaged. As a result, the feeding drive shaft 55 and the eye plate body 56 can rotate integrally with the rotation of the feeding drive shaft 55. Thus, by rotating the eye plate body 56, the fertilizer receiving port 44 of the upper case 43 arrives at the passage hole 57 of the eye plate body 56 through the upper slit 54 of the upper fixed disk body 51. The incoming fertilizer can be moved to the lower slit 59 of the lower fixed disk body 58 and dropped into the lower case 45 in a fixed amount.

  The cleaner mechanism 138 is a cleaner support member 66 fixed to the lower case 45. The cleaner mechanism 138 is provided with a central hole 66a extending vertically on the same axis as the rotation axis, and radially outward of the central hole 66a. A cleaner support member 66 provided with a support surface 66b facing upward, a shaft portion 64a inserted through the central hole 66a so as to be rotatable about a rotation axis, and radially outward from the shaft portion 64a on the upper end side of the shaft portion 64a. A cleaner driving shaft 64 having a flange portion 65 extending in the direction and having an upper end portion detachably connected to a lower end engaging portion 55a at a lower end portion of the feeding drive shaft 55 and being relatively non-rotatable about a rotation axis. A coil spring 67 locked to the support surface 66b and having an upper end locked to the flange 65, and a cleaner member connected to the lower end of the cleaner drive shaft 64 And a 9.

  More specifically, the cleaner support member 66 is attached to two fixed portions 45 a provided so as to face each other inside the upper end portion of the lower case 45. The cleaner member 69 has a generally bowl-like shape that slides on the inner peripheral surface of the lower case 45 as the cleaner drive shaft 64 rotates about its axis. The cleaner drive shaft 64 has an engaged portion 64 a that engages with a lower end engaging portion 55 a of the feed drive shaft 55 at the upper end portion, and is mounted between the fixed portions 45 a in the lower case 45. The cleaner support member 66 is passed through. The cleaner drive shaft 64 is provided with the flange member 65 near the upper end. Further, the cleaner drive shaft 64 is provided with the coil spring 67 that fits on the outer periphery of the cleaner drive shaft 64 between the flange member 65 and the cleaner support member 66, and is attached to the lower case 45. The upper end engaged portion 64 a is engaged with the lower end of the feeding drive shaft 55 by being pressed against the feeding drive shaft 55 through the flange member 65 by the elastic biasing force of the coil spring 67 holding the lower end portion. It is engaged with the portion 55 a and rotates together with the feeding drive shaft 55.

  Further, as described above, the substantially bowl-shaped cleaner member 69 is attached to the lower end portion of the cleaner drive shaft 64. Accordingly, the cleaner member 69 rotates so as to substantially follow the inner peripheral surface of the lower case 45 in conjunction with the rotation of the cleaner drive shaft 64 due to the rotation of the feeding drive shaft 55. The fertilizer adhering to the peripheral surface can be removed, and therefore, the fertilizer clogging can be surely prevented.

In the present embodiment, the upper case 43 and the feeding mechanism 136 in the fertilization case 135 are included in the upper assembly 114, and the lower case 45 and the cleaner mechanism 138 in the fertilization case 135 are included in the lower assembly 115. Accordingly, the portion of the feeding mechanism 136 of the fertilizer application device 130 above the lower fixed disk body 58 is rotated around the rotation fulcrum 116.
Since the residual fertilizer remains at a position above the eye plate body 57 or the lower fixed disk body 58, a portion existing above the lower fixed disk body 58 is defined as an upper assembly 114 and a lower assembly 115. By separating and tilting, residual fertilizer can be effectively discharged.

As shown in FIG. 2, the connecting pipe 133 has an upper opening 133 d in the intermediate region 133 c and is disposed so as to receive the fertilizer from the fertilizer supply port 41. The connection pipe 133 has the air receiving opening 133 a fluidly connected to the air pipe 150, and the fertilizer discharge opening 133 b fluidly connected to the fertilization hose 134.
In the above-described configuration, the conveying wind from the fertilizer blower 140 passes through the air pipe 150 disposed along the width direction of the rice transplanter main machine 1 and enters the connection pipe 133 from the air receiving opening 133a communicated with the air pipe 150. To send. The fertilizer fed out from the feeding mechanism 136 and fed into the connecting pipe 133 from the upper opening 133d of the connecting pipe 133 is pressure-fed from the fertilizer discharge opening 133b by the pressure recording of the conveying air sent into the connecting pipe 133. The fertilizer hose 134 is discharged. In the present embodiment, the connecting pipe 133 is formed integrally with the lower case 45 of the fertilizing case 135.

