JP2016067303A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter capable of reducing time and effort required for discharge work of a fertilizer.SOLUTION: A seedling transplanter comprises: a seedling placing table 51; a seedling planting apparatus 60 for taking seedlings from the seedling placing table 51 and planting the seedlings to a field; and a fertilizer application apparatus 70 for supplying a fertilizer to the field. The fertilizer application apparatus 70 comprises storage hoppers 71, 72 in which the fertilizer is stored, and openable/closable cover parts 73, 74 which are supported rotatably to the storage hoppers 71, 72 in a machine body longitudinal direction. The storage hoppers 71, 72 are supported rotatably to a vehicle body 2 in the machine body longitudinal direction. The cover parts 73, 74 comprise receiving parts 73a, 74a for receiving the fertilizer in the storage hoppers 71, 72, and discharge cover parts 73b, 74b which are disposed at end parts 73f, 74f of the cover parts 73, 74 in a machine body cross direction, and are openable and closable with respect to the receiving parts 73a, 74a.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seedling transplanter that performs operations such as planting seedlings in a field.

  In seedling transplanters that carry out operations such as planting seedlings on farm fields, such as riding rice transplanters, seedling placement stands that are provided at the rear of the traveling vehicle body to place seedlings, are provided at the bottom of the seedling placement stand, A seedling planting part for planting a fertilizer and a fertilizer application device for supplying fertilizer to a farm field are provided (for example, see Patent Documents 1 and 2).

  The seedling transplanter described in Patent Document 1 is a fertilizer that transports fertilizer in a storage hopper in a fertilizer hose by a transport wind generated by a blower and supplies it to a field, and a discharge duct by a transport wind generated by the blower It is provided with a switching shutter that can be switched to each of the fertilizer discharge work that is transported inside and discharged out of the machine body. For this reason, in the seedling transplanting machine described in Patent Document 1, since the fertilizer can be sent out of the machine body from the discharge duct by the conveying wind generated by the blower, the operator collects the fertilizer with a collection container such as a bucket. Can work.

  The seedling transplanter described in Patent Document 2 includes a pair of storage hoppers that are configured to be able to flip up in the left-right direction of the body around the pivot point of the outer end of the body in the left-right direction. Moreover, the seedling transplanter described in Patent Document 2 has a discharge port for discharging the fertilizer in the storage hopper at the outer end of the pair of storage hoppers in the lateral direction of the body. For this reason, in the seedling transplanter described in Patent Document 2, when the pair of storage hoppers are in a state of being flipped up together, the fertilizer in the storage hopper moves toward the outside of the aircraft in the lateral direction of the aircraft. Fertilizer can be discharged out of the fuselage from a discharge port provided at the outer edge of the fuselage.

JP, 2014-121280, A JP 2011-193733 A

  However, in the seedling transplanter shown in Patent Document 1, since the blower or the like is driven by the power from the engine, it is necessary to move the engine at the time of the fertilizer discharging operation, and the fuel is consumed until the manure discharging operation is completed. There is a problem of exhaust gas exhaust. Further, since the fertilizer is transported in the discharge duct by the transport wind generated by the blower, there is a problem that the fertilizer is clogged in the discharge duct when a large amount of fertilizer is fed into the discharge duct at a time. Further, if the amount of fertilizer fed into the discharge duct is reduced so that the fertilizer is not clogged in the discharge duct, there is a problem that the time required for the discharge work becomes long.

  Further, in the seedling transplanter shown in Patent Document 2, since a large force is required to jump up the pair of storage hoppers with the fertilizer remaining in the storage hopper, the operability is poor, and it is extra for the operator. There is a problem of spending a lot of effort. Further, when the pair of storage hoppers are flipped up with the discharge port closed, the operator must open the discharge port while holding the storage hopper in the lifted state, which causes a problem that the operability is further deteriorated. In addition, if the pair of storage hoppers are flipped up with the discharge ports open, the fertilizer is discharged from the discharge ports as the pair of storage hoppers are gradually lifted, so that a collection container such as a bucket can be used according to the position of the discharge ports. Need to move the storage hopper, and in addition to the worker who moves up the storage hopper, there is a need for a worker who moves the container with the collection container, which increases the labor required to discharge the fertilizer There's a problem.

  This invention is made in view of the above, Comprising: It aims at providing the seedling transplanting machine which can shorten the time which the discharge operation of a fertilizer shortens, and can reduce the effort which a discharge operation of a fertilizer requires. .

  In order to solve the above-described problems and achieve the object, the seedling transplanting machine according to claim 1 of the present invention includes a seedling placing table (51) for placing a seedling on a rear portion of the traveling vehicle body (2), A seedling planting device (60) disposed at a lower portion of the seedling mounting table (51), taking seedlings from the seedling mounting table (51) and planting them in a field, a fertilizer application device (70) for supplying fertilizer to the field, The fertilizer applicator (70) includes a storage hopper (71, 72) in which fertilizer is stored, and is supported by the storage hopper (71, 72) so as to be rotatable in the front-rear direction of the fuselage. And the storage hopper (71, 72) is supported rotatably with respect to the traveling vehicle body (2) in the longitudinal direction of the machine body, and the lid (73, 74). ) Receiving portions (73a, 74a) for receiving fertilizer in the storage hopper (71, 72) and the lid (73, 74) having a discharge lid portion (73b, 74b) that is disposed at an end portion (73f, 74f) in the left-right direction of the body and can be opened and closed with respect to the receiving portion (73a, 74a). Features.

  Further, the invention according to claim 2 is the seedling transplanting machine according to claim 1, wherein the lid (73, 74) is connected to the other end from the one end (73e, 74e) in the left-right direction of the body. The discharge lid portions (73b, 74b) are arranged at the other end portions (73f, 74f) of the lid portions (73, 74). It is provided.

  The invention described in claim 3 is the seedling transplanter according to claim 2, wherein the receiving portion (73a) is provided at the other end portion (73f, 74f) of the lid portion (73, 74). , 74a) is provided with fertilizer guide members (73c, 74c) for guiding the fertilizer flowed down to the outside of the machine body.

  In addition, the invention according to claim 4 is the seedling transplanter according to any one of claims 1 to 3, wherein each of the storage hopper (71, 72) and the lid (73, 74) is The lids (73, 74) are divided into left and right sides in the left-right direction of the machine body, and the lid parts (73, 74) have a bowl shape that becomes deeper from the inner side edge parts (73e, 74e) to the outer side edge parts (73f, 74f). The discharge lid portions (73b, 74b) are formed at the outer end portions (73f, 74f) of the machine body of the lid portions (73, 74).

