JP2019024382A - Seedling transplanter with fertilization device - Google Patents

Abstract

An object of the present invention is to prevent a fertilizer storage hopper and its upper lid from being damaged by a raising operation of a seedling planting part in a seedling transplanter with a fertilizer application apparatus. In a seedling transplanter with a fertilizer device, a fertilizer device 70 is mounted on the rear portion of a control seat 28, and a seedling planting portion 50 is provided at a rear portion of a traveling vehicle body 2 so as to be lifted and lowered by a seedling planting portion lifting mechanism 40. A seedling transplanter with a fertilizer application device is provided, which locks the seedling planting part lifting mechanism 40 of the seedling planting part 50 in conjunction with the backward rotation operation of the fertilizer storage hoppers 71 and 72 of the fertilizer application apparatus 70. [Selection] Figure 1

Description

  The present invention relates to a seedling transplanter with a fertilizer application device that performs fertilization work simultaneously with seedling transplantation work.

  A seedling transplanter with a fertilizer application device is described in Patent Document 1 below.

  In this seedling transplanter with a fertilizer application device, a fertilizer is provided at the rear part of the control seat on the traveling vehicle body, a seedling planting part is provided at the rearmost part, and the seedling planting part moves up and down relative to the traveling vehicle body.

JP, 2006-67303, A

  Since the fertilizer storage hopper of the fertilizer application device is provided at the rear part of the control seat, the seedling transplanter with fertilizer application device raises the seedling planting part by mistake during maintenance work performed by tilting the fertilizer storage hopper backward, The fertilizer storage hopper and its lid hit the seedling planting part and are damaged.

  An object of the present invention is to prevent the fertilizer storage hopper and its upper lid from being damaged by the raising operation of the seedling planting part in the seedling transplanting machine with a fertilizer application device.

  The problems of the present invention are solved by the following technical means.

  According to the first aspect of the present invention, a fertilizer application device 70 is mounted on the rear portion of the control seat 28, and a seedling transplanter with a fertilizer device is provided on the rear portion of the traveling vehicle body 2 so that the seedling planting portion 50 can be moved up and down by the seedling planting portion lifting mechanism 40. A seedling transplanter with a fertilizer application device, wherein the seedling planting part lifting mechanism 40 of the seedling planting part 50 is locked in conjunction with a backward rotation operation of the fertilizer storage hoppers 71 and 72 of the fertilizer application apparatus 70, To do.

  The invention according to claim 2 is the seedling transplanter with a fertilizer application device according to claim 1, wherein the raising / lowering operation of the seedling planting unit 50 is invalidated when the seedling planting unit lifting mechanism 40 is locked.

  According to the third aspect of the present invention, the fertilizer storage hoppers 71 and 72 are pivotally supported by the rotation shafts 71 c and 72 c with respect to the hopper support base 80 provided in the traveling vehicle body 2, and the fertilizer storage hoppers 71 and 72 are rotated backward. The seedling transplanter with a fertilizer application device according to claim 1, wherein the seedling planting part lifting mechanism 40 is locked by the interlocking wire 35 that is pulled along with the fertilizer application device.

  The invention of claim 4 is characterized in that the seedling planting part 50 is separated from the fertilizer storage hoppers 71 and 72 when the seedling planting part lifting mechanism 40 is locked, and the seedling planting part 50 is returned to the working position by unlocking. The seedling transplanter with a fertilizer application device according to any one of claims 1 to 3.

  In the invention of claim 1, in the seedling transplanter with a fertilizer application device capable of raising and lowering the seedling planting part 50 by the seedling planting part lifting mechanism 40 at the rear part of the fertilizer application apparatus 70, the fertilizer storage hoppers 71 and 72 of the fertilizer application apparatus 70 are provided. There is a possibility that the seedling planting part 50 that moves up and down when hitting the rear is hit, but when the fertilizer storage hoppers 71 and 72 are operated backward, the seedling planting part lifting mechanism 40 is locked and the seedling planting part 50 is locked. Since it does not go up and down, the fertilizer storage hoppers 71 and 72 and the seedling planting part 50 do not hit, and it is safe.

  In the invention of claim 2, in addition to the effect of claim 1, when the seedling planting part raising / lowering mechanism 40 is locked, the seedling planting part 50 does not move even if the seedling planting part 50 is lifted and lowered. It is.

  In the invention of claim 3, in addition to the effect of claim 1 or claim 2, when the fertilizer storage hoppers 71 and 72 are rotated rearward, the interlocking wire 35 acts and the seedling planting part lifting mechanism 40 is reliably secured. Safe to lock.

  In the invention of claim 4, in addition to the effect of any one of claims 1 to 3, the seedling planting part 50 is separated from the fertilizer storage hoppers 71 and 72 when the seedling planting part lifting mechanism 40 is locked. Without interference, when the lock is released, the seedling planting unit 50 returns to the working position, and the transplanting operation can be started immediately.

It is a right view of a seedling transplanter with a fertilizer application device. It is a top view of a seedling transplanter with a fertilizer applicator. It is the rear view which looked at the fertilizer application of the seedling transplanter with a fertilizer applicator from the back side. It is an expansion right view when the fertilizer storage hopper of a fertilizer application is made into a discharge posture. It is a figure which shows the state which opened the cover part at the time of the discharge attitude | position of a fertilizer storage hopper. It is a figure which shows the structure of the fertilization transmission apparatus of a fertilizer application apparatus. It is a partially expanded right view of a fertilization transmission structure. It is a perspective view of a hopper support stand. It is a perspective view of a manure storage hopper attachment stay. It is sectional drawing of an implantation ridge case.

  Hereinafter, an embodiment of a seedling transplanting machine according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  FIG. 1 is a right side view showing a seedling transplanter with a fertilizer application apparatus. FIG. 2 is a plan view of a seedling transplanter with a fertilizer application apparatus. In the following description, the forward direction of the seedling transplanter 1-1 is the front side (left side in FIGS. 1 and 2), and the direction opposite to the forward direction is the rear side (right side in FIGS. 1 and 2). The direction perpendicular to the left-right direction with respect to the longitudinal direction of the body of the seedling transplanter 1-1 is defined as the lateral direction of the body (vehicle width direction in FIG. 2), and perpendicular to the longitudinal direction of the body of the seedling transplanter 1-1. The direction to do is the vertical direction.

  The traveling vehicle body 2 of the seedling transplanter 1-1 has a pair of left and right front wheels 4 and a pair of left and right rear wheels 5 as well, and a four-wheel drive vehicle that is driven by the front wheels 4 and the rear wheels 5 when traveling. It is said. Thereby, the traveling vehicle body 2 can travel on a farm field or a road. In addition, a seedling planting section 50 that can be moved up and down by a seedling planting section lifting mechanism 40 is provided at the rear of the traveling vehicle body 2.