The upper case 43 in the present embodiment is provided with a plurality of unit clutches 151 that individually engage or block power transmission from the lateral transmission shaft 160 to the feeding drive shaft 55 in the plurality of fertilizer applying apparatuses 100. Yes. A plurality of operation wires 152 for individually operating the plurality of unit clutches 151 are connected to each other, and the plurality of unit clutches 151 can be individually operated manually from the vicinity of the driver seat 21.
In the present embodiment, the bevel gear 91 attached to the lateral transmission shaft 160 is configured to be relatively unrotatable and movable in the axial direction around the lateral transmission shaft 160, and the unit clutch 151 is operated by pulling the operation wire 152. By rotating around the horizontal transmission shaft 160, the bevel gear 91 moves in the axial direction so that the engagement with the bevel gear 75 attached to the pay-out drive shaft 55 can be released.

In this case, by operating the plurality of operation wires 152 individually, the plurality of unit clutches 151 are individually operated, and the power transmission from the lateral transmission shaft 160 to the feeding drive shaft 55 in the plurality of fertilizer application devices 100 is individually performed. Is engaged or disconnected.
Therefore, by operating the plurality of operation wires 152 from the driver's seat 21, the power transmission to the feeding drive shaft 55 in the plurality of fertilizer applying apparatuses 100 can be individually engaged or interrupted.

The plurality of operation wires 152 are arranged so as to be directed to the driver's seat 21 of the rice transplanter machine 1 through the vicinity of the rotation fulcrum 116 in a state where one end portion is operatively connected to the corresponding unit clutch 151. Yes.
As a result, the required length of the operation wire 152 from the unit clutch 151 to the driver's seat 21 hardly changes before and after turning around the turning fulcrum 116 in the upper assembly 114 including the feeding mechanism 136. It is possible to prevent the operation wire 152 from interfering with the rotation around the rotation fulcrum 116.

As described above, in the present embodiment, the fertilizer application unit 100 includes the four fertilizer applicators 130 arranged in parallel in the vehicle width direction.
In each fertilizer application device 130, the lateral transmission shaft 160 and the drive output shaft 110 disposed along the vehicle width direction are operatively connected to transmit the rotational power of the drive source 6.
In FIG. 8, the expansion perspective view in the transmission mechanism vicinity of the fertilization unit 100 which concerns on this embodiment is shown.

Specifically, as shown in FIG. 8, the fertilization unit 100 includes a fertilization driving shaft 99 extending in the vertical direction in a state of being operatively connected to the drive source 6 via the drive output shaft 110, and a lower end portion of the fertilization driving shaft. A vertical transmission shaft 153 that is detachably connected to an upper end portion of the shaft 99 and is not rotatable about an axis, and the horizontal transmission shaft 160 that is operatively connected to the vertical transmission shaft 153 and extends in the width direction of the rice transplanter machine 1. The feeding drive shaft 55 of the feeding mechanism 136 in the plurality of fertilizer applicators 130 is provided with a lateral transmission shaft 160 operatively connected to each other.
In the present embodiment, the vertical transmission shaft 153 and the lateral transmission shaft 160 are provided relative to the bevel gear 154 provided on the vertical transmission shaft 153 so as not to rotate relative to the horizontal transmission shaft 160. The bevel gear 155 is operatively connected by meshing with it. Further, in the present embodiment, the fertilizer driving shaft 99 has a plurality of rotating shafts, and is supported by the rice transplanter main machine 1 so as to be rotatable around each axis in a state where they are operatively connected to each other.

  With the configuration described above, the rotational power from the drive source 6 can be applied to the drive source 6 so that the fertilizer driving shaft 99 and the lower end extending in the vertical direction can be attached to and detached from the upper end of the fertilizer driving shaft 99 and rotate about the axis. It is transmitted to the vertically connected transmission shaft 153 and is transmitted from the vertical transmission shaft 153 to the horizontal transmission shaft 160 extending in the width direction of the rice transplanter machine 1 while being operatively connected to the vertical transmission shaft 153. As described above, since the feed drive shaft 55 in the plurality of fertilizer application apparatuses 100 is operatively connected to the horizontal transmission shaft 160, the feed mechanism 136 is rotated by rotating the feed drive shaft 55. Can do.

