JP6792873B2 - Fertilizer applicator - Google Patents

Description

The present invention relates to a fertilizer applicator.

Conventionally, a fertilizer applicator having a driving unit for traveling is known. Fertilizers are used to supply fertilizer to crops growing in the field. By making the fertilizer applicator run by itself using a drive unit such as an engine, the burden on the operator can be greatly reduced. A fertilizer applicator having a driving unit for traveling is described in, for example, Patent Document 1.

Further, in the topdressing machine (fertilizer application machine) described in Patent Document 1, as shown in FIG. 6, the fertilizer is fed out in the feeding device 30 (fertilizer applying section) including the fertilizer hopper 34 and the feeding section 31 as a part of the traveling section. The rotational power of the ground ring 60 is used as a drive source. Specifically, the rotational power of the ground ring 60 is transmitted to the feeding portion 31 by using a sprocket and a chain. Therefore, the relative positional relationship between the installation wheel 60 and the feeding portion 31 cannot be changed. That is, the relative positional relationship between the traveling portion and the fertilizer application portion cannot be changed.

Japanese Patent No. 4728145

However, in order to apply fertilizer to a crop growing in a field at a desired position, it is preferable that the fertilizer outlet in the fertilizer applicator is arranged at a height as close as possible to the crop. For this reason, when topdressing multiple types of crops or when topdressing crops that gradually change the height of ridges such as green onions, the height of the fertilizer applicator to the running part is changed. It is preferable to be able to do it.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique capable of easily changing the height of a fertilizer application portion in a fertilizer application machine.

In order to solve the above problems, the first invention of the present application is a fertilizer applicator that supplies fertilizer to a field, a driving unit that outputs power, a traveling unit that travels forward based on the power, and the fertilizer. A fertilizer application unit that supplies the fertilizer to the field, a height adjustment unit that adjusts the height of the fertilizer application unit with respect to the traveling unit, and the power output from the driving unit of the traveling unit and the fertilizer application unit, respectively. The fertilizer application unit has a power transmission unit that transmits the power to the hopper, and a hopper having a supply port that stores the fertilizer and opens downward, and a supply path that extends laterally and downward from the supply port. The power transmission unit has a feeding unit that drives based on the power output by the drive unit and supplies the fertilizer from the hopper to the supply path, and the power transmission unit receives the rotational power output by the drive unit. It has a power conversion unit that converts reciprocating kinetic force and a control cable that transmits the power from the input end to the output end, and the input end has the reciprocating output from the power conversion unit. The kinetic force is input, and the output end portion outputs the reciprocating kinetic force to the feeding portion.

The second invention of the present invention is the fertilizer application machine of the first invention, further including a switching lever for switching on / off of the supply of the fertilizer in the fertilizer application portion, the control cable is branched, and the first input end. It has two input end portions including a unit and a second input end portion and one output end portion, and the reciprocating motion force output from the power conversion unit is applied to the first input end portion. The fertilizer is input, the second input end is connected to the switching lever, and the feeding portion receives pulling power from at least one of the first input end and the second input end. When the input of pulling power is stopped at both the first input end and the second input end, the fertilizer is supplied.

The third invention of the present invention is the fertilizer application machine of the second invention, in which the hopper has two of the supply ports, the supply path includes a first supply path and a second supply path, and the feeding portion. Includes a first feeding section for supplying the fertilizer to the first supply path and a second feeding section for supplying the fertilizer to the second supply path, and the control cable has the output end portion thereof. The switching lever includes the first cable connected to the first feeding portion and the second cable whose output end is connected to the second feeding portion, and the switching lever is the second input end of the first cable. A first switching lever to which the portion is connected and a second switching lever to which the second input end portion of the second cable is connected are included.