  The traveling vehicle body 2 includes a main frame 7 disposed substantially at the center of the vehicle body, an engine 10 mounted on the main frame 7, a driving force of the engine 10 for front wheels 4, rear wheels 5, and a seedling planting portion. And a power transmission device 15 for transmitting to the power transmission device 50. That is, in this seedling transplanter 1-1, the power generated by the engine 10 as a power source is used not only for moving the traveling vehicle body 2 forward or backward, but also for driving the seedling planting unit 50. Is done.

  Further, the engine 10 is disposed at a substantially center in the left-right direction of the traveling vehicle body 2 and in a state of protruding upward from a floor step 26 on which an operator puts his / her foot when getting on. As the engine 10, for example, a heat engine such as a diesel engine or a gasoline engine is used. In addition, the floor step 26 is provided between the front part of the traveling vehicle body 2 and the rear part of the engine 10 and is mounted on the main frame 7. The mud can be dropped on the field. A rear step 27 that also serves as a fender for the rear wheel 5 is provided behind the floor step 26. The rear step 27 has an inclined surface (back-up inclined surface) that is inclined upward as it goes rearward, and is disposed on each of the left and right sides of the engine 10.

  The engine 10 protrudes upward from the floor step 26 and the rear step 27, and an engine cover 11 that covers the engine 10 is disposed in a portion protruding from these steps. That is, the engine cover 11 covers the engine 10 in a state of protruding upward from the floor step 26 and the rear step 27.

  In the traveling vehicle body 2, a control seat 28 is installed on the upper portion of the engine cover 11, and a control unit 30 is disposed in front of the control seat 28 and in the front center of the traveling vehicle body 2. Yes. The control unit 30 is arranged in a state of protruding upward from the floor surface of the floor step 26 and divides the front side of the floor step 26 into left and right.

  A front cover 31 that can be opened and closed is provided at the front of the control unit 30. In addition, a shift lever and the like for operating the operating device, instruments, a planting part lifting lever for raising and lowering the seedling planting part 50, a handle 32, and the like are disposed on the upper part of the control unit 30. The handle 32 is provided as a steering member that steers the traveling vehicle body 2 by an operator steering the front wheel 4, and can steer the front wheel 4 via an operation device or the like in the control unit 30. It has become.

  In addition, on the portions of the floor step 26 located on the left and right sides of the control unit 30, a spare seedling stage 65 on which a replenishment seedling is placed is arranged. The preliminary seedling stage 65 is rotatably supported by a support shaft 66 protruding from the floor surface of the floor step 26, and can be rotated by an operator's hand or a rotating member such as an electric motor. It has become.

  The power transmission device 15 includes a hydraulic continuously variable transmission 16 that is a transmission for shifting the driving force transmitted from the engine 10, and a belt type that transmits power from the engine 10 to the hydraulic continuously variable transmission 16. And a power transmission mechanism 17. Among these, the hydraulic continuously variable transmission 16 is configured as a hydrostatic continuously variable transmission called HST (HydroStatic Transmission). Thereby, the hydraulic continuously variable transmission 16 generates hydraulic pressure by the hydraulic pump driven by the power from the engine 10, and converts the hydraulic pressure into mechanical force (rotational force) by the hydraulic motor and outputs it. Thereby, the hydraulic continuously variable transmission 16 converts the power generated by the engine 10 into a force for driving the front wheels 4 and the rear wheels 5.

  At that time, the hydraulic continuously variable transmission 16 can change the forward and backward travel and the traveling speed of the traveling vehicle body 2 by changing the direction and the rotational speed of the rotational force. Is omitted) by changing the output and output direction of the hydraulic continuously variable transmission 16, it is possible to operate the forward and backward travel and the traveling speed of the traveling vehicle body 2.

  The hydraulic continuously variable transmission 16 is disposed in front of the engine 10 and below the floor surface of the floor step 26. In the seedling transplanter 1-1, the engine 10 Is placed in front of.

  The belt-type power transmission mechanism 17 includes a pulley attached to the output shaft of the engine 10, a pulley attached to the input shaft of the hydraulic continuously variable transmission 16, a belt wound around both pulleys, A tension pulley for adjusting the tension of the belt. As a result, the belt-type power transmission mechanism 17 can transmit the power generated by the engine 10 to the hydraulic continuously variable transmission 16 via the belt.

  Further, the power transmission device 15 is transmitted to the hydraulic continuously variable transmission 16 via the belt-type power transmission mechanism 17 and transmits the driving force from the engine 10 shifted by the hydraulic continuously variable transmission 16 to each part. It has a mission case 18 as a device. The transmission case 18 has a sub-transmission mechanism (not shown) for switching the working speed of the traveling vehicle body 2 when traveling on the road or planting, and is attached to the front portion of the main frame 7. The auxiliary transmission lever (not shown) can switch the traveling speed of the traveling vehicle body 2 by operating the auxiliary transmission mechanism in the mission case 18. The transmission case 18 shifts the output from the engine 10 transmitted via the belt-type power transmission mechanism 17 and the hydraulic continuously variable transmission 16 by the auxiliary transmission mechanism in the transmission case 18, and The power can be output separately for the driving power to the rear wheel 5 and the driving power to the seedling planting section 50.

  Among these, a part of the driving power can be transmitted to the front wheel 4 via the left and right front wheel final cases 21, and the rest can be transmitted to the rear wheel 5 via the left and right rear wheel gear cases 22. ing. The left and right front wheel final cases 21 are disposed on the left and right sides of the mission case 18, respectively. The left and right front wheels 4 are connected to the left and right front wheel final cases 21 via axles. Further, the front wheel final case 21 is driven in accordance with the steering operation of the handle 32 and can steer the front wheel 4. Similarly, the rear wheel 5 is connected to the left and right rear wheel gear cases 22 via axles. On the other hand, the driving power is transmitted to a planting clutch (not shown) provided at the rear portion of the traveling vehicle body 2, and is transmitted to the seedling planting unit 50 by a planting transmission shaft (not shown) when the planting clutch is engaged. Is done.

  The seedling planting part lifting mechanism 40 for raising and lowering the seedling planting part 50 provided at the rear part of the traveling vehicle body 2 has a lifting link device 41, and the seedling planting unit 50 uses the lifting link device 41. It is attached to the traveling vehicle body 2 via. The lifting link device 41 includes a parallel link mechanism 42 that connects the rear portion of the traveling vehicle body 2 and the seedling planting portion 50. The parallel link mechanism 42 has an upper link and a lower link, and these links are rotatably connected to a rear-view portal-type link base frame 43 erected at the rear end of the main frame 7. The other end side of each link is rotatably connected to the seedling planting part 50, so that the seedling planting part 50 is connected to the traveling vehicle body 2 so as to be movable up and down.