  In the present embodiment, the fertilizer unit 100 is coupled to the fertilizer driving shaft 99 (corresponding to the first shaft) positioned below the vertical transmission shaft 153 so as not to rotate relative to the axis and to be movable in the axial direction. 156, a coupling 156 that is directly or indirectly coupled to the vertical transmission shaft 153 (corresponding to the second shaft) so as not to rotate about the axis, and the coupling 156 is positioned above the fertilizer driving shaft 99. A biasing member (here, a coil spring disposed substantially coaxially with the fertilizer driving shaft 99) 157 for biasing toward the vertical transmission shaft 153, and the coupling 156 of the biasing member 157 Power is transmitted from the fertilizer driving shaft 99 to the vertical transmission shaft 153 by pushing in a direction (downward) away from the vertical transmission shaft 153 against the urging force. Blockable are organized.

  Further, the fertilizer application unit 100 is a clutch operating member 159 supported so as to be rotatable about a substantially horizontal pivot shaft 158, and when rotated to one side (downward side) about the pivot shaft 158, A clutch operating member 159 that pushes the coupling 156 downward so as to be separated from the vertical transmission shaft 153 against the urging force of the urging member 157, and a base end portion are coupled to the clutch operating member 159. And a clutch operating arm 163.

  In this embodiment, the fertilizer application unit 100 has a plate member 164 provided substantially parallel to the pivot shaft 158 of the clutch operating member 159 behind the driver's seat 21, and the plate member 164 includes the clutch member 164. A locking mechanism 165 that can lock the free end of the operating arm 163 is provided, and the locking mechanism 165 is arranged in parallel with the rotation direction (vertical direction) of the free end of the clutch operating arm 163. The formed locking positions 165a and 165b are provided. The free end of the clutch operating arm 163 extends forward of the vehicle, and is configured to be selectively engageable with either one of the locking positions 165a and 165b of the locking mechanism 165 of the plate member 164.

With the above configuration, the coupling 156 supported by the fertilizer driving shaft 99 so as not to rotate relative to the axis and to be movable in the axial direction is coupled to the vertical transmission shaft 153 directly or indirectly so as not to be able to rotate about the axis. 99 rotational power is transmitted to the vertical transmission shaft 153. Since the coupling 156 is urged toward the second shaft by the urging member 157, the connection (clutch engagement state) is maintained. At this time, the clutch operating arm 163 is locked to the locking position (clutch engagement position) 165 a of the locking mechanism 165 in the plate member 164.
When the fertilizer driving shaft 99 and the vertical transmission shaft 153 are connected, by manually operating the clutch operating arm 163, the clutch operating member 159 connected to the base end portion of the clutch operating arm 163 is moved to a substantially horizontal pivot shaft. When the clutch actuating member 159 is rotated to one side (downward) around 158, the clutch actuating member 159 pushes the coupling 156 downward against the urging force of the urging member 157 away from the vertical transmission shaft 153. The connection between the fertilizer driving shaft 99 and the vertical transmission shaft 153 is released, and the power transmission is interrupted. At this time, the clutch operating arm 163 is locked to the locking position (clutch disconnection position) 165b of the locking mechanism 165, whereby the clutch disconnected state is maintained.
Therefore, by manually operating the clutch operating arm 163, it is possible to easily perform batch operation of engagement / disconnection of power transmission to the feeding mechanism 136 in the plurality of fertilizer applying apparatuses 100.
Each of the locking positions 165a and 165b has a shape that protrudes in the direction (upward) of the urging force of the urging member 157 generated in the clutch operating arm 163 via the clutch operating member 159. The latching state of the clutch operating arm 163 is maintained at the latching positions 165a and 165b by the biasing force of the biasing member 157.