  Moreover, invention of Claim 5 is a seedling transplanter as described in any one of Claims 1-4. WHEREIN: The said fertilizer application (70) pays out the fertilizer in the said storage hopper (71, 72) The fertilizer feeding device (76), the fertilizer driving rod (78b) for transmitting a driving force to the fertilizer feeding device (76), and the mounting position of the fertilizer driving rod (78b) are switched in the longitudinal direction of the machine body to feed the fertilizer. A switching arm (78c) that switches the amount of fertilizer applied by the device (76) to “normal” or “small amount”, and depending on the specific gravity of the fertilizer stored in the storage hopper (71, 72), The attachment position in the longitudinal direction of the machine body of the fertilization drive rod (78b) with respect to the switching arm (78c) is adjustable.

  Moreover, the invention of claim 6 is the seedling transplanter of claim 5, wherein the fertilizer application device (70) is a fertilizer application switching device (79) for switching the fertilizer application amount by the fertilizer feeding device (76). The fertilizer application switching device (79) is attached with a display label (79c) indicating the fertilizer application amount by the fertilizer supply device (76), and the display label (79c) is provided with the fertilizer application amount. The mounting position with respect to the switching device (79) is adjustable.

  The seedling transplanter according to claim 1, the fertilizer remaining in the storage hopper (71, 72) is removed from the lid (73, 74) by rotating the storage hopper (71, 72) in the longitudinal direction of the machine body. The fertilizer that can be received by the receiving portions (73a, 74a) and can be discharged to the outside of the machine body by opening the discharge lid portions (73b, 74b). 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.

  In addition to the effect of the invention of claim 1, the seedling transplanting machine according to claim 2 is characterized in that in the receiving part (73a, 74a), from the one end part (73e, 74e) to the other end part (73f, 74f). The fertilizer received at the receiving portions (73a, 74a) can be moved toward the head.

  In addition to the effect of the invention of claim 2, the seedling transplanter according to claim 3 can guide the fertilizer received by the receiving portions (73a, 74a) by the fertilizer guide members (73c, 74c).

  In addition to the effect of the invention according to any one of claims 1 to 3, the seedling transplanting machine according to claim 4 has a discharge lid portion (73b, 74b) as an outer end portion of the body of the lid portion (73, 74). (73f, 74f), the work of collecting the fertilizer can be performed outside the machine body, and the workability of collecting the fertilizer can be improved.

  In addition to the invention according to any one of claims 1 to 4, the seedling transplanter according to claim 5 switches the attachment position of the fertilization drive rod (78b) in the longitudinal direction of the machine body, thereby storing the hopper (71, The fertilizer application amount by the fertilizer feeding device (76) can be adjusted according to the specific gravity of the fertilizer stored in 72).

  In addition to the effect of the invention of claim 5, the seedling transplanter according to claim 6 can match the fertilization amount indicated by the fertilization amount switching device (79) according to the actual fertilization amount for the field. .

FIG. 1 is a side view showing a seedling transplanter according to the first embodiment. FIG. 2 is a top view of the seedling transplanter shown in FIG. FIG. 3 is a rear view of the fertilizer application of the seedling transplanter shown in FIG. 4 is a side view of the seedling transplanter shown in FIG. 1 in a discharging posture of the storage hopper. FIG. 5 is a diagram illustrating a state where the lid is opened during the discharging posture of the storage hopper illustrated in FIG. 4. FIG. 6 is a diagram illustrating a configuration of a fertilization transmission device of the seedling transplanter illustrated in FIG. 1. FIG. 7 is a view showing a main part of the fertilizer transmission device shown in FIG. FIG. 8 is a diagram showing a configuration of the fertilizer application amount switching device, which is a modification of the seedling transplanter according to the first embodiment. FIG. 9 is a diagram showing a main part of the fertilizer application amount switching device shown in FIG. FIG. 10 is another explanatory example of the seedling transplanter according to the first embodiment, and is an explanatory diagram in the case of using an integrally formed display label. FIG. 11 is a side view showing a seedling transplanter according to the second embodiment. FIG. 12 is a top view of the seedling transplanter shown in FIG. FIG. 13 is a diagram illustrating a main part of a seedling transplanting unit of the seedling transplanting machine illustrated in FIG. 11. FIG. 14 is a side view showing a seedling transplanter according to the third embodiment. FIG. 15 is a top view of the seedling transplanter shown in FIG. FIG. 16 is a diagram showing a main part of the seedling transplanting device of the seedling transplanting machine shown in FIG. FIG. 17 is a diagram showing a main part of the seedling planting apparatus shown in FIG.

  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.

Embodiment 1
FIG. 1 is a side view showing a seedling transplanter according to the first embodiment. FIG. 2 is a top view of the seedling transplanter shown in FIG. 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 according to the first embodiment has a pair of left and right front wheels 4 and a pair of left and right rear wheels 5 as well. A car. 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 transmits a main frame 7 disposed substantially in the center of the vehicle body, an engine 10 mounted on the main frame 7, and a driving force of the engine 10 to driving wheels and a seedling planting unit 50. And a power transmission device 15. That is, in this seedling transplanter 1-1 according to the first embodiment, the power generated by the engine 10 that is the power source is not only used for moving the traveling vehicle body 2 forward and backward, but also using the seedling planting unit 50. Also used to drive.

  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 operation device, instruments, and a handle 32 are disposed at 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 (Hydro Static 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 that causes the traveling vehicle body 2 to travel.

  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 according to the first embodiment, the front and rear of the body It is arranged in front of the engine 10 in the direction.

  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 range in which a seedling is planted in a plurality of sections or a plurality of rows. In the seedling transplanter 1-1 according to the first embodiment, a seedling is planted in four sections. It is a so-called 4-row planting 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, it is not necessary to return the seedling prepared outside the field every time the seedling placed on the seedling placing stand 51 is planted, and continuous work can be performed, so that the 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. The seedling planting device 60 is a device that takes the seedlings placed on the seedling placing stand 51 from the seedling placing stand 51 and places them on a farm field. A planting transmission case 64, a planting basket 61, and a planting 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.