The fourth invention of the present application is the fertilizer applicator according to any one of the first invention to the third invention, further comprising a handle having a traveling portion and a grip portion arranged behind the fertilizing portion, and the traveling portion. Has a ground contact portion made of wheels or crawlers and a stand that can be switched between a first position and a second position, and when the stand is arranged in the first position, the stand is in the same posture as the running state. When the vertical position of the lower end of the stand and the vertical position of the lower end of the ground contact portion substantially coincide with each other and the stand is arranged at the second position, the lower end of the stand is in the same posture as the running state. Is arranged above the lower end of the ground contact portion, and the vertical position of the lower end portion of the stand and the vertical position of the lower end portion of the ground contact portion substantially coincide with each other in a backward tilted posture.

According to the first to fourth inventions of the present application, power is transmitted by using a control cable in the power transmission unit. As a result, even when the relative positions of the fertilizer application unit with respect to the traveling unit and the driving unit are changed, it is not necessary to perform any operation on the power transmission unit. Therefore, the height of the fertilizer application portion can be easily changed.

In particular, according to the second invention of the present application, the control cable has a branch and has two input ends. Thereby, it is possible to easily switch whether or not fertilization is performed by using the switching lever.

In particular, according to the third invention of the present application, shutters are provided for each of the two supply paths. Then, the drive of the two shutters can be switched by using each of the two switching levers. Thereby, the supply path for fertilization can be selected from the two supply paths by a simple operation.

In particular, according to the fourth invention of the present application, by setting the stand in the first position, the fertilizer applicator can be stabilized without tilting. Therefore, refueling and the like can be performed in a stable state. Further, by setting the stand in the second position, the fertilizer applicator can be stabilized in a backward tilted state. Therefore, it is possible to supply fertilizer to the hopper from the rear in a stable state.

It is a left side view of the fertilizer application machine which concerns on one Embodiment. It is a right side view of the fertilizer application machine which concerns on one Embodiment. It is a rear side view of the fertilizer application machine which concerns on one Embodiment. It is a partial left side view of the fertilizer application machine which concerns on one Embodiment. It is a left side view of the fertilizer application machine which concerns on one Embodiment. It is a figure which showed the conventional fertilizer application machine.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the present application, the traveling direction of the fertilizer applicator is referred to as "forward direction", and the direction opposite to the traveling direction of the fertilizer applicator is referred to as "rear direction". Further, in the present application, the vertical direction is defined according to the posture when the fertilizer applicator is used (running).

<1. First Embodiment>
FIG. 1 is a left side view of the fertilizer applicator 1. FIG. 2 is a right side view of the fertilizer applicator 1. FIG. 3 is a side view of the fertilizer application machine 1 as viewed from the rear. In FIG. 3, the display of the handle 4 and the power transmission unit 7 is omitted. The fertilizer application machine 1 is a device that supplies granular fertilizer to the field 9.

As shown in FIGS. 1 and 2, the fertilizer application machine 1 includes a traveling unit 2, a driving unit 3, a handle 4, a fertilizer application unit 5, a height adjusting unit 6, and a power transmission unit 7.

The traveling unit 2 has a rear wheel 21 which is a starting wheel, a front wheel 22 which is a floating wheel, and a crawler belt 23 which surrounds the rear wheel 21 and the front wheel 22. The rear wheel 21, the front wheel 22, and the crawler belt 23 form a ground contact portion that is a so-called crawler (track). The ground contact portion of the traveling portion 2 that contacts the field 9 may be a wheel instead of the crawler. An input sprocket 211 and a cam 212 that rotate with the shaft 20 are provided on the side of the shaft 20 of the rear wheel 21.

In the present embodiment, by using the crawler for the traveling portion 2, the contact area of the traveling portion 2 with respect to the field 9 becomes larger than that in the case where the wheels are used for the traveling portion 2. As a result, even when the field is soft, the fertilizer application machine 1 is unlikely to sink into the field 9. Therefore, the running performance of the fertilizer application machine 1 can be improved, and the burden on the operator in the fertilizer application work can be reduced.