Here, a plurality of upper assemblies 114 (upper assembly group 118) including the feeding mechanisms 136 and hoppers 131 provided in the plurality of fertilizer applicators 130 together with the upper and lower transmission shafts 153 and the lateral transmission shaft 160. By being integrally rotated about the rotation fulcrum 116, the lower assembly 115 (the lower assembly group 119) is separated. Since the coupling 156 is supported by the fertilizer driving shaft 99, the coupling 156, the clutch operating member 159, and the clutch operating arm 163 all rotate integrally with the upper assembly group 118. do not do.
When the upper assembly group 118 is separated from the lower assembly group 119, the fertilizer driving shaft 99 and the vertical transmission shaft 153 extending in the vertical direction are separated. For this reason, in the transmission path for operating the feeding mechanism 136, the axial direction and the separation direction of the transmission path are substantially the same direction (vertical direction), so the upper assembly group 118 and the lower assembly group 119 are joined. In this case, positional deviation between the fertilizer driving shaft 99 and the vertical transmission shaft 153 can be made difficult to occur, and even if the vertical position is slightly shifted, the fertilizer driving shaft 99 and the vertical transmission shaft 153 come into contact with each other. The displacement in the tangential direction can be allowed to some extent.
Further, when the upper assembly group 118 is separated from the lower assembly group 119, the coupling 156 is separated from the vertical transmission shaft 153 against the urging force of the urging member 157. Then, the upper assembly group 118 is rotated around the rotation fulcrum 116 after the power transmission is interrupted.

Therefore, by using such a coupling 156, when the upper assembly group 118 and the lower assembly group 119 are connected, it is possible to prevent a loss in power transmission to the feeding mechanism 136 in the plurality of fertilizer applicators 130. On the other hand, when the upper assembly group 118 and the lower assembly group 119 are separated, the connection between the fertilizer driving shaft 99 and the upper and lower transmission shafts 153 can be easily released.
Furthermore, since it is not necessary to rotate the clutch operating arm 163, the clutch operating member 159 and the coupling 156 around the rotation fulcrum 116 together with the upper assembly group 118, the clutch operation structure can be further simplified.

  As mentioned above, although the fertilizer application unit 100 in 1st Embodiment which concerns on this invention was demonstrated, this invention is not limited to the said embodiment, A various improvement, change, and correction are possible in the range which does not deviate from the meaning. is there.

For example, in the first embodiment described above, the upper assembly 114 includes the upper case 43 and the feeding mechanism 136, and the lower assembly 115 includes the lower case 45. The entire fertilization case 135 including the lower case 45 may be included, and the lower assembly may include the connection pipe 133.
That is, the fertilizing apparatus 101 having the above-described configuration is separable into an upper assembly 1140 including a fertilizer case 135, a feeding mechanism 136, and a hopper 131 and a lower assembly 1150 including a connecting pipe 133, and a plurality of the upper assemblies 1140 are provided. Is a rotation fulcrum 116 along the front-rear direction of the rice transplanter machine 1 on the outer side in the width direction from the outermost (right end) fertilizer 100 positioned on the outermost side in the width direction of the rice transplanter machine 1 It is possible to rotate integrally.

  FIG. 10 is a rear view of the vicinity of the fertilizer unit 101 when the upper assembly 1140 is separated in the rice transplanter A to which the fertilizer unit 101 according to the second embodiment of the present invention is applied. FIG. 11 is an upper perspective view of the vicinity of the lower assembly 1150 in the state of FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  Also in this embodiment, a plurality of upper assemblies 1140 (upper assembly group 1180) where fertilizer remains in the fertilizer 100 are separated from lower assemblies 1150 (lower assembly group 1190) where no fertilizer remains, The plurality of upper assemblies 1140 are integrally tilted by integrally rotating around the rotation fulcrum 116 along the front-rear direction of the rice transplanter main machine 1 outside in the width direction from the outer fertilizer 100. Since the residual fertilizer can be discharged from the hopper 131 side, the residual fertilizer in the fertilizer application device 100 including the fertilizer remaining in the vicinity of the feeding mechanism 136 can be removed to the maximum extent. In addition, since it is not necessary to attach a discharge hose during the discharge of residual fertilizer, the discharge of residual fertilizer can be performed easily and in a short time.

  In the present embodiment, as a more preferable aspect, as shown in FIG. 11, when the upper assembly 1140 is coupled to the lower assembly 1150 in the upper opening 133 d of the connection pipe 133, An elastic valve structure 166 that allows the lower end portion to enter and that substantially closes the upper opening 133d when the upper assembly 1140 is rotated upward about the rotation fulcrum 116 is provided. ing.

  More specifically, the valve structure 166 has a plurality of base end portions located at the peripheral edge of the upper opening 133d and free end portions extending inward in the radial direction of the upper opening 133d from the base end portion. An elastic piece 166a is provided.