  The seedling planting part lifting mechanism 40 has a hydraulic lifting cylinder 44 that expands and contracts by hydraulic pressure, and the seedling planting part 50 can be lifted and lowered by the expansion and contraction operation of the hydraulic lifting cylinder 44. The seedling planting part raising / lowering mechanism 40 can raise the seedling planting part 50 to the non-working position or lower it to the ground work position (ground planting position) by the raising / lowering operation.

  In addition, the seedling planting unit 50 can plant a seedling in a plurality of sections or a plurality of rows. In the seedling transplanter 1-1, so-called four-row planting is performed in which seedlings are planted in four sections. It is the seedling planting part 50. The seedling planting unit 50 includes a seedling planting device 60, a seedling placement table 51, and a float 45. Among these, the seedling mounting base 51 is provided as a seedling mounting member for loading a plurality of seedlings on the rear part of the traveling vehicle body 2, and the seedling mounting bases for the number of planting strips partitioned in the left-right direction of the traveling vehicle body 2. It has a surface 52, and a mat-like seedling with soil can be placed on each seedling placement surface 52. Thereby, every time the seedling placed on the seedling placing stand 51 is planted and lost, it is not necessary to replenish the mat-like seedling from the spare seedling placing stand 65 and return to recovering the seedling prepared outside the field, Since continuous work can be performed, work efficiency is improved.

  The seedling planting device 60 is disposed below the seedling placement table 51 and is supported by a planting support frame 53 disposed on the front side of the seedling placement table 51. This seedling planting device 60 is a device for scraping a predetermined amount of seedlings from the mat-like seedlings placed on the seedling placing table 51 and planting them in a farm field. And an attached transmission shaft (not shown). Among these, the planting basket 61 is configured so that seedlings can be taken from the seedling mounting table 51 and planted in the field, and the planting transmission case 64 can supply driving force to the planting basket 61. It is possible.

  Specifically, the planting transmission case 64 is configured to be able to supply the power transmitted from the engine 10 to the seedling planting unit 50 to the planting basket 61. The planting basket 61 is connected to the planting transmission case 64. It is connected to be rotatable. In addition, the planting basket 61 is rotatably connected to a planting basket 62 for planting seedlings from the seedling mounting table 51 and planting them in the field, and the planting basket 62 rotatably. And a rotary case 63. The rotary case 63 includes an inconstant speed transmission mechanism (not shown) that can be rotated while changing the rotation speed when the implantation rod 62 is rotated by the driving force transmitted from the planting transmission case 64. ing. Thereby, at the time of rotation of the plantation basket 61, the plantation basket 62 can rotate, changing a rotational speed with the rotation angle with respect to the rotary case 63.

  FIG. 10 shows an extrusion spring 55 that pushes and biases an extrusion fork that slides the implantation rods 61 and 62, and pushes and pushes the extrusion fork nut 54 of the extrusion fork inside the resin implantation rod case 56. It is fitted into the internal bulging portion 56 a of the implantation rod case 56 and interposed between the extrusion fork nut 54. Even if the extrusion fork nut 54 is widened and compressed with the winding pitch of the extrusion spring 55, the grease moves from the gap. A taper screw 57a of the grease nipple 57 is tightened in the hole of the internal bulging portion 56a.

  The seedling planting device 60 configured as described above is arranged for every two strips, that is, each of the plurality of seedling planting devices 60 is assigned a planting strip. In addition, each planting transmission case 64 is rotatably provided with two planting bushes 61. That is, two planting transmission cases 64 are provided with two rotary cases 63 on both sides in the lateral direction of the body. It is connected to. The seedling planting device 60 of the present seedling transplanter 1-1 includes two planting transmission cases 64, and thus includes four ridges 61.

  In addition, the float 45 slides on the farm scene as the traveling vehicle body 2 moves, and the ground is leveled. The float 45 is located on the center side of the seedling planting portion 50 in the left-right direction of the traveling vehicle body 2, And side floats 47 located on both sides of the seedling planting part 50 in the direction.

  Further, a leveling rotor 67 for leveling the agricultural field is provided on the front side of the lower position of the seedling planting unit 50. The leveling rotor 67 is configured to be rotatable by power from the engine 10 transmitted through the rear wheel gear case 22.

  A plurality of seedling planting devices 60 included in the seedling planting unit 50 support a planting transmission case 64 and a seedling planting basket (not shown) configured to transmit a driving force to the seedling planting device 60. Is provided. The seedling planting basket 62 is supported by the planting support frame 53, whereby the plurality of planting transmission cases 64 included in the seedling planting device 60 are mounted on the planting support frame 53. The seedling planting basket 62 is configured so that the driving force generated by the engine 10 can be transmitted from the mission case 18 to the seedling planting device 60. The plurality of planting transmission cases 64 rotate the planting basket 61 by the transmitted driving force.

  Further, a fertilizer application device 70 for supplying fertilizer to the farm field is mounted behind the control seat 28 in the traveling vehicle body 2. The fertilizer application device 70 is supplied from lid portions 73 and 74 that are supported by a fertilizer storage hoppers 71 and 72 in which fertilizer is stored so as to be pivotable in the longitudinal direction of the machine body and that can be opened and closed, and the fertilizer storage hoppers 71 and 72. A fertilizer hose (not shown) for transporting the fertilizer to the seedling planting part 50 side and feeding fertilizer to the seedling planting part 50 side by supplying transport air to the fertilizer hose. And a blower 77 (see FIG. 3), which is a wind device.

  FIG. 3 is a rear view of the fertilizer application of the seedling transplanter shown in FIG. FIG. 4 is a side view of the seedling transplanter shown in FIG. The fertilizer storage hoppers 71 and 72 have a substantially rectangular parallelepiped outer shape that is long in the left-right direction of the machine body in the storage posture, and have openings 71a and 72a on the upper side. The fertilizer storage hoppers 71 and 72 are divided into left and right parts in the horizontal direction of the machine body in the storage posture, and two funnel portions 71b and 72b are formed below the respective fertilizer storage hoppers 71 and 72. In each of the funnel portions 71b and 72b, supply ports 71d and 72d (see FIG. 2) are opened downward when the fertilizer storage hoppers 71 and 72 are in the storage posture. In the storage posture of the fertilizer storage hoppers 71 and 72, shutters 75 (see FIGS. 1 and 4) capable of opening and closing the supply ports 71d and 72d are disposed below the plurality of funnel portions 71b and 72b. Yes. The shutter 75 is configured to be able to open and close the supply ports 71d and 72d, for example, manually by an operator. Thereby, the supply of fertilizer from the fertilizer storage hoppers 71 and 72 can be stopped by closing the supply ports 71 d and 72 d by the shutter 75.