  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 transplanting device 60 included in the seedling transplanter 1-1 according to the first embodiment includes two planting transmission cases 64, and thus includes four transplanting rods 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 pod 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 transplanter 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 70 includes storage hoppers 71 and 72 in which fertilizer is stored, lids 73 and 74 that are supported by the storage hopper 71 so as to be rotatable in the longitudinal direction of the machine body, and that can be opened and closed, and storage hoppers 71 and 72. The fertilizer supplied from the fertilizer hose (not shown) for transporting the fertilizer supplied to the seedling planting part 50 side and the supply air to the fertilizer hose allows the fertilizer in the fertilizer hose to be fed to the seedling planting part 50 side. And a blower 77 (see FIG. 3) which is a wind generating device to be transferred.

  FIG. 3 is a rear view of the fertilizer application of the seedling transplanter shown in FIG. 4 is a side view of the seedling transplanter shown in FIG. 1 in a discharging posture of the storage hopper. The 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 storage hoppers 71 and 72 are divided into left and right parts in the left-right direction of the fuselage in the storage posture, and a plurality of funnels 71b and 72b (two in the first embodiment) are provided below the respective storage hoppers 71 and 72. Are formed). In each of the plurality of funnel portions 71b and 72b, supply ports 71d and 72d (see FIG. 2) are opened downward when the storage hoppers 71 and 72 are in the storage posture. When the storage hoppers 71 and 72 are in the storage posture, shutters 75 (see FIGS. 1 and 4) capable of opening and closing the supply ports 71d and 72d are disposed at the lower portions of the plurality of funnel portions 71b and 72b, respectively. . 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 storage hoppers 71 and 72 can be stopped by closing the supply ports 71 d and 72 d with the shutter 75.

  In addition, the storage hoppers 71 and 72 have rotating shafts 71c and 72c whose axial direction is parallel to the left-right direction of the machine body on the rear side in the machine body front-rear direction below the funnel parts 71b and 72b in the storage posture. The shafts 71c and 72c are supported so as to be rotatable in the longitudinal direction of the machine body. The storage hoppers 71 and 72 are supported so as to be switchable between a storage posture capable of storing fertilizer and a discharge posture capable of discharging fertilizer. When the storage hoppers 71 and 72 are rotated forward in the longitudinal direction of the machine body around the pivot shafts 71c and 72c, the storage hoppers 71 and 72 are in a storage attitude. Become. The storage hoppers 71 and 72 are rotatable within a range (for example, a range of about 90 degrees) that does not interfere with the seedling planting unit 50 (see FIG. 1) and the like. Here, the storage posture of the 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 FIGS. Further, the discharging posture of the storage hoppers 71 and 72 is a posture in which the supply ports 71d and 72d (see FIG. 3) are located in front of the front and rear direction of the machine body and the openings 71a and 72a are located in the rear of the front and rear direction of the machine body. This is the posture shown in FIG.

  The left and right storage hoppers 71 and 72 have fixing means such as so-called patch locks (also called snap locks), and can be fixed in a storage posture by the fixing means. Specifically, the left and right storage hoppers 71 and 72 are in a state in which the rotation around the rotation shafts 71c and 72c is restricted when the patchon lock is closed in the storage posture, and are fixed in the storage posture. Further, when the Patchon lock is opened in the storage posture, it can be 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, the storage posture and the discharge posture of the storage hoppers 71 and 72 can be switched by a simple operation of opening and closing a fixing means such as a patchon lock.

  Lids 73 and 74 that cover the openings 71a and 72a of the storage hoppers 71 and 72 are arranged to be openable and closable on the upper portions of the left and right 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-right direction of the vehicle body on the rear side in the vehicle body longitudinal direction above the storage hoppers 71 and 72 in the storage posture. 71e and 72e are supported so as to be rotatable in the longitudinal direction of the machine 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. Further, since the lid portions 73 and 74 are rotatably supported around the rotation shafts 71e and 72e located on the opposite side of the control seat 28 when the storage hoppers 71 and 72 are stored, the control seats The lids 73 and 74 can be opened and closed from the 28th side. Thereby, since the cover parts 73 and 74 can be opened with respect to the openings 71a and 72a of the storage hoppers 71 and 72 in the storage posture, it becomes easy to put the fertilizer into the storage hoppers 71 and 72 from the control seat 28 side, and the work efficiency Will improve.

  The lid portions 73 and 74 have fixing means such as so-called patchon locks, and the fixing means fixes the storage hoppers 71 and 72 with the openings 71a and 72a closed in the storage posture and the discharge posture. Is possible. Specifically, the lid portions 73 and 74 are in a state in which the rotation around the rotation shafts 71e and 72e is restricted in a state where the openings 71a and 72a are covered when the patchon lock is closed, and the openings 71a and 72a are covered. Fixed in state. Further, when the patchon lock is opened with the openings 71a and 72a covered, the pivots 71e and 72e can be freely rotated, and the lids 73 and 74 are rotated around the rotation axes 71e and 72e. The openings 71a and 72a can be opened. As a result, when the storage hoppers 71 and 72 are in the discharging posture, the openings 71a and 72a can be opened by a simple operation of opening the fixing means such as the patch lock.

  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 storage hoppers 71 and 72 in a storage attitude | position. In the first embodiment, the lid portions 73 and 74 are opened from the airframe inner side end portions 73e and 74e in the left-right direction of the airframe in a state where the openings 71a and 72a of the storage hoppers 71 and 72 in the discharging posture are opened (a state shown in FIG. 4). It forms in the shape of a bowl where the depth of a perpendicular direction becomes deep as it goes to the body outer side edge part 73f and 74f. 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 storage hoppers 71 and 72 in the discharging posture are opened. . Here, the airframe inner side end portions 73e and 74e of 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. . Further, the outer side edge portions 73f and 74f of the lid portions 73 and 74 are the 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 aircraft body.

  The lid portions 73 and 74 receive the fertilizer 73a and 74a that receive fertilizer from the storage hoppers 71 and 72 through the openings 71a and 72a when the openings 71a and 72a of the storage hoppers 71 and 72 in the discharging posture are opened. Have

  The receiving portions 73a and 74a are formed inside the lid portions 73 and 74, and the lids 73 and 74 cover the openings 71a and 72a of the storage hoppers 71 and 72 in the storage posture. It is formed in an arc shape that is convex upward. The receiving portions 73a and 74a open upward in a state in which the openings 71a and 72a of the storage hoppers 71 and 72 in the discharging posture are opened, and as they go from the airframe inner end portions 73e and 74e toward the airframe outer end portions 73f and 74f. Deepen vertically. The receiving portions 73a and 74a have a depth to receive the fertilizer in the storage hoppers 71 and 72 when the openings 71a and 72a of the 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 left-right 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 storage hoppers 71 and 72 in the discharge posture are opened, and the axial direction is on the upper side of the body outer end portions 73f and 74f of the lid portions 73 and 74. Is supported so as to be rotatable in the left-right direction of the machine body.