The plurality of elastic pieces 166a of the valve structure 166 take a posture of substantially closing the upper opening 133d under mutual cooperation in a state where no external force is applied.
When the upper assembly 1140 and the lower assembly 1150 are connected, the upper opening 133d of the connection pipe 133 enters the lower end portion of the fertilizing case 135, and both are communicated. As described above, when the lower end portion of the fertilizing case 135 enters the upper opening 133d, the free end portion of the valve structure 166 is elastically deformed so as to move downward in the upper opening 133d. Communication is allowed.
On the other hand, when the upper assembly 1140 rotates around the rotation fulcrum 116 and is separated from the lower assembly 1150, the upper opening 133d of the connecting pipe 133 is formed by the elastic valve structure 166 provided in the upper opening 133d. It is substantially occluded. That is, when the lower end portion of the fertilization case 135 is separated from the upper opening 133 d of the connection pipe 133, the closed posture is restored by its own elasticity in the plurality of elastic pieces 166 a of the valve structure 166.

  Accordingly, the fertilizer can be distributed from the upper assembly 1140 to the lower assembly 1150 when the upper assembly 1140 and the lower assembly 1150 are connected, and the lower assembly is separated when the upper assembly 1140 and the lower assembly 1150 are separated. By closing the upper opening 133d of the connecting pipe 133 of 1150, it is possible to prevent foreign matter from entering from the upper opening 133d during the separation.

In the first embodiment, the upper assembly 114 (upper assembly group 118) is integrally rotated by a rotation fulcrum 116 provided outward in the width direction from the fertilizer 130 at the right end. However, it is also possible to provide a rotation fulcrum at the outer sides in the width direction of the fertilizer application devices 130 at both ends so that the fertilizer can be expanded left and right.
12 and 13, a front perspective view and a rear view of the vicinity of the fertilizer unit 102 when a part of the upper assembly 114 is separated in the rice transplanter A to which the fertilizer unit 102 according to the third embodiment of the present invention is applied. A perspective view is shown.
That is, among the plurality of upper assemblies 114, the upper assemblies 114 located on the first side (left side) in the width direction of the rice transplanter machine are integrally connected to each other to form a first upper assembly group 1181; The remaining upper assemblies 114 are integrally connected to each other to form a second upper assembly group 1182, and the first upper assembly group 1181 is the outermost first side in the width direction of the rice transplanter machine 1. On the first side in the width direction from the first outermost fertilizing device 130L located on the side (left end), and is rotatable about a first rotation fulcrum 1160L along the front-rear direction of the rice transplanter machine 1; The upper assembly group 1182 is a front-rear direction of the rice transplanter machine 1 on the second side in the width direction from the second outermost fertilizer 130R located on the second outermost side (right end) in the width direction of the rice transplanter machine 1. Along And it is rotatable on the second rotation fulcrum 1160R around.

  More specifically, as shown in FIGS. 12 and 13, the first and second rotation fulcrums 1160 </ b> L along the front-rear direction of the rice transplanter machine 1 at the width direction amount end of the rice transplanter machine 1. , 1160R are supported by the fertilization frame 39, and on the outer side in the width direction of the hopper 131 in the first outermost fertilizer 130L, tip portions are respectively provided at both ends of the rotation fulcrum 1160L. A pair of front and rear rotational support members 1171 to be supported are provided, and the distal ends of the second outermost fertilizer application device 130R on the outer side in the width direction of the hopper 131 are on both ends of the rotational fulcrum 1160R. Are provided with a pair of front and rear rotation support members 1172 that are pivotally supported, and a plurality of hoppers in each of the first and second upper assembly groups 1181 and 1182. And it is rotatable integrally with the rotation fulcrum 1160L, the 1160R around in a state where 31 is connected.

According to the fertilizer unit having the above-described configuration, the upper assembly 114 including the feeding mechanism 136 and the hopper 131 provided in the plurality of fertilizer applicators 130 is located on the first side in the width direction of the rice transplanter machine 1. The first upper assembly group 1181 formed by the side assemblies 114 is a rice transplanter on the first side in the width direction from the first outermost fertilizer application device 100L located on the outermost side in the first width direction of the rice transplanter machine 1. By rotating around the first rotation fulcrum 1160L along the front-rear direction of the machine 1, it is separated from the plurality of lower assemblies 115, and the width direction of the rice transplanter machine 1 among the upper assemblies 114 is separated. The second upper assembly group 1182 formed by the upper assembly 114 located on the second side is the second outermost fertilizer located on the second outermost side in the width direction of the rice transplanter machine 1. By being rotated in the second rotation fulcrum 1160R around along the longitudinal direction of the planting machine the machine 1 in the width direction the second side of the location 100R, is separated from the lower side assembly 115.
Also in the present embodiment, it is preferable that the first and second upper assembly groups 1181 and 1182 are each provided with a gripping member similar to the gripping member 121 of the first embodiment.