  Further, the fertilizer storage hoppers 71 and 72 have rotating shafts 71c and 72c whose axial direction is parallel to the left and right direction of the machine body on the rear side of the machine body in the longitudinal direction below the funnel parts 71b and 72b in the storage posture. It is supported around the pivot shafts 71c and 72c so as to be pivotable in the longitudinal direction of the machine body. The fertilizer storage hoppers 71 and 72 are supported to be switchable between a storage posture capable of storing fertilizer and a discharge posture capable of discharging fertilizer. The fertilizer storage hoppers 71 and 72 are in a storage posture when rotated around the pivot shafts 71c and 72c in the front-rear direction of the machine body, and are discharged when rotated around the pivot shafts 71c and 72c in the front-rear direction of the machine body. It becomes. (Refer to FIG. 4) The fertilizer storage hoppers 71 and 72 are rotatable within a range (for example, a range of about 90 degrees) where the seedling planting part 50 does not interfere at the planting position (see FIG. 1). . Here, the storage posture of the fertilizer storage hoppers 71 and 72 is a posture in which the openings 71a and 72a are positioned on the upper side and the supply ports 71d and 72d are positioned on the lower side, as shown in FIG. 1 and FIG. Further, the discharge posture of the fertilizer storage hoppers 71 and 72 is a posture in which the supply ports 71d and 72d (see FIG. 3) are located in the front in the longitudinal direction of the machine body and the openings 71a and 72a are located in the rear in the longitudinal direction of the machine body. This is the posture shown in FIG.

  FIG. 8 shows a hopper support base 80 for supporting the fertilizer storage hoppers 71 and 72 on the traveling vehicle body 2, and the fertilizer storage hopper mounting stay 81 shown in FIG. 9 is used as a support shaft portion 81 a for the support shaft portion 80 a of the hopper support base 80. In addition, it is pivotally supported by the rotation shafts 71c and 72c, and a patchon lock 82 provided on the front side of the hopper support base 80 is hung on the engaging portion 81b of the fertilizer storage hopper mounting stay 81 and fixed in the storage posture. That is, when the left and right fertilizer storage hoppers 71 and 72 are closed in the storage posture and the patchon lock 82 is closed, the rotation around the rotation shafts 71c and 72c is restricted, and is fixed in the storage posture. Further, when the patchon lock 82 is opened in the storage posture, it can be freely rotated around the rotation shafts 71c and 72c, and can be switched to the discharge posture by rotating around the rotation shafts 71c and 72c. Thereby, it is possible to switch between the storage posture and the discharge posture of the fertilizer storage hoppers 71 and 72 by a simple operation of opening and closing the fixing means such as the patch lock 82.

  Further, the inner wire 35a of the interlocking wire 35 connected to the hydraulic valve that operates the hydraulic lifting cylinder 44 of the seedling raising / lowering mechanism 40 is attached to the wire attachment hole 81c of the fertilizer storage hopper attachment stay 81, and the outer wire of the interlocking wire 35 When 35b is attached to the wire receiver 80b of the hopper support base 80 and the fertilizer storage hoppers 71 and 72 are set in the discharging posture, the inner wire 35a of the interlocking wire 35 is pulled beyond the dead point, and the hydraulic valve of the hydraulic lifting cylinder 44 is locked. Will not move up and down. This lock of the hydraulic valve invalidates the operation of the lifting lever that lifts and lowers the seedling planting section 50 provided in the control section 30, and the seedling planting section 50 even if the lifting lever is accidentally operated. Does not move.

  In addition, the hydraulic valve of the hydraulic lifting cylinder 44 is arranged so that the seedling planting part 50 is separated from the fertilizer storage hoppers 71 and 72 when the seedling planting part lifting mechanism 40 is locked, and the seedling planting part 50 is returned to the working position when the lock is released. By controlling, transplantation can be started immediately after maintenance work.

  If a lock sensor for detecting unlocking of the patch lock 82 is provided and an alarm is sounded when the lock sensor detects the release when the fertilizer sensors of the fertilizer storage hoppers 71 and 72 detect the residual, the fertilizer storage Failure to discharge fertilizer with the hoppers 71 and 72 in the discharging posture can be prevented.

  In addition, when the lock sensor detects the unlocking of the patch lock 82, when the planting lever is moved from the neutral position to the planting position, or when the rotation sensor of the rear wheel 5 detects the rotation, an alarm that sounds differently is sounded. This makes it easier to determine where the defect is.

  In addition, when the potentiometer provided in the lifting / lowering link device 41 detects the lift of the seedling planting unit 50 in a state where the lock sensor detects the unlocking of the patch lock 82, the alarm is continuously sounded until it becomes lower than a predetermined value. Care can be taken so that the portion 50 does not hit the lid portions 73 and 74.

  Further, when the shutter 75 of the fertilizer feeding device 76 is opened while the lock sensor is in the unlocked state of the patch lock 82, the rotation of the blower 77 can be reduced to prevent the fertilizer from being blown out.

  Lids 73 and 74 that cover the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 are arranged to be openable and closable on the upper portions of the left and right fertilizer storage hoppers 71 and 72 in the storage posture. The lid portions 73 and 74 have rotation shafts 71e and 72e whose axial direction is parallel to the left and right direction of the machine body on the rear side in the machine body longitudinal direction above the fertilizer storage hoppers 71 and 72 in the storage posture. The shafts 71e and 72e are supported so as to be rotatable in the longitudinal direction of the body. The lid parts 73 and 74 open and close the openings 71a and 72a by rotating in the longitudinal direction of the machine body. Specifically, when the lid portions 73 and 74 are rotated backward, the openings 71a and 72a are opened, and when the lid portions 73 and 74 are rotated forward, the openings 71a and 72a are covered. Moreover, since the cover parts 73 and 74 are rotatably supported around the rotation shafts 71e and 72e located on the opposite side to the control seat 28 in the storage posture of the fertilizer storage hoppers 71 and 72, The lids 73 and 74 can be opened and closed from the seat 28 side. Thereby, since the lid parts 73 and 74 can be opened with respect to the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the storage posture, it becomes easy to put the fertilizer into the fertilizer storage hoppers 71 and 72 from the control seat 28 side. Work efficiency is improved.