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

  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 patches 71a and 72a (see FIG. 4) of the storage hoppers 71 and 72 (see FIG. 4) in the discharging posture, and then open the patch and lock, thereby receiving parts 73a and 74a. On the other hand, when the discharge lid portions 73b and 74b are opened, 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 storage hopper 71 by a set amount.

  The fertilizer feeding device 76 supports the storage hoppers 71 and 72 in the storage posture at the upper portion thereof, and is disposed at the lower portion of each of the plurality of funnel portions 71b and 72b. The fertilizer feeding device 76 has a feeding roll which is a feeding member that feeds the fertilizer in the storage hoppers 71 and 72 in the 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 arranged for each of the plurality of funnel portions 71b and 72b, a plurality of feeding rolls are rotationally driven by the 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 front-rear 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 longitudinal direction of the body, and the other long hole 78m is formed in the rear in the longitudinal 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 placed in front of the longitudinal direction of the aircraft and an indicator of “light” is placed 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 means two elongated holes 78k when the specific gravity of the fertilizer stored in the storage hoppers 71 and 72 (see FIGS. 4 and 6) is heavier than normal (for example, the specific gravity is 0.9), The attachment position of the fertilization drive rod 78b (refer FIG. 6) with respect to 78m is shown. “Light” as the identification display indicates a mounting position of the fertilization drive rod 78b with respect to the two long holes 78k and 78m when the specific gravity of the fertilizer stored in the 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 storage hoppers 71 and 72.

  The seedling transplanter 1-1 according to the first embodiment is configured as described above, 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, the 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 storage hoppers 71 and 72 is fed out and supplied to the field through 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”), thereby storing the hopper 71. , 72 can be switched to the amount of fertilizer applied according to the specific gravity of the fertilizer stored.

  In addition, when the fertilizer is discharged, the supply port 71d, 72d of the storage hoppers 71, 72 is closed by the shutter 75 while the engine 10 is stopped, and then the patching lock of the storage hoppers 71, 72 is opened to store the storage hopper 71. , 72 is rotated rearward around the rotation shafts 71c, 72c, and the storage hoppers 71, 72 are switched from the storage posture to the discharge posture. The patch portions of the lid portions 73 and 74 are opened, the lid portions 73 and 74 are rotated rearward around the rotation shafts 71e and 72e, the lid portions 73 and 74 are opened, and the openings 71a and 72a of the storage hoppers 71 and 72 are opened. open. 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 storage hoppers 71 and 72 are received. With the receiving portions 73a and 74a receiving fertilizer, the patch lid locks 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. 73b and 74b are opened, and the receiving portions 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 prevented from being scattered and discharged smoothly.

  The seedling transplanter 1-1 according to the first embodiment described above has storage hoppers 71 and 72 that can be switched between a storage posture and a discharge posture by rotatably supporting in the longitudinal direction of the body, and the storage hoppers 71 and 72. Receiving portions 73a and 74a for receiving fertilizer during the discharging posture. 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. Accordingly, by switching the storage hoppers 71 and 72 from the storage posture to the discharge posture, the fertilizer remaining in the 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. In addition, 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, in the receiving portions 73a and 74a, the fertilizer received by the receiving portions 73a and 74a can be promoted from the inner end portions 73e and 74e toward the outer end portions 73f and 74f. 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 storage hoppers 71 and 72 while the engine 10 is stopped, fuel is not consumed during exhausting the fertilizer, and exhaust gas is not discharged. In addition, since the storage hoppers 71 and 72, the lid portions 73 and 74, and the discharge lid portions 73b and 74b can be switched by opening and closing a fixing means such as a patchon lock, the fertilizer can be discharged with a simple operation. Work 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 storage hoppers 71 and 72 are divided into left and right in the left-right direction of the fuselage, the weight of the fertilizer stored per one of the storage hoppers 71 and 72 can be suppressed, and the respective storage hoppers 71 and 72 can be suppressed. It is possible to reduce labor when rotating the vehicle in the longitudinal direction. Moreover, since the cover parts 73 and 74 are divided into right and left in the body left-right direction, the movement distance of the fertilizer in the receiving parts 73a and 74a can be shortened, and the time required for the movement of the fertilizer 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 disposed. 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.

  A plurality of elongated holes 78k, 78m to which the fertilization drive rod 78b is attached are formed in an oval shape long in the longitudinal direction of the machine body, and the switching arm 78c is selected according to the specific gravity of the fertilizer stored in the storage hoppers 71, 72. The attachment position of the fertilization drive rod 78b 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”. Further, in each of the long holes 78k and 78m, the amount of fertilizer applied by the fertilizer feeding device 76 is changed according to the specific gravity of the fertilizer stored in the storage hoppers 71 and 72 by switching the mounting position of the fertilizer driving rod 78b in the longitudinal direction of the machine body. Can be adjusted.

  FIG. 8 is a diagram showing a configuration of the fertilizer application amount switching device, which is a modification of the seedling transplanter according to the first embodiment. The seedling transplanter illustrated here has the fertilization transmission device 78 similarly to the seedling transplanter according to the first embodiment. Moreover, the seedling transplanting machine exemplified here further includes a fertilization amount switching device 79 that switches the fertilization amount (kg / anti) per unit area of the field to an arbitrary amount.

  The fertilizer application amount switching device 79 includes a main body portion 79a disposed above the switching arm 78c, a fertilizer application amount adjustment handle 79b supported above the main body portion 79a, and a fertilizer application amount adjustment handle extending below the main body portion 79a. A fertilizer adjustment rod 79e that can be expanded and contracted in the vertical direction by the operation of 79b and a fertilizer adjustment arm 79f that is connected to the lower portion of the fertilizer adjustment rod 79e and rotates in the longitudinal direction as the fertilizer adjustment rod 79e expands and contracts. And have.

  The main body 79a includes, for example, a display label 79c that displays a fertilization amount of 10 to 80 (kg / counter), an instruction unit 79d that is disposed in the main body 79a and indicates the fertilization amount on the display label 79c, An opening 79g for visually instructing the instruction portion 79d from the outside of the main body 79a.