The drive unit 3 outputs rotational power. The drive unit 3 is an engine. The drive unit 3 outputs rotational power from the output sprocket 31 provided on the side portion. The drive unit 3 is provided with a fuel tank 32 for storing fuel. In the present embodiment, the drive unit 3 is arranged behind and above the traveling unit 2.

The handle 4 has a grip portion 41, an arm 42 connecting the grip portion 41 and the traveling portion 2, and a switching lever 43. The grip portion 41 is arranged behind the traveling portion 2, the driving portion 3, and the fertilizer applying portion 5. The arm 42 extends rearwardly and upwardly from the traveling portion 2. The switching lever 43 is fixed around the grip portion 41. In the present embodiment, the handle 4 has two switching levers 43, a first switching lever 431 and a second switching lever 432. Each switching lever 43 can be switched between an on state and an off state.

The fertilizer application portion 5 has a base portion 50, a hopper 51, two supply paths 52, and two feeding portions 53. The hopper 51, the supply path 52, and the feeding portion 53 are fixed to the base portion 50, respectively. The base portion 50 is supported by the height adjusting portion 6.

The hopper 51 is a container for storing fertilizer. The hopper 51 is placed on the base portion 50. The hopper 51 has a bottom portion in which the cross-sectional area decreases toward the bottom. The hopper 51 has a first supply port 511 and a second supply port 512 that open downward at the bottom thereof. Further, the hopper 51 has a partition plate 510 (see FIG. 4) that divides the inside of the hopper 51 in the left-right direction in the vicinity of the bottom portion. The first supply port 511 is arranged on the right side of the partition plate 510, and the second supply port 512 is arranged on the left side of the partition plate 510.

As shown in FIG. 3, the two supply paths 52 include a first supply path 521 connected to the first supply port 511 and a second supply path 522 connected to the second supply port 512. The supply passage 52 has a flexible pipe 523, a cylindrical pipe 524, a guide portion 525, and a support arm 526, respectively.

One end of the flexible pipe 523 is connected to any of the supply ports 511, 512 and extends downward and laterally. Here, the "lateral direction" is the right direction in the first supply path 521 and the left direction in the second supply path 522. A part of the cylindrical pipe 524 is arranged so as to overlap the other end side of the flexible pipe 523. The cylindrical pipe 524 extends further downward and laterally from the flexible pipe 523. The guide portion 525 is arranged at the tip of the cylindrical pipe 524. The guide portion 525 is a member having a U-shaped cross section extending downward in a plate shape on the front side, the outside side, and the rear side of the tip end portion of the cylindrical pipe 524, respectively. The fertilizer that has fallen in the cylindrical pipe 524 is supplied by the guide portion 525 directly below the tip portion of the cylindrical pipe 524. Therefore, fertilizer can be supplied to a desired position.

The support arm 526 may be a member that supports the cylindrical pipe 524. One end of the support arm 526 is rotatably fixed to the base portion 50. The other end of the support arm 526 is a holding portion for holding the cylindrical pipe 524. Since the angle of the support arm 526 is variable, the angle of the entire supply path 52 can be changed. Further, the support arm 526 can change the holding position of the cylindrical pipe 524. Therefore, the length of the entire supply path 52 can be changed by adjusting the amount of overlap between the flexible pipe 523 and the cylindrical pipe 524. In this way, the fertilizer supply height and supply position can be adjusted by changing the angle and length of the entire supply path 52.

The rotational power output from the drive unit 3 is converted into reciprocating motion force and transmitted to the feeding unit 53 via the power transmission unit 7. FIG. 4 is a partial left side view of the fertilizer applicator 1 showing the periphery of the feeding portion 53. As shown in FIGS. 2 and 4, the feeding portion 53 includes a first shutter 531 and a second shutter 532 arranged inside the hopper 51, and a first rotating plate 533 and a first rotating plate 533 arranged outside the hopper 51. It has two rotating plates 534, an opening degree adjusting unit 535, and a guide plate 536.