  Moreover, the cover parts 73 and 74 have fixing means such as a so-called patchon lock 82, and the opening 71a and 72a are closed by the fixing means in the storage posture and the discharge posture of the fertilizer storage hoppers 71 and 72. It can be fixed with. Specifically, when the patch 73 is closed, the lid portions 73 and 74 are in a state in which the rotation around the rotation shafts 71e and 72e is restricted while covering the openings 71a and 72a. It is fixed in the state. Further, when the patchon lock 82 is opened with the openings 71a and 72a covered, the rotation is possible around the rotation shafts 71e and 72e, and the lid portions 73 and 74 are rotated around the rotation shafts 71e and 72e. Thus, the openings 71a and 72a can be opened. Thereby, the opening 71a, 72a can be open | released by simple operation of opening fixing means, such as a Patchon lock, at the discharge posture of the fertilizer storage hoppers 71,72.

  Moreover, the cover parts 73 and 74 are formed in the circular arc shape which protrudes upwards by the body left-right direction view in the state which covered opening 71a, 72a of the fertilizer storage hopper 71,72 in a storage attitude | position. The lid portions 73 and 74 in the first embodiment are in a state in which the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the discharging posture are opened (the state shown in FIG. 4), and the airframe inner side end portions 73e and 74e in the left-right direction of the airframe. Is formed in the shape of a bowl whose depth in the vertical direction becomes deeper toward the outer side edge portions 73f and 74f from the body. The lid portions 73 and 74 are formed in an arc shape so as not to interfere with the seedling planting portion 50 (see FIG. 1) when the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the discharging posture are opened. Yes. Here, airframe inner side end portions 73e and 74e in the lid portions 73 and 74 are ends located on the center side of the traveling vehicle body 2 in the left and right direction of the airframe among the end portions of the lid portions 73 and 74 in the left and right direction of the airframe. . Airframe outer end portions 73f and 74f of the lid portions 73 and 74 are end portions of the lid portions 73 and 74 that are located outside the traveling vehicle body 2 in the left and right direction of the vehicle body.

  Moreover, when the openings 73a and 72a of the fertilizer storage hoppers 71 and 72 in the discharging posture are opened, the lid parts 73 and 74 receive the fertilizer from the fertilizer storage hoppers 71 and 72 through the openings 71a and 72a. , 74a.

  The receiving portions 73a and 74a are formed inside the lid portions 73 and 74, and the lid portions 73 and 74 cover the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the storage posture. It is formed in an arc shape that protrudes upward. The receiving portions 73a and 74a open upward in a state where the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the discharging posture are opened, and as they go from the body inner end portions 73e and 74e to the body outer end portions 73f and 74f. , Get deeper in the vertical direction. The receiving portions 73a and 74a have a depth to receive the fertilizer in the fertilizer storage hoppers 71 and 72 when the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the discharging posture are opened.

  Moreover, the cover parts 73 and 74 have the discharge | emission cover parts 73b and 74b which can be opened and closed with respect to the receiving parts 73a and 74a. The discharge lid portions 73b and 74b constitute machine body outer side end portions 73f and 74f of the lid portions 73 and 74 in the lateral direction of the machine body, and are disposed at the machine body outer side end portions 73f and 74f with respect to the lid portions 73 and 74. ing. The discharge lid portions 73b and 74b are in the state where the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the discharge posture are opened, and the axial direction is at the upper part of the body outer end portions 73f and 74f of the lid portions 73 and 74. It is supported so as to be rotatable in the left-right direction of the body around a rotation axis (not shown) parallel to the direction.

  FIG. 5 is a diagram illustrating a state where the lid is opened during the discharging posture of the fertilizer storage hopper illustrated in FIG. 4. The discharge lid portions 73b and 74b have fixing means such as so-called patchon locks. With this fixing means, in the storage posture and the discharge posture of the fertilizer storage hoppers 71 and 72 (see FIGS. 3 and 4), the receiving portion 73a and 74a can be fixed in a closed state. Specifically, when the patch lid lock is closed with the receiving portions 73a and 74a closed, the discharge lid portions 73b and 74b rotate around a rotation shaft (not shown) with the receiving portions 73a and 74a closed. Is restricted, and the receiving portions 73a and 74a are fixed in a closed state. Further, when the patch lid is opened when the openings 71a and 72a (see FIG. 4) of the fertilizer storage hoppers 71 and 72 in the discharging posture are opened, the discharge lid portions 73b and 74b rotate around the rotation shaft (not shown). It becomes a movable state and can open the receiving parts 73a and 74a. Thereby, when the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 in the discharge posture are opened, the discharge lid portions 73b and 74b can be opened by a simple operation of opening the patch lock.

  Further, fertilizer guide members 73c and 74c are disposed on the lid portions 73 and 74, respectively. The fertilizer guide members 73c and 74c are disposed on the machine body outer side end portions 73f and 74f of the lid portions 73 and 74, respectively. The fertilizer guide members 73c and 74c are, for example, mesh ducts in which a mesh-like cloth is formed in a cylindrical shape. The fertilizer guide members 73c and 74c have an inner diameter and a length capable of guiding the fertilizer down to the outside of the machine body. As a result, the fertilizer guide members 73c and 74c open the openings 71a and 72a (see FIG. 4) of the fertilizer storage hoppers 71 and 72 (see FIG. 4) in the discharging posture, and then open the Patchon lock to receive the receiving portions 73a, When the discharge lid portions 73b and 74b are opened with respect to 74a, the fertilizer received by the receiving portions 73a and 74a is guided down to the outside of the machine body.

  FIG. 6 is a diagram illustrating a configuration of a fertilization transmission device of the seedling transplanter illustrated in FIG. 1. The fertilizer application device 70 includes a fertilizer supply device 76 that supplies the fertilizer in the fertilizer storage hopper 71 by a set amount.

  The fertilizer feeding device 76 supports the fertilizer storage hoppers 71 and 72 in the storage posture at the upper part thereof, and is disposed at the lower part of each of the plurality of funnel parts 71b and 72b. The fertilizer feeding device 76 has a feeding roll that is a feeding member that feeds the fertilizer in the fertilizer storage hoppers 71 and 72 in a storage posture by a set amount. The feeding roll is a columnar rotating body having a plurality of concave portions formed on the outer peripheral surface at intervals in the circumferential direction, and is integrally rotated by a feeding drive shaft 76b (see FIG. 3) extending in the left-right direction of the machine body. It is configured. In the fertilizer feeding device 76 disposed for each of the plurality of funnels 71b and 72b, a plurality of feeding rolls are rotationally driven by a feeding drive shaft 76b. Further, the fertilizer hose is connected to a fertilizer hose connecting portion 76a (see FIG. 3) provided at the rear part of the fertilizer feeding device 76 in the longitudinal direction of the machine body.