Here, the lateral transmission shaft 160 includes a first lateral transmission shaft 161 corresponding to the first upper assembly group 1181 and a second lateral transmission shaft 162 corresponding to the second upper assembly group 1182, and The first and second lateral transmission shafts 161 and 162 are connected to each other so as not to rotate relative to each other in a separable state.
That is, when the first and second upper assembly groups 1181 and 1182 are connected to the lower assembly 115, the first and second lateral transmission shafts 161 and 162 are connected to each other so as not to rotate relative to each other. Rotational power from the vertical transmission shaft 153 located on the second upper assembly group 1182 side is transmitted to the feed mechanisms 136 of the first and second upper assembly groups 1181 and 1182. The first and second lateral transmission shafts 161 and 162 are coupled to each other by a coupling supported on either one of the first and second lateral transmission shafts 161 and 162 so as not to rotate relative to the axis and to move in the axial direction. And it is preferable to provide the coupling (not shown) connected to either one of the said 1st and 2nd horizontal transmission shaft directly or indirectly non-rotatably around an axis line.

As described above, the first and second upper assembly groups 1181 and 1182 in which the fertilizer remains in the fertilizer 130 are separated from the lower assembly 115, and the outermost fertilizer application on both sides in the width direction of the rice transplanter machine 1 is performed. A plurality of upper assemblies 114 are integrally rotated around the first and second rotation fulcrums 1160L and 1160R along the front-rear direction of the rice transplanter machine 1 outside the devices 130L and 130R in the width direction. Since the residual fertilizer can be discharged from the hopper 131 side by integrally tilting, the residual fertilizer in the fertilizer application device 130 including the fertilizer remaining in the vicinity of the feeding mechanism 136 can be removed to the maximum. In addition, since it is not necessary to attach a discharge hose during the discharge of residual fertilizer, the discharge of residual fertilizer can be performed easily and in a short time.
In addition, the upper assembly 114 is divided into first and second upper assembly groups 1181 and 1182 and is inclined to both sides in the width direction, thereby providing a fertilizer unit 100 attached to a rice transplanter having a large number of strips. However, the weight can be reduced and the total height of the rice transplanter when the upper assembly 114 is rotated can be kept low.

  In the present embodiment, both the first and second upper assembly groups 1181 and 1182 have a fertilizer storage space of the hopper 131 in one fertilizer 130 and a fertilizer storage space of the hopper in another adjacent fertilizer. The first hopper 131 of the first outermost fertilizing apparatus 130L in the first upper assembly group 1181 has a first cap on the side surface close to the first rotation fulcrum 1160L. A first fertilizer discharge port 1241 that is opened or closed by 1231 is provided, and the hopper 131 of the second outermost fertilizer applying device 130R in the second upper assembly group 1182 is connected to the second rotation fulcrum 1160R. A second fertilizer discharge port 1242 that is opened or closed by the second cap 1232 is provided on the side surface on the adjacent side. It has been.

More specifically, as shown in FIGS. 12 and 13, the hopper 131 includes an upper region 131c in which an upper opening 131a of the hopper 131 is closed by a lid member (not shown), and a lower portion from the upper region 131c. A lower region 131d having a lower opening 131b at the lower end and a lower region 131d having a reduced diameter as it goes downward. In the upper region 131c, the first and second upper regions In each of the side assembly groups 1181 and 1182, a notch 131 e is provided in which the fertilizer housing space of the other adjacent hopper 131 and the fertilizer can be distributed to each other.
The fertilizer discharge ports 1241 and 1242 include first openings 1241a and 1242a provided in the upper region 131c and second openings 1241b and 1242b provided in the lower region 131c. The first openings 1241a and 1242a are provided on a side surface (right side surface) facing the second side in the vehicle width direction of the upper region 131c, and the second openings 1241b and 1242b are second in the vehicle width direction of the lower region 131d. It is provided on the side (right side) facing the side.
The first openings 1241a and 1242a and the second openings 1241b and 1242b have fertilizer discharge nozzles 1251a, 1252a, 1251b, and 1252b, respectively, and the first and second caps are disposed inside the fertilizer housing space of the hopper 131. 1231 and 1232 are detachably attached.