The first shutter 531 of the hopper 51 is a plate-shaped member that opens and closes the first supply port 511. The second shutter 532 is a plate-shaped member that opens and closes the second supply port 512. The first rotating plate 533 and the second rotating plate 534 are each connected to a control cable 73 described later in the power transmission unit 7. Then, the first rotating plate 533 and the second rotating plate 534 reciprocate between the closed position and the open position by the reciprocating motion force input from the control cable 73, respectively.

The first shutter 531 moves between the open state and the closed state in conjunction with the movement of the first rotating plate 533. Specifically, when the first rotating plate 533 is arranged in the open position, the first shutter 531 opens the first supply port 511 and the first rotating plate 533 is arranged in the closed position. , The first supply port 511 is closed. Further, the second shutter 532 moves between the open state and the closed state in conjunction with the movement of the second rotating plate 534. Specifically, when the second rotating plate 534 is arranged in the open position of the second shutter 532, the second supply port 512 is opened and the second rotating plate 534 is arranged in the closed position. , The second supply port 512 is closed.

A spring that connects the base portion 50 and each of the rotating plates 533 and 534 exerts a tensile force on the rotating plate 533 in the direction of rotating to the open position. On the other hand, when power is received from the control cable 73 in the pulling direction, the rotating plates 533 and 534 rotate to the closed positions, respectively.

As shown in FIGS. 2 and 3, the opening degree adjusting portion 535 is arranged on the side surface of the hopper 51 on the side opposite to the first rotating plate 533 and the second rotating plate 534. The angle of the opening degree adjusting portion 535 can be changed by fitting the convex portion of the opening degree adjusting portion 535 into any of the plurality of notches provided in the guide plate 536. Depending on the angle of the opening degree adjusting unit 535, the opening degree of the first supply port 511 and the second supply port 512 when the first shutter 531 and the second shutter 532 are in the most open open state can be adjusted.

The height adjusting portion 6 has a fertilizer application portion support column 61 extending upward from the traveling portion 2 and a fixing bolt 62 for fixing the base portion 50 of the fertilizer application portion 5. The base portion 50 can be fixed to a desired height with respect to the fertilizer application portion support column 61 by the fixing bolt 62. Therefore, the height of the fertilizer application portion 5 can be changed by loosening the fixing bolt 62, shifting the position of the base portion 50 in the vertical direction, and tightening the fixing bolt 62 again. In this way, the relative height of the fertilizer application portion 5 with respect to the running portion 2 can be changed by a simple operation.

The power transmission unit 7 transmits the power output from the drive unit 3 to each of the traveling unit 2 and the fertilizer application unit 5. Specifically, the power transmission unit 7 has a first transmission unit 701 and a second transmission unit 702. The first transmission unit 701 transmits the rotational power output from the drive unit 3 to the rear wheels 21. The second transmission unit 702 converts the rotational power transmitted to the rear wheel 21 into a reciprocating motion force and transmits it to the fertilizer application unit 5.

The first transmission unit 701 is composed of an output sprocket 31 of the drive unit 3, an input sprocket 211 of the traveling unit 2, and an annular chain 71. The chain 71 surrounds the output sprocket 31 and the input sprocket 211. Further, the chain 71 is meshed with the tooth portion (protruding portion) of the output sprocket 31 and the input sprocket 211. When the drive unit 3 is driven, the output sprocket 31 rotates, so that the chain 71 rotates around the output sprocket 31 and the input sprocket 211. Therefore, the input sprocket 211 rotates, and the shaft 210 of the rear wheel 21 rotates. As a result, the traveling unit 2 travels forward. The first transmission unit 701 is covered with a casing 79. In FIG. 1, the casing 79 is shown by a broken line.

The second transmission unit 702 includes a cam 212, a cam follower 72, and a control cable 73. The cam 212 rotates with the rotation of the shaft 210 of the rear wheel 21. The cam 212 is a disc cam having five concave portions and convex portions around it.