  The fertilizer application amount adjustment handle 79b supported above the main body 79a is connected to the upper part of the fertilizer application amount adjustment rod 79e and fixed to the upper end of the ball screw part 79p. Thereby, the fertilizer application amount adjusting handle 79b can be rotated around the axis of the ball screw portion 79p, and the ball screw portion 79p can be rotated integrally by the rotation operation. The instruction portion 79d has a female screw that is screwed with the ball screw portion 79p, and can move up and down as the ball screw portion 79p rotates. Thereby, the instruction | indication part 79d can be moved up and down by rotation operation of the fertilizer application amount adjustment handle 79b.

  The fertilizer application amount adjusting rod 79e connected to the lower portion of the ball screw portion 79p has a female screw that is screwed with the ball screw portion 79p, and can move up and down as the ball screw portion 79p rotates. The fertilization amount adjustment arm 79f connected to the lower portion of the fertilization amount adjustment rod 79e is formed in a flat plate shape extending rearwardly. The fertilizer application amount adjusting arm 79f is disposed at an end portion in the rearward upward direction, and is rotatably supported around a fertilizer application amount adjusting side rotation shaft 79j parallel to the left and right direction of the machine body. The fertilizer application amount adjusting arm 79f has a rotation shaft 78i rotatably disposed at the front, that is, at the end portion in the front lowering direction below the fertilizer application amount adjustment side rotation shaft 79j. The rotation shaft 78i has a support portion 79k that is connected to the lower portion of the fertilization amount adjustment rod 79e and supports the lower portion of the fertilization amount adjustment rod 79e. That is, the fertilizer application amount adjusting arm 79f and the support portion 79k are connected via the rotation shaft 78i. Thereby, the switching arm 78c can be moved up and down with the vertical movement of the fertilizer application amount adjusting rod 79e.

  Here, for example, when the fertilizer application amount adjustment handle 79b is rotated in one direction so that the fertilizer application amount is 80 (kg / counter), the instruction unit 79d and the switching arm 78c are accompanied by the rotation of the ball screw unit 79p in one direction. Moves upward and the angle A formed by the fertilizer application rod 78b and the switching arm 78c approaches 90 degrees. As a result, the rotation angle of the switching arm 78c that is rotationally driven by the fertilization drive rod 78b is increased, and the fertilization amount by the designed fertilizer supply device 76 is 80 (kg / counter).

  Further, for example, when the fertilizer amount adjustment handle 79b is rotated in the other direction (the opposite direction to the case where the fertilizer amount is 80 (kg / counter)) so that the fertilizer amount becomes 10 (kg / counter), the ball screw As the portion 79p rotates in the other direction, the instruction portion 79d and the switching arm 78c move downward, and the angle A formed by the fertilization drive rod 78b and the switching arm 78c moves away from 90 degrees. Thereby, the rotation angle of the switching arm 78c rotated by the fertilization drive rod 78b becomes small, and the fertilization amount by the design fertilizer feeding device 76 becomes 10 (kg / counter). Thus, by rotating the fertilizer application amount adjustment handle 79b of the fertilizer application amount switching device 79, the fertilizer application amount by the fertilizer supply device 76 is arbitrarily set within a range of, for example, 10 to 80 (kg / counter). Can do.

  FIG. 9 is a diagram showing a main part of the fertilizer application amount switching device shown in FIG. In the fertilizer application switching device 79 (see FIG. 8), for example, in order to make it possible to visually recognize the fertilizer application amount set in the range of 10 to 80 (kg / anti), the display label 79c is detachably attached and movably attached. Yes. The display label 79c is made of, for example, a so-called magnet sheet (also referred to as a rubber magnet) formed into a sheet shape by kneading magnet powder in a rubber material. The display label 79c has a display layer for displaying the fertilization amount as an identification display on the magnet sheet, and for example, a number corresponding to the fertilization amount of 10 to 80 (kg / anti) is displayed on the display layer. It is displayed. The display label 79c in the modification of the first embodiment includes a normal label 79h for displaying the fertilization amount (kg / anti) when the fertilization amount by the fertilizer feeding device 76 is switched to “normal”, and the fertilizer feeding device. And a small amount label 79i for displaying the amount of fertilization (kg / counter) when the amount of fertilization according to 76 is switched to “small amount”.

  The normal side label 79h displays, for example, a number of 30 to 80, characters of “standard kg”, and a scale indicated by the instruction unit 79d as a normal fertilizing amount (kg / anti) range. The small amount side label 79i displays, for example, a number of 10 to 40, a character of “small amount kg”, and a scale indicated by the instruction unit 79d as a range of a small amount of fertilization (kg / anti). The main body 79a to which the normal side label 79h and the small amount side label 79i are attached is made of, for example, iron or the like to which a magnet is attracted. That is, the normal side label 79h and the small amount side label 79i can be attached to and detached from the main body 79a, and the attachment positions thereof can be adjusted. Thereby, the attachment position of the display label 79c can be adjusted according to the actual fertilizer application amount (kg / anti) by the fertilizer supply device 76, and the actual fertilizer application amount (kg / anti) and fertilizer by the fertilizer supply device 76 can be adjusted. The fertilization amount (kg / anti) displayed by the amount switching device 79 can be matched.

  In the modified example of the seedling transplanter according to the first embodiment configured as described above, the display label 79c indicating the fertilization amount by the fertilizer feeding device 76 is attached to the fertilization amount switching device 79, and the attachment position of the display label 79c Is adjustable with respect to the fertilizer application switching device 79. Thereby, according to the actual fertilization amount (kg / anti) with respect to a farm field, the fertilization amount (kg / anti) which the fertilization amount switching apparatus 79 instruct | indicates can be made to correspond. As a result, the accuracy of fertilization amount can be improved, and the workability of fertilization work can be improved.

  FIG. 10 is another explanatory example of the seedling transplanter according to the first embodiment, and is an explanatory diagram in the case of using an integrally formed display label. In the modification of the seedling transplanter according to the first embodiment, the display label 79c includes the normal side label 79h (see FIG. 9) and the small amount side label 79i (see FIG. 9). Since it is only necessary to display the fertilization amount set in FIG. 9, the display label may be integrated.

  The display label 79c is integrally formed in a concave shape with the upper part connected in the left-right direction of the machine body, and a portion for displaying numbers and scales is formed with the opening 79g of the main body 79a interposed therebetween. The display label 79c is formed with a label side alignment portion 79m for aligning the attachment position with respect to the main body portion 79a. On the main body portion 79a to which the display label 79c is attached, a main body portion side alignment portion 79n for aligning the attachment position of the display label 79c is formed. The label side alignment part 79m and the main body part side alignment part 79n have a specific gravity of the fertilizer stored in the storage hoppers 71 and 72 when the label side alignment part 79m and the main body part side alignment part 79n are aligned. It is formed at a position where the amount of fertilizer applied (kg / anti) is the normal specific gravity (for example, the specific gravity is about 0.9).