  By providing the fertilizer discharge nozzles 1251a, 1252a, 1251b, and 1252b, it is possible to easily discharge the residual fertilizer, and by applying the first and second caps 1231 and 1232 from the inside during fertilization work, fertilization It is possible to prevent the fertilizer from entering the fertilizer discharge nozzles 1251a, 1252a, 1251b, and 1252b during the work, and to efficiently use the fertilizer in the fertilization work.

As described above, in the first and second upper assembly groups 1181 and 1182, the fertilizer housing space of the hopper 131 in one fertilizer 130 and the fertilizer housing space of the hopper 131 in the other fertilizer 130 adjacent thereto are fertilizer. Since the first and second upper assembly groups 1181 and 1182 are integrally rotated about the first and second rotation fulcrums 1160L and 1160R, the rotation is the most in the rotation. The residual fertilizer sequentially flows from the hoppers of the other fertilizers 130 toward the hopper 131 in the first and second outermost fertilizers 130L and 130R located below. During the fertilization operation, the first and second caps 1231 are disposed on the side surfaces of the first and second outermost fertilizers 130L and 130R on the side close to the first and second rotation fulcrums 1160L and 1160R. , 1232 to open the first and second fertilizer discharge ports 1241, 1242, and thereby the residual fertilizer flowing into the first and second outermost fertilizer application devices 130L, 130R is the first and second fertilizers. It is discharged from the fertilizer discharge ports 1241 and 1242.
Accordingly, the residual fertilizer in each of the first and second upper assembly groups 1181 and 1182 can be collectively discharged from the fertilizer discharge ports 1241 and 1242 provided on one side. Thereby, it is not necessary to attach a discharge pipe to each of the plurality of fertilizer application devices 130, and the discharge operation of the residual fertilizer can be performed more easily and in a short time, and the configuration of the fertilizer unit 102 is more easily configured. can do.
In the present embodiment, in each of the first and second upper assembly groups 1181 and 1182, the fertilizer discharge ports 1241 and 1242 have air blowing ports 1261 and 1262 on the opposite side in the width direction of the rice transplanter main machine 1. As in the first embodiment, the residual fertilizer in the hopper 131 can be pumped from the air blowing ports 1261 and 1262 using the conveying air from the fertilizer blower 140 and the like.

  Further, in the present embodiment, the first upper assembly group 1181 has the first rotation fulcrum 1160L in a state where the fertilizer blower 140 is separated from the air pipe 150 around the rotation shaft 141 along the vertical direction. It can be turned around.

In this case, a fertilizer blower 140 is connected to the first side (left side) in the width direction of the rice transplanter main machine 1 in the fertilizer frame 39 fixed to the rice transplanter main machine 1, and the first upper assembly group 1181 is connected to the fertilizer blower. After 140 is separated from the air pipe 150 around the rotation shaft 141 along the top and bottom, it is rotated about the first rotation fulcrum 1160L to discharge the residual fertilizer.
Therefore, when the first upper assembly group 1181 having the rotation fulcrum 1160L on the same side as the fertilizer blower 140 that discharges fertilizer by wind pressure is rotated, the fertilizer blower 140 is rotated around the rotation shaft 141 along the top and bottom. By rotating around the first rotation fulcrum 1160L after being separated from the air pipe 150, the fertilizer blower 140 can be configured not to be in the way when the residual fertilizer is discharged.
The fertilizer blower 140 may be detached from the fertilizer frame 39 instead of rotating the fertilizer blower 140 about the rotation shaft 141.

  In the above-described three embodiments, the description has been given of the configuration in which the fertilizer housing spaces of the adjacent hoppers 131 are capable of distributing the fertilizer, and the fertilizer discharge port 124 is provided in the hopper 131 of the outermost fertilizer 130. The fertilizer discharge port 124 may not be provided. Even in this case, by rotating the upper assembly 114 around the rotation fulcrum 116, the discharge operation of the residual fertilizer can be performed more easily than in the past.