The cam follower 72 rotates about the follower shaft 720. The cam follower 72 has a first end 721 having a roller in contact with the cam 212 and a second end 722 to which the control cable 73 is connected. When the cam follower 72 rotates in the direction in which the first end portion 721 moves forward, the second end portion 722 moves backward. Further, when the cam follower 72 rotates in the direction in which the first end portion 721 moves rearward, the second end portion 722 moves forward. The first end portion 721 moves forward when it comes into contact with the convex portion of the cam 212, and moves backward when it comes into contact with the concave portion of the cam 212. Therefore, while the cam 212 rotates once, the first end portion 721 reciprocates five times in the front-rear direction. Therefore, while the cam 212 rotates once, the second end portion 722 also reciprocates five times in the front-rear direction. As described above, the cam 212 and the cam follower 72 form the power conversion unit 70 that converts the rotational power output by the drive unit 3 into the reciprocating motion force.

The second transmission unit 702 of the present embodiment has two control cables 73. Specifically, the two control cables 73 include a first cable 74 and a second cable 75. The control cable 73 is composed of an inner cable and an outer casing that covers the inner cable, respectively. The inner cable is movable in the longitudinal direction inside the outer casing. The outer casing of the control cable 73 is fixed to each part of the vehicle body of the fertilizer applicator 1.

In the present embodiment, the inner cable of the control cable 73 has an output end portion 731, a first input end portion 732, and a second input end portion 733. That is, the control cable 73 has a branched shape so that one output end portion 731 and two input end portions 732 and 733 are connected. Specifically, there is one cable from the output end 731 to the branch point 734, and two cables from the branch point 734 to the first input end 732 and the second input end 733. Branch to the cable.

The control cable 73 transmits the power input to the input ends 732 and 733 to the output end 731. The first input end portion 732 is fixed to the second end portion 732 of the cam follower 72 of the power conversion unit 70. As a result, the reciprocating motion force output from the power conversion unit 70 is input to the first input end portion 732. The second input end portion 733 is fixed to the switching lever 43. The output end portion 731 is attached to any of the rotating plates 533 and 534 of the feeding portion 53. As a result, the output end portion 731 outputs the reciprocating motion force to the feeding portion 53.

More specifically, the output end portion 731 of the first cable 74 is fixed to the first rotating plate 533. The output end 731 of the second cable 75 is fixed to the second rotating plate 534. Both the first input end portion 732 of the first cable 74 and the first input end portion 732 of the second cable 75 are fixed to the second end portion 732 of the cam follower 72. The second input end portion 733 of the first cable 74 is fixed to the first switching lever 431. The second input end portion 733 of the second cable 75 is fixed to the second switching lever 431.

With such a configuration, the reciprocating motion force output from the cam follower 72 of the power conversion unit 70 is input to the first input end portion 732 of the first cable 74 and the second cable 75, respectively. When the reciprocating force output from the cam follower 72 is the pulling direction power, the pulling direction power is input to the first input end portion 732. On the other hand, when the reciprocating force output from the cam follower 72 is the pushing direction power, no tension is applied between the first input end portion 732 and the branch portion 734. Further, when the switching lever 43 connected to the second input end portion 733 is in the off state, the pulling direction power is input to the second input end portion 733. On the other hand, when the switching lever 43 connected to the second input end 733 is in the on state, no tension is applied between the second input end 733 and the branch 734 of the first cable 74.

When the pulling direction power is input from at least one of the first input end portion 732 and the second input end portion 733 in the first cable 74, the pulling direction power is output from the output end portion 731. Then, the first rotating plate 533 connected to the output end portion 731 is arranged at the closed position. Therefore, the first shutter 531 is closed, and the supply of fertilizer to the first supply path 521 is stopped. That is, when the first switching lever 431 is in the off state or the first switching lever 431 is in the on state and the reciprocating motion force output from the cam follower 72 to the first input end 732 is the pulling direction power. The supply of fertilizer to 1 supply path 521 is stopped.