  The display label 79c configured as described above can be attached to the main body portion 79a by aligning the label side alignment portion 79m with the main body portion side alignment portion 79n, so that the attachment position can be aligned with the main body portion 79a. it can. Further, since the display label 79c is integrally formed, the entire display label 79c can be aligned by aligning at least one position. As a result, the alignment of the display label 79c can be performed more easily.

[Embodiment 2]
The seedling transplanting machine 1-2 according to the second embodiment has substantially the same configuration as the seedling transplanting machine 1-1 according to the first embodiment. However, when the traveling direction of the body changes greatly during the automatic traveling of the traveling vehicle body 2, the body is changed. It is characterized in that it stops. The seedling transplanter 1-2 according to the second embodiment is also characterized in that the angle of the seedling placement table 51 can be adjusted. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 11 is a side view showing a seedling transplanter according to the second embodiment. The seedling transplanter 1-2 according to the second embodiment, like the seedling transplanter 1-1 according to the first embodiment, sits on the seedling planting unit 50, the seedling planting device 60, and the control seat 28. And a brake pedal 13 that can be operated by a person. The seedling transplanter 1-2 according to the second embodiment further includes an electric cylinder 14 that can be switched to a state in which the brake pedal 13 is depressed, and a gyro sensor 19 that detects angular velocity.

  The seedling transplanter 1-2 according to the second embodiment configured as described above changes the traveling direction of the body to the extent that the distance between the adjacent row seedlings is greatly shifted during the automatic straight traveling of the traveling vehicle body 2 at a constant speed. When the gyro sensor 19 detects this, the hydraulic continuously variable transmission 16 is neutralized by switching to the state where the brake pedal 13 is depressed by the electric cylinder 14. When the hydraulic continuously variable transmission 16 is neutral, transmission of power from the engine 10 to the transmission case 18, the rear wheel gear case 22, the seedling planting device 60, and the fertilizer application 70 is interrupted, and the traveling vehicle body 2 travels. The planting work by the seedling planting device 60 and the fertilization work by the fertilizer application device 70 are interrupted. As a result, during the automatic straight traveling of the traveling vehicle body 2, for example, when the automatic straight traveling is interrupted without an operator's operation, the traveling vehicle body 2 travels with the aircraft traveling direction deviating from the straight traveling direction. Can be regulated. As a result, it is possible to prevent the gap between the adjacent row seedlings with respect to the row seedlings traveled by the traveling vehicle body 2 from being greatly shifted.

  FIG. 12 is a top view of the seedling transplanter shown in FIG. FIG. 13 is a diagram illustrating a main part of a seedling transplanting unit of the seedling transplanting machine illustrated in FIG. 11. In the seedling transplanter 1-2 according to the second embodiment, the seedling placing table 51 is vertically divided into two in the vertical direction. The seedling mounting table 51 includes an upper seedling mounting table 51a disposed above and a lower seedling mounting table 51b disposed below in the vertical direction. The upper seedling mounting table 51a is provided on the lower seedling mounting table 51b and is supported so as to be rotatable around a rotation shaft 51c parallel to the horizontal direction of the machine body. It is supported so as to be rotatable in the front-rear direction. The upper seedling placement stage 51a is configured to be capable of adjusting the angle in the longitudinal direction of the machine body relative to the lower seedling placement stage 51b by an angle switching lever 54 that switches the angle of the upper seedling placement stage 51a and an angle switching guide 55. . The angle switching lever 54 is provided on the top of the planting support frame 53. The angle switching guide 55 is formed with a plurality of recesses that engage with the angle switching lever 54 at intervals in the longitudinal direction of the machine body. The angle switching guide 55 is engaged with the angle switching lever 54 at a plurality of positions from the front to the rear of the angle switching guide 55. Is possible.

  When the engagement position of the angle switching lever 54 with respect to the angle switching guide 55 is switched to the front in the longitudinal direction of the machine body, the upper seedling mounting table 51a can be switched so that the front raising angle of the upper seedling mounting table 51a is reduced. Further, the upper seedling mounting table 51a can be switched so that the front raising angle of the upper seedling mounting table 51a is increased when the engagement position of the angle switching lever 54 with respect to the angle switching guide 55 is switched to the rear in the longitudinal direction of the machine body. .

  When the seedling transplanter 1-2 according to the second embodiment configured as described above places a mat-like seedling with a slippery soil on the seedling placing surface 52, the seedling transplanting machine 1-2 rises forward of the upper seedling placing stand 51a. By making the angle small, the downward movement of the mat-like seedling with soil can be suppressed. In addition, when placing a soiled mat-like seedling that is difficult to slip on the seedling placing surface 52, the forward raising angle of the upper seedling placing stand 51a is increased to move the soiled mat-like seedling downward. Can be encouraged. Accordingly, the mat-shaped seedling with soil that is slippery with respect to the seedling mounting surface 52 in the seedling mounting table 51 has a fast moving speed downward, and the mat-like shape with soil placed on the lower seedling mounting table 51b. It can suppress that a seedling will be crushed. Moreover, it can suppress that the mat-like seedling with a soil which is hard to slip with respect to the seedling mounting surface 52 is not supplied to the seedling planting apparatus 60 below. As a result, the mat-like seedling with soil can be sent smoothly, and the workability of the planting work can be improved.

[Embodiment 3]
The seedling transplanting machine 1-3 according to the third embodiment has substantially the same configuration as the seedling transplanting machine 1-1 according to the first embodiment, but is characterized in that a mat-like seedling with soil is sent by a roller instead of a belt. is there. The seedling transplanter 1-3 according to the third embodiment is also characterized in that dense planting and sparse planting can be changed with the same gear. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 14 is a side view showing a seedling transplanter according to the third embodiment. FIG. 15 is a top view of the seedling transplanter shown in FIG. Similarly to the seedling transplanter 1-1 according to the first embodiment, the seedling transplanter 1-3 according to the third embodiment includes a seedling planting unit 50 and a seedling planting device 60.