  The fertilizer transmission device 78 includes a crank arm 78a, a fertilizer driving rod 78b, a switching arm 78c, a fertilizer driven rod 78f, a feeding input arm 78g, and a one-way clutch 78h.

  The crank arm 78a is configured to be rotatable by the power from the engine 10 (see FIG. 1) transmitted through the rear wheel gear case 22 (see FIG. 1). The fertilizer application drive rod 78b is connected to the crank arm 78a and reciprocates in the vertical direction as the crank arm 78a rotates. The switching arm 78c is connected to the fertilization drive rod 78b, and rotates so that both ends in the longitudinal direction of the machine body alternately move up and down as the fertilization drive rod 78b reciprocates in the vertical direction. The fertilizer follower rod 78f is connected to the switching arm 78c and reciprocates in the longitudinal direction of the machine body as the switching arm 78c moves up and down. The feeding input arm 78g is connected to the fertilizer follower rod 78f and rotates in the longitudinal direction of the machine body as the fertilizer follower rod 78f reciprocates. The one-way clutch 78h is connected to the feeding input arm 78g, and rotates the feeding roll in one direction in the longitudinal direction of the machine body as the feeding input arm 78g rotates.

  FIG. 7 is a view showing a main part of the fertilizer transmission device shown in FIG. The switching arm 78c has a driving side arm portion 78d formed in a flat plate shape extending in the longitudinal direction of the machine body and a driven side arm portion 78e formed in a flat plate shape extending backward in the longitudinal direction of the machine body. The switching arm 78c is L-shaped in the left-right direction of the machine body with the driven-side arm part 78e ascending rearward with respect to the drive-side arm part 78d. It is fixed in an L shape when viewed from the direction. In the switching arm 78c, the driving side arm portion 78d and the driven side arm portion 78e rotate integrally. In addition, the switching arm 78c is provided with a bearing 78j into which a rotating shaft 78i (see FIG. 6) is fitted at the rear part of the driving side arm part 78d in the longitudinal direction of the machine body. As a result, the switching arm 78c is supported so as to be rotatable in the longitudinal direction of the body around the rotation shaft 78i parallel to the lateral direction of the body.

  Moreover, the drive side arm part 78d has two long holes 78k and 78m to which the fertilization drive rod 78b (see FIG. 6) is attached at an interval in the longitudinal direction of the machine body. The two long holes 78k and 78m are formed in an oval shape that is long in the longitudinal direction of the body when viewed from the left-right direction of the body. Of the two long holes 78k and 78m, one long hole 78k is formed in the front in the front-rear direction of the body, and the other long hole 78m is formed in the rear in the front-rear direction of the body. One long hole 78k has a wide space from the bearing 78j, and the other long hole 78m has a small space from the bearing 78j. Thereby, when the fertilization drive rod 78b is attached to one elongated hole 78k, the rotation angle of the drive side arm portion 78d with the rotation shaft 78i (see FIG. 6) as the rotation center becomes small, and the other When the fertilization drive rod 78b is attached to the long hole 78m, the rotation angle of the drive side arm portion 78d with the rotation shaft 78i as the rotation center becomes large.

  Accordingly, if the fertilization drive rod 78b (see FIG. 6) is attached to one of the long holes 78k, the rotation angle of the switching arm 78c is reduced, and if the fertilization drive rod 78b is attached to the other long hole 78m, The rotation angle increases. Thus, when the fertilizer application rod 78b is attached to one of the long holes 78k, the reciprocating width of the fertilizer driven rod 78f (see FIG. 6), the rotation angle of the feeding input arm 78g (see FIG. 6), and the one-way clutch 78h. Since the number of rotations of the feeding roll by (see FIG. 6) is reduced, the amount of fertilization by the fertilizer feeding device 76 (see FIG. 6) can be made “small”. If the fertilizer driving rod 78b is attached to the other elongated hole 78m, the reciprocating width of the fertilizer driven rod 78f, the rotation angle of the feeding input arm 78g, and the rotation speed of the feeding roll by the one-way clutch 78h are increased. The amount of fertilization by the fertilizer feeding device 76 can be set to “normal”. Thereby, the switching arm 78c switches the fertilization amount by the fertilizer feeding apparatus 76 to "small amount" or "normal" by switching the attachment position of the fertilization drive rod 78b to one long hole 78k or the other long hole 78m. Can do.

  Further, since the two long holes 78k, 78m are formed in an oval shape that is long in the longitudinal direction of the machine body, when the attachment position of the fertilization drive rod 78b (see FIG. 6) with respect to the two long holes 78k, 78m is switched forward. The rotation angle of the switching arm 78c decreases. Moreover, if the attachment position of the fertilization drive rod 78b with respect to the two long holes 78k and 78m is switched back, the rotation angle of the switching arm 78c will increase.

  Accordingly, a scale indicating that “heavy” is displayed in front of the longitudinal direction of the aircraft, and “light” is displayed behind in the longitudinal direction of the aircraft, above each of the two long holes 78k and 78m. Labels 78n and 78p are attached. “Heavy” as the identification display indicates that the two long holes 78k when the specific gravity of the fertilizer stored in the fertilizer storage hoppers 71 and 72 (see FIGS. 4 and 6) is heavier than normal (for example, the specific gravity is 0.9). , 78m, the attachment position of the fertilization drive rod 78b (see FIG. 6) is shown. “Light” as the identification display indicates an attachment position of the fertilizer driving rod 78b with respect to the two long holes 78k and 78m when the specific gravity of the fertilizer stored in the fertilizer storage hoppers 71 and 72 is lighter than usual.

  The switching arm 78c and the fertilization drive rod 78b (see FIG. 6) are detachably connected by a fastening member such as a bolt or a nut that can be fastened to the one long hole 78k or the other long hole 78m, for example. Yes. When the fastening member is loosened, the attachment position of the fertilizer driving rod 78b can be adjusted in the front-rear direction in one of the long holes 78k or the other long hole 78m, and the amount of fertilization by the fertilizer feeding device 76 (see FIG. 6) is adjusted. can do. Moreover, when a fastening member is removed, the attachment position with each of one long hole 78k or the other long hole 78m can be switched, and the amount of fertilization by the fertilizer feeding device 76 can be switched to "small amount" or "normal". it can. Thereby, the switching arm 78c can adjust the amount of fertilization by the fertilizer feeding device 76 to “small amount” or “normally” by a simple operation such as adjustment of the attachment position in the front-rear direction of the fertilization drive rod 78b and switching of the attachment position in the front-rear direction. And the amount of fertilization by the fertilizer feeding device 76 can be adjusted according to the specific gravity of the fertilizer stored in the fertilizer storage hoppers 71 and 72.