FIG. 1 is a side view of a rice transplanter to which a fertilization unit according to a first embodiment of the present invention is applied. FIG. 2 is a schematic left side view including a partial cross section near the fertilizer unit of the present embodiment. FIG. 3 is a rear perspective view of the vicinity of the fertilizer unit of the present embodiment. FIG. 4 is a front view of the vicinity of the fertilizer unit of the present embodiment. FIG. 5 is an exploded perspective view of a main part of the fertilizer application apparatus. FIG. 6 is a front perspective view of the vicinity of the fertilizer unit when the upper assembly of the fertilizer unit of the present embodiment is separated. FIG. 7 is a front view of the vicinity of the fertilizer unit when the upper assembly of the fertilizer unit of the present embodiment is separated. FIG. 8 is an enlarged perspective view in the vicinity of the transmission mechanism of the fertilizer application unit according to the present embodiment. FIG. 9 is a rear perspective view of the vicinity of the fertilizer unit when the upper assembly of the fertilizer unit of the present embodiment is separated. FIG. 10 is a rear view of the vicinity of the fertilizer unit when the upper assembly is separated in the rice transplanter to which the fertilizer unit according to the second embodiment of the present invention is applied. FIG. 11 is an upper perspective view of the vicinity of the lower assembly in the state of FIG. FIG. 12 is a front perspective view of the vicinity of the fertilizer unit when a part of the upper assembly is separated in the rice transplanter to which the fertilizer unit according to the third embodiment of the present invention is applied. FIG. 13 is a rear perspective view of the vicinity of the fertilizer unit when a part of the upper assembly is separated in the rice transplanter to which the fertilizer unit according to the third embodiment of the present invention is applied.

Explanation of symbols

1 Rice transplanter machine 39 Fertilizer application frame 100, 101, 102 Fertilizer application unit 112 Air piping opening 114 Upper assembly 115 Lower assembly 119 Rotating fulcrum 120 Locking mechanism 123 Cap 124 Fertilizer discharge port 124a First opening 124b Second opening 130 Fertilizer 131 Hopper 131c Upper area 131d Lower area 133 Connecting pipe 133a Air receiving opening 133b Fertilizer discharge opening 133d Upper opening 135 in connecting pipe Fertilization case 136 Feeding mechanism 140 Fertilizer blower 163 Clutch operating arm 166 Valve structure

Claims (5)

Each of the fertilizer case includes a fertilizer case, a feeding mechanism accommodated in the fertilizer case, and a plurality of fertilizers having a hopper placed on the upper surface of the fertilizer case, wherein the plurality of fertilizers is a width of the rice transplanter machine. It is a fertilizer unit attached to the rice transplanter main machine along the direction,
A fertilizer frame fixed to the rice transplanter main machine, a fertilizer blower connected to the first side in the width direction of the rice transplanter main machine in the fertilizer frame, and an air pipe disposed along the width direction of the rice transplanter main machine And having an opening for receiving the conveying air from the fertilizer blower on one end side and an air pipe closed on the other end side,
The fertilizer application device uses an upper opening connected to a lower opening of the fertilization case, an air receiving opening communicated with the air pipe, and a conveying wind supplied via the air receiving opening through the upper opening. A connection pipe having a fertilizer discharge opening for discharging fertilizer supplied
The fertilizer is separable into an upper assembly including the fertilization case, the feeding mechanism and the hopper, and a lower assembly including the connection pipe.
The plurality of upper side assemblies are arranged around a pivotal fulcrum along the front-rear direction of the rice transplanter machine at the outer side in the width direction from the outermost fertilizer located on the outermost side in the width direction of the rice transplanter machine. A fertilizing unit characterized in that it can rotate integrally.   The upper opening of the connection pipe allows the lower end portion of the fertilizer case to enter when the upper assembly is connected to the lower assembly, and the upper assembly is moved around the rotation fulcrum. 2. The fertilizer application unit according to claim 1, further comprising an elastic valve structure that substantially closes the upper opening when rotated upward. The fertilizer storage space of the hopper in one fertilizer and the fertilizer storage space of the hopper in another fertilizer adjacent to the fertilizer can be distributed as a fertilizer.
The hopper in the outermost fertilizer application device is provided with a fertilizer discharge port that is opened or closed by a cap on a side surface close to the rotation fulcrum. The described fertilizer unit. The hopper is an upper region whose upper portion is an opening that is closed by a lid member, and a lower region that extends downward from the upper region and is provided with a lower opening at a lower end portion. A lower region, and fertilizer can be distributed to the fertilizer housing space of another hopper adjacent in the upper region,
The fertilizer discharge unit according to claim 3, wherein the fertilizer discharge port includes a first opening provided in the upper region and a second opening provided in the lower region.   The fertilizer unit according to any one of claims 1 to 4, further comprising a locking mechanism that locks the upper assembly around the rotation fulcrum at a predetermined angle.