  The seedling transplanting machine 1-3 according to the third embodiment includes a seedling feeding roller 56 that feeds a mat-like seedling with a soil placed on the upper part of the seedling placing table 51 toward the lower part of the seedling placing table 51, and a seedling feeding roller. And a resistance switching lever 57 for switching 56 rotational resistances. The seedling feed roller 56 is a rotating body that is formed in the same width as the soiled mat-like seedling in the left-right direction of the machine body and formed in a circular shape when viewed from the left-right direction of the machine body. The seedling feeding roller 56 is supported by the seedling mounting table 51 so as to be rotatable around an axis parallel to the horizontal direction of the machine body. The seedling feeding roller 56 is set to a protruding amount capable of feeding the seedling with respect to the seedling placing surface 52. The seedling feeding roller 56 is disposed at a position corresponding to the placement position of the mat-like seedling with soil on the seedling placement surface 52. In the third embodiment, a plurality of seedling feed rollers 56 (eight in the third embodiment) are arranged on the upper portion of the seedling placing table 51 at intervals in the horizontal direction of the machine body.

  A resistance switching lever 57 that switches the rotational resistance of the seedling feeding roller 56 is disposed on the opposite side of the seedling placement surface 52 above the seedling placement table 51. The resistance switching lever 57 is supported by a lever support portion 58 so as to be rotatable in the vertical direction of the machine body. The resistance switching lever 57 is configured to be able to switch the rotational resistance of the seedling feeding roller 56 in accordance with a turning operation in the vertical direction.

  Specifically, a brake plate 59 that contacts the seedling feeding roller 56 and applies resistance is provided behind the lever switching portion 57 in the resistance switching lever 57 in the longitudinal direction of the machine body. The amount (area) of contact of the brake plate 59 with the seedling feeding roller 56 is changed by the rotation operation of the resistance switching lever 57. For example, when the resistance switching lever 57 is turned downward, the contact amount between the brake plate 59 and the seedling feeding roller 56 is increased and the rotational resistance is increased. Further, when the resistance switching lever 57 is turned upward, the contact amount between the brake plate 59 and the seedling feeding roller 56 is reduced, and the rotational resistance is weakened.

  In addition, a lever support portion 58 is provided in the left-right direction of the body of the seedling mounting table 51 (see FIG. 15), or a plurality of lever support portions 58 are provided at intervals in the left-right direction of the body. When the width is the same, the rotational resistance of the plurality of seedling feeding rollers 56 can be switched at the same time, so that the work efficiency is improved.

  In addition, it is preferable that the brake plate 59 is formed with the material which has the intensity | strength which can contact the seedling feed roller 56 and can apply resistance. For example, if the brake plate 59 is formed of an elastic material such as rubber, the seedling feeding roller 56 is not easily damaged, and even if an overload is applied to the brake plate 59, the brake plate 59 is deformed and escapes. Is prevented.

  In the seedling transplanter 1-3 according to the third embodiment configured as described above, since the seedling feeding roller 56 is disposed on the upper part of the seedling placing table 51, the seedling transplanting machine 1-3 has a soil that is difficult to slip with respect to the seedling placing surface 52. Even a mat-like seedling can be sent downward as the seedling feed roller 56 rotates. In addition, since the rotation resistance of the seedling feeding roller 56 can be switched by the resistance switching lever 57, in the case of a mat-like seedling with soil that is slippery with respect to the seedling placing surface 52, the rotational resistance of the seedling feeding roller 56 is increased. Thereby, it can suppress that the moving speed to the downward direction of a mat-like seedling with a soil is large, and is crushed. As a result, since the rotation resistance of the seedling feeding roller 56 can be switched according to the slipperiness of the mat-like seedling with soil placed on the seedling placement surface 52, the seedling feeding suitable for the mat-like seedling with soil is performed. Can do.

  Further, since the seed mat feeding seedling is fed by the seedling feeding roller 56, the rotating endless belt mechanism for feeding the mat mat seedling with seeding can be omitted, and by omitting the rotating endless belt mechanism, Simplification can be achieved. The seedling feeding roller 56 is less expensive than the rotating endless belt mechanism, and the cost of the machine body can be suppressed.

  FIG. 16 is a diagram showing a main part of the seedling transplanting device of the seedling transplanting machine shown in FIG. FIG. 17 is a diagram showing a main part of the seedling planting apparatus shown in FIG. In the seedling transplanting machine 1-3 according to the third embodiment, the seedling planting device 60 includes an inter-strain switching mechanism 68 that can switch the seedling planting interval between “normal” and “sparse planting”. Here, among “normal” and “sparse planting” which are switched by the inter-strain switching mechanism 68, “normal” is to plant about 50 to 80 strains per tsubo, and “sparse planting” is per tsubo About 37 to 47 strains are to be planted.

  The stock change mechanism 68 includes an input shaft 68b to which driving force is transmitted from the transmission case 18, an input gear 68c to which driving force is transmitted from the input shaft 68b, and an output gear 68d to which driving force is transmitted from the input gear 68c. And an output shaft 68e to which a driving force is transmitted from the output gear 68d.

  The input gear 68c has a connecting portion 68h connected to a joint 68g that rotatably connects the input shaft 68b and the input gear 68c at a position eccentric from the radial center of the input gear 68c. The joint 68g is configured as a universal joint. The input gear 68c is supported in the case 68a so as to be rotatable in the circumferential direction, and is supported so as to be rotatable around the input side shaft portion 68k formed in a spherical shape. The input gear 68c has a shaft hole 68i through which the input side shaft portion 68k can reciprocate in the axial direction. The shaft hole 68i is formed so as to be eccentric from the radial center of the input gear 68c from the opposite side of the connecting portion 68h toward the connecting portion 68h in the axial direction. The shaft hole 68i in the third embodiment is opened at the center in the radial direction of the input gear 68c on the opposite side of the connecting portion 68h in the axial direction, and the diameter of the input gear 68c on the connecting portion 68h side in the axial direction. A hole is formed so as to be eccentric to the opposite side of the connecting portion 68h across the center of the direction. Thereby, the position of the radial direction of the rotating shaft of the input gear 68c can be switched between the center position and the eccentric position by the input side shaft portion 68k reciprocating in the axial direction.