  The seedling transplanter 1-1 has the above-described configuration, and the operation thereof will be described below. During operation of the seedling transplanter 1-1, traveling of the traveling vehicle body 2 and planting of seedlings placed on the seedling mounting table 51 are performed by the power generated by the engine 10. This planting operation is performed by sequentially rotating the planting basket 61 of the seedling planting device 60 while the planting basket 62 also rotates, so that the seedlings placed on the seedling placement table 51 are sequentially taken by the planting basket 62, The seedlings are gradually planted in the field.

  When the traveling vehicle body 2 travels, the power generated by the engine 10 is transmitted to the belt-type power transmission mechanism 17 and is transmitted from the belt-type power transmission mechanism 17 to the hydraulic continuously variable transmission 16 so as to be hydraulically variable. It is converted into a desired rotation speed, rotation direction and torque by the machine 16 and output. The power output from the hydraulic continuously variable transmission 16 is transmitted to the mission case 18 where the transmission speed is suitable for the traveling speed when traveling on the road or the traveling speed when planting seedlings. The gear is shifted within 18 and output to the front wheel 4 side or the rear wheel 5 side.

  A part of the power output from the mission case 18 is shifted within the mission case 18 and then transmitted to the seedling planting part 50 side by a planting drive shaft (not shown). It is also used for planting work. In the planting pot 61, the driving force transmitted by the planting drive shaft is transmitted to each planting transmission case 64 by the planting transmission shaft. Each planting transmission case 64 transmits the driving force transmitted by the planting transmission shaft to the planting shaft (not shown) by a chain drive mechanism (not shown) provided in the planting transmission case 64. The planting shaft is rotated by the driving force transmitted as described above, and the planting rod 61 connected to the planting shaft is rotationally driven along with the rotation of the planting shaft. That is, the implant cage 61 rotates relative to the rotary case 63 while the implant cage 62 attached to the rotary case 63 rotates. As a result, the planting basket 62 sequentially takes the seedlings placed on the seedling placement table 51 and gradually plantes them in the field.

  As described above, when the seedling planting operation is performed by driving the seedling planting device 60, the seedling placement table 51 is reciprocated in the left-right direction of the machine body within a predetermined range. Thereby, the seedling planting device 60 has the planting rods 61 and 62 in the left-right direction of the machine body when the seedlings are taken out with respect to the seedling placing table 51 when the seedlings are taken out from the seedling placing table 51 by the planting rods 61 and 62. Remove the seedlings from the location and plant them in the field. That is, the seedling planting device 60 takes out a seedling from a portion corresponding to the predetermined strip in the seedling mounting table 51, and plants the seedling on the predetermined strip on the farm field. At the time of planting work, seedlings are planted in a plurality of rows by traveling in the field with the traveling vehicle body 2 while operating the seedling planting device 60 in this manner.

  Further, during the fertilization work, the crank arm 78a is rotated by the power from the engine 10 transmitted through the rear wheel gear case 22, and the fertilization drive rod 78b is reciprocated along with the rotation of the crank arm 78a. The switching arm 78c is rotated with the reciprocal movement of 78b, and the fertilizer follower rod 78f is reciprocated with the rotation of the switching arm 78c. The feeding input arm 78g is rotated with the reciprocating motion of the fertilizer follower rod 78f, and the feeding roll of the fertilizer feeding device 76 is rotated by the one-way clutch 78h with the rotation of the feeding input arm 78g. With the rotation of the feeding roll, the fertilizer in the fertilizer storage hoppers 71 and 72 is fed out and supplied to the field via the fertilizer hose. Here, the fertilizer feeding device 76 switches the mounting position of the fertilizer driving rod 78b attached to the switching arm 78c of the fertilizer transmission device 78 (the specific gravity of the fertilizer is “heavy” or “light”). It can switch to the fertilizer amount according to the specific gravity of the fertilizer stored by 71,72.

  In addition, when the fertilizer is discharged, after the engine 10 is stopped, the supply ports 71d and 72d of the fertilizer storage hoppers 71 and 72 are closed by the shutter 75, and then the patch locks 82 of the fertilizer storage hoppers 71 and 72 are opened. The fertilizer storage hoppers 71 and 72 are rotated rearward around the rotation shafts 71c and 72c to switch the fertilizer storage hoppers 71 and 72 from the storage posture to the discharge posture. Open the patch 71 of the lid portions 73 and 74, rotate the lid portions 73 and 74 rearward around the rotation shafts 71e and 72e, open the lid portions 73 and 74, and open the fertilizer storage hoppers 71 and 72. , 72a. When the lid portions 73 and 74 are opened, the fertilizer receiving portions 73a and 74a that are discharged through the openings 71a and 72a of the fertilizer storage hoppers 71 and 72 are received. With the receiving portions 73a and 74a receiving fertilizer, the patch lid locks 82 of the discharge lid portions 73b and 74b are opened, and the discharge lid portions 73b and 74b are rotated around the rotation shaft (not shown) to the outside of the machine body. The parts 73b and 74b are opened, and the receiving parts 73a and 74a are opened. Accordingly, the fertilizer received by the receiving portions 73a and 74a moves from the machine body inner end portions 73e and 74e toward the machine body outer end portions 73f and 74f, and the fertilizer guide disposed at the machine body outer end portions 73f and 74f. The members 73c and 74c are guided to flow down to the outside of the machine body and discharged. The fertilizer discharged outside the machine is collected in a collection container such as a bucket. Further, the fertilizer guided down to the outside by the fertilizer guide members 73c and 74c is suppressed from being scattered and discharged smoothly.

  The seedling transplanter 1-1 described above is configured to be able to switch between a storage posture and a discharge posture by rotatably supporting in the longitudinal direction of the body, and a discharge posture of the fertilizer storage hoppers 71 and 72. Receiving portions 73a, 74a that sometimes receive fertilizer. Further, lid portions 73 and 74 having discharge lid portions 73b and 74b arranged at the end portions in the left and right direction of the machine body are supported so as to be rotatable in the longitudinal direction of the machine body. Thus, by switching the fertilizer storage hoppers 71 and 72 from the storage posture to the discharge posture, the fertilizer remaining in the fertilizer storage hoppers 71 and 72 can be received by the receiving portions 73a and 74a of the lid portions 73 and 74. Further, the fertilizer received by the receiving portions 73a and 74a can be discharged out of the machine body by opening the discharge lid portions 73b and 74b. Thereby, the discharge operation of fertilizer can be carried out with a simple operation and few procedures. As a result, the time required for the fertilizer discharging operation can be shortened, and the labor required for the fertilizer discharging operation can be reduced. Further, since the air conveyance mechanism for discharging the fertilizer to the outside of the machine while being conveyed by air can be omitted, the structure of the machine body can be simplified and the number of parts can be reduced by omitting the air conveyance mechanism.