  The output gear 68d has a connecting portion 68p connected to a joint 68n that rotatably connects the output shaft 68e and the output gear 86d at a position eccentric from the radial center of the output gear 68d. The joint 68n is configured as a universal joint. The output gear 68d is supported in the case 68a so as to be rotatable in the circumferential direction, and is supported so as to be rotatable around the output side shaft portion 68m formed in a spherical shape. The output gear 68d has a shaft hole 68j through which the output side shaft portion 68m can reciprocate in the axial direction. The shaft hole 68j is formed to be decentered from the radial center of the output gear 68d as it goes from the opposite side of the connecting portion 68p to the connecting portion 68p side in the axial direction. The shaft hole 68j in the third embodiment is opened at the center in the radial direction of the output gear 68d on the opposite side of the connecting portion 68p in the axial direction, and the diameter of the output gear 68d on the connecting portion 68p side in the axial direction. A hole is formed so as to be eccentric to the opposite side of the connecting portion 68p across the center of the direction.

  Each of the input side shaft portion 68k and the output side shaft portion 68m is provided on the switching member 68f. The switching member 68f supports the input side shaft portion 68k and the output side shaft portion 68m so as to be capable of reciprocating in the axial direction with respect to the shaft holes 68i and 68j. When the switching member 68f is switched by moving the position of the input side shaft portion 68k and the output side shaft portion 68m in the axial direction from the position opposite to the connecting portions 68h, 68p to the position on the connecting portions 68h, 68p side. The rotation centers of the input gear 68c and the output gear 68d can be switched from the radial center position to the eccentric position. Further, the switching member 68f moves the positions of the input side shaft portion 68k and the output side shaft portion 68m in the axial direction from the positions on the connecting portions 68h and 68p side to the positions opposite to the connecting portions 68h and 68p. By switching, the rotation center of the input gear 68c and the output gear 68d can be switched from the eccentric position to the center position in the radial direction. Further, the switching member 68f can be operated by, for example, a stock switching lever (not shown) disposed at a position where an operator seated on the control seat 28 can operate.

  The inter-stock switching mechanism 68 configured as described above can switch the input gear 68c and the output gear 68d to the standard gear by switching the rotation center of the input gear 68c and the output gear 68d to the center position in the radial direction. When the input gear 68c and the output gear 68d act as standard gears, the output shaft 68e rotates at the same speed as the input shaft 68b, and the implantation rod 62 and the rotary case 63 rotate at the “normal” planting timing. Then, the seedlings placed on the seedling placement table 51 are sequentially taken and are planted on the field at regular intervals.

  Further, the inter-stock switching mechanism 68 can switch the input gear 68c and the output gear 68d to the eccentric gear by switching the rotation center of the input gear 68c and the output gear 68d to the radial eccentric position. When the input gear 68c and the output gear 68d act as eccentric gears, the output shaft 68e rotates at a non-uniform speed, and the implantation rod 62 and the rotary case 63 also rotate at a timing different from “normal” planting. Become. Then, the seedlings placed on the seedling placing stand 51 are taken at intervals, and are planted in the field at intervals from “normal”.

  Since the seedling transplanter 1-3 according to the third embodiment configured as described above can switch the input gear 68c and the output gear 68d between the normal gear and the eccentric gear, a plurality of standard gears and a plurality of eccentric gears can be used. It is possible to omit the stock-to-stock switching clutch mechanism. Thus, by omitting the stock-to-stock switching clutch mechanism, it is possible to simplify the machine structure and reduce the number of parts.

  Further, since each of the input side shaft portion 68k and the output side shaft portion 68m can reciprocate in the axial direction with respect to the shaft holes 68i and 68j, the input side shaft portion 68k and the output side shaft portion 68m in the axial direction can be moved. An arbitrary eccentricity can be set by adjusting the position.

1-1, 1-2, 1-3 seedling transplanter 2 traveling vehicle body 51 seedling placing table 60 seedling planting device 70 fertilizer 71, 72 storage hopper 73, 74 lid portion 73a, 74a receiving portion 73b, 74b discharge lid portion 73c, 74c Fertilizer guide member 73e, 74e Machine body inner side edge part (one end side edge part)
73f, 74f Aircraft outer side edge (the other edge side edge, the left and right edge of the machine)
76 Fertilizer feeding device 78b Fertilizer drive rod 78c Switching arm 79 Fertilizer application switching device 79c Display label

Claims (6)

A seedling mounting table for mounting seedlings on the rear of the traveling vehicle body;
A seedling planting device that is disposed at a lower portion of the seedling placement table, takes seedlings from the seedling placement table, and plants the seedlings in a field;
A fertilizer supply device for supplying fertilizer to the field;
With
The fertilizer application includes a storage hopper that stores fertilizer, and a lid that is supported to be rotatable in the longitudinal direction of the body relative to the storage hopper and can be opened and closed.
The storage hopper is supported so as to be rotatable in the longitudinal direction of the vehicle body with respect to the traveling vehicle body,
The lid portion includes a receiving portion that receives fertilizer in the storage hopper, and a discharge lid portion that is disposed at an end of the lid portion in the left-right direction of the body and can be opened and closed with respect to the receiving portion. Characteristic seedling transplanter. The lid portion is formed in a bowl shape that becomes deeper from the one end side end in the left-right direction of the body toward the other end.
The seedling transplanter according to claim 1, wherein the discharge lid portion is disposed at the other end side end portion of the lid portion. The seedling transplanter according to claim 2, wherein a fertilizer guide member that guides the fertilizer received by the receiving portion down to the outside of the machine body is disposed at the other end of the lid portion. . Each of the storage hopper and the lid is divided into left and right in the left and right direction of the fuselage,
The lid is formed in a bowl shape that becomes deeper from the inner side edge of the aircraft in the lateral direction of the aircraft toward the outer side edge of the aircraft,
The seedling transplanter according to any one of claims 1 to 3, wherein the discharge lid portion is disposed at an outer end portion of the body of the lid portion. The fertilizer feeding device includes a fertilizer feeding device that feeds fertilizer in the storage hopper, a fertilizer driving rod that transmits a driving force to the fertilizer feeding device, and an attachment position of the fertilizer driving rod in the longitudinal direction of the machine body. A switching arm that switches the amount of fertilizer applied by the feeding device to “normal” or “small amount”, and
The attachment position of the body front-back direction of the said fertilization drive rod with respect to the said switching arm is adjustable according to the specific gravity of the fertilizer stored by the said storage hopper. Any one of Claim 1 to 4 characterized by the above-mentioned. The seedling transplanter described. The fertilizer has a fertilizer application switching device for switching the fertilizer application amount by the fertilizer feeding device,
The fertilizer application amount switching device is provided with a display label indicating the fertilizer application amount by the fertilizer supply device,
The seedling transplanter according to claim 5, wherein the display label is adjustable in an attachment position with respect to the fertilizer application amount switching device.

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