  Further, the lid portions 73 and 74 are formed in a bowl shape that becomes deeper from the airframe inner end portions 73e and 74e toward the airframe outer end portions 73f and 74f. Further, the discharge lid portions 73b and 74b are disposed on the machine body outer side end portions 73f and 74f of the lid portions 73 and 74, respectively. As a result, the fertilizer received by the receiving portions 73a and 74a can be urged from the body inner end portions 73e and 74e toward the body outer end portions 73f and 74f in the receiving portions 73a and 74a. As a result, discharge of the fertilizer received by the receiving portions 73a and 74a is promoted, and the time required for discharging the fertilizer can be shortened, and the labor required for the fertilizer discharging operation can be further reduced.

  Further, since the fertilizer can be discharged from the fertilizer storage hoppers 71 and 72 in a state where the engine 10 is stopped, fuel is not consumed and exhaust gas is not discharged during the fertilizer discharging operation. In addition, since the fertilizer storage hoppers 71 and 72, the lid portions 73 and 74, and the discharge lid portions 73b and 74b can be rotated by opening and closing fixing means such as patchon tablets, the fertilizer can be easily controlled. A discharge operation can be carried out. As a result, the workability of the fertilizer discharging operation can be improved.

  Further, since the fertilizer received by the receiving portions 73a and 74a can be guided down by the fertilizer guide members 73c and 74c, scattering of the fertilizer discharged outside the machine body can be suppressed, and smooth discharge of the fertilizer is promoted. Can do.

  Further, since the fertilizer storage hoppers 71 and 72 are divided into left and right in the left-right direction of the body, the weight of the fertilizer stored per one of the fertilizer storage hoppers 71 and 72 can be suppressed, and each fertilizer storage hopper Labor when rotating 71 and 72 in the longitudinal direction of the machine can be reduced. Moreover, since the cover parts 73 and 74 are divided into right and left in the body left-right direction, the fertilizer movement distance in the receiving parts 73a and 74a can be shortened, and the time required for the fertilizer movement can be shortened. it can. Further, the lid portions 73 and 74 are formed in a bowl shape that becomes deeper from the airframe inner end portions 73e and 74e toward the airframe outer end portions 73f and 74f, and the discharge lid portions 73b and 74b are the airframes of the lid portions 73 and 74, respectively. The outer end portions 73f and 74f are arranged. Thereby, a fertilizer can be collect | recovered by the body outer side, and the improvement of workability | operativity which collects a fertilizer can be aimed at. As a result, the time required for the fertilizer discharging operation can be shortened, and the labor required for the fertilizer discharging operation can be further reduced.

  Further, a plurality of elongated holes 78k, 78m to which the fertilization drive rod 78b is attached are formed in an oval shape that is long in the longitudinal direction of the machine body, and the switching arm according to the specific gravity of the fertilizer stored in the fertilizer storage hoppers 71, 72 The attachment position of the fertilization drive rod 78b with respect to 78c can be adjusted. When the attachment position of the fertilization drive rod 78b is set to one long hole 78k, the fertilization amount by the fertilizer supply device 76 can be switched to "small amount", and when the attachment position of the fertilization drive rod 78b is set to the other long hole 78m, the fertilizer supply device. The amount of fertilization by 76 can be switched to “normal”. Moreover, in each of the long holes 78k and 78m, the fertilizer application device 76 applies fertilizer according to the specific gravity of the fertilizer stored in the fertilizer storage hoppers 71 and 72 by switching the mounting position of the fertilizer driving rod 78b in the longitudinal direction of the machine body. The amount can be adjusted.

  When the fertilizer storage hoppers 71 and 72 are provided with fertilizer and herbicide supply switches, and the work area detected by the rotation sensor of the rear wheel 5 at the time of transplanting reaches the consumption area of the fertilizer and herbicides when the supply switch is turned on. If the remaining amount alarm is sounded, it is possible to prevent insufficient spraying due to consumption of fertilizers and herbicides. The rotation sensor is provided on the left and right rear wheels 5, and when the difference between the left and right rotations becomes large, it is determined that the vehicle is turning, and the work area can be accurately calculated by not adding to the work area. The number of rotations of the rotation sensor is corrected with a predetermined slip ratio. However, if the slip ratio is made smaller as the dial at the beginning of planting is made faster, it becomes accurate. The work area will be corrected with the number of transplants.

  In addition, a consumption timer is provided in the fertilizer storage hoppers 71 and 72, and an alarm is sounded at the set consumption area to notify the operator of the end of spraying. This consumption timer alerts the side if the reset switch is not pressed, so you don't forget to replenish fertilizers and herbicides. By making the dial mark of this consumption timer coincide with the area label color, it becomes easy to understand. It is preferable to provide a timer for each consumption area so that the necessary timer is activated.

2 traveling body 28 control seat 35 interlocking wire 40 seedling planting part lifting mechanism 50 seedling planting part 70 fertilizer 71 fertilizer storage hopper 71c rotating shaft 72 fertilizer storage hopper 72c rotating shaft 80 hopper support stand

Claims (4)

  A fertilizer applying device (70) is mounted on the rear part of the control seat (28), and a seedling planting part (50) is provided on the rear part of the traveling vehicle body (2) so as to be moved up and down by a seedling planting part lifting mechanism (40). In the seedling transplanting machine, the seedling planting part lifting mechanism (40) of the seedling planting part (50) is interlocked with the backward rotation operation of the fertilizer storage hopper (71, 72) of the fertilizer application apparatus (70). A seedling transplanter with fertilizer application, characterized by locking.   The seedling transplanter with a fertilizer application device according to claim 1, wherein the raising / lowering operation of the seedling planting part (50) is invalidated when the seedling planting part lifting mechanism (40) is locked.   The fertilizer storage hopper (71, 72) is pivotally supported by a rotation shaft (71c, 72c) with respect to a hopper support (80) provided on the traveling vehicle body (2), and the fertilizer storage hopper (71, 72) is supported. The seedling transplanter with a fertilizer application device according to claim 1 or 2, wherein the seedling planting part elevating mechanism (40) is locked by an interlocking wire (35) that is pulled along with the backward rotation. .   When the seedling planting part lifting mechanism (40) is locked, the seedling planting part (50) is separated from the fertilizer storage hopper (71, 72), and the seedling planting part (50) is returned to the working position when the lock is released. The seedling transplanter with a fertilizer application device according to any one of claims 1 to 3, wherein the seedling transplanter is a fertilizer application device.

Images