On the other hand, in the first cable 74, when the input of the pulling direction power is stopped at both the first input end portion 732 and the second input end portion 733, the pulling direction from the output end portion 731 to the first rotating plate 533 The power output is stopped. Then, the first rotating plate 533 is arranged at the open position, and the first shutter 531 is opened. Therefore, fertilizer is supplied to the first supply channel 521. That is, when the first switching lever 431 is in the on state and the reciprocating motion force output from the cam follower 72 to the first input end portion 732 is the pushing direction power, fertilizer is supplied to the first supply path 521.

That is, if rotational power is output from the drive unit 3 and the first switching lever 431 is turned on, the first shutter 531 is periodically opened and closed, and fertilizer is supplied from the first supply path 521 to the field 9. Will be done.

Similarly, in the second cable 75, when the pulling direction power is input from at least one of the first input end portion 732 and the second input end portion 733, the pulling direction power is output from the output end portion 731. Then, the second rotating plate 534 connected to the output end portion 731 is arranged at the closed position. Therefore, the second shutter 532 is closed, and the supply of fertilizer to the second supply path 522 is stopped. That is, when the second switching lever 432 is in the off state or the second switching lever 432 is in the on state and the reciprocating motion force input from the cam follower 72 to the first input end portion 732 is the pulling direction power. 2 The supply of fertilizer to the supply channel 522 is stopped.

On the other hand, in the second cable 75, when the input of the pulling direction power is stopped at both the first input end portion 732 and the second input end portion 733, the pulling direction from the output end portion 731 to the second rotating plate 534 The power output is stopped. Then, the second rotating plate 534 is arranged in the open position, and the second shutter 532 is opened. Therefore, fertilizer is supplied to the second supply channel 522. That is, when the second switching lever 432 is in the on state and the reciprocating motion force output from the cam follower 72 to the first input end portion 732 is the pushing direction power, fertilizer is supplied to the second supply path 522.

That is, if rotational power is output from the drive unit 3 and the second switching lever 432 is turned on, the second shutter 532 opens and closes periodically, and fertilizer is supplied from the second supply path 522 to the field 9. Will be done.

In this way, the power transmission unit 7 transmits the power using the control cable 73. As a result, even when the relative positions of the fertilizer application unit 5 with respect to the traveling unit 2 and the drive unit 3 are changed, the function of the power transmission unit can be maintained without any operation on the power transmission unit 7. Therefore, the height of the fertilizer application portion 5 can be easily changed.

Further, in the present embodiment, the control cable 73 has a branch. By using the control cable 73 having two input ends 732 and 733, the operator can easily switch whether or not fertilization is performed by using the switching lever 43.

Further, in the present embodiment, shutters 531 and 532 are provided for each of the two supply paths 521 and 522. Then, the drive of the two shutters 531 and 532 can be individually switched by using the two switching levers 431 and 432, respectively. As a result, the supply path 52 for fertilization can be selected from the two supply paths 521 and 522 with a simple operation. That is, it is possible to easily switch between the one for one and the one for two.

The traveling unit 2 of the present embodiment has a stand 24 near the rear portion of the rear wheel 21. The stand 24 can be switched between the first position P1 (see FIGS. 1 and 2) and the second position P2 (see FIG. 5). FIG. 5 is a left side view of the fertilizer applicator 1 when the stand 24 is tilted backward with the second position P2.

When the stand 24 is arranged at the first position P1, as shown in FIGS. 1 and 2, in the same posture as in the running state, the vertical position of the lower end of the stand 24 and the vertical direction of the lower end of the crawler belt 23 The position is almost the same. That is, when the stand 24 is arranged at the first position P1, the lower end of the stand 24 comes into contact with the field 9 while the lower surface of the crawler belt 23 connecting the rear wheel 21 and the front wheel 22 is in contact with the field 9. , The tilting of the fertilizer application machine 1 is suppressed. When refueling the drive unit 3, the work can be performed in a stable state.

When the stand 24 is arranged at the second position P2, the lower end portion of the stand 24 is arranged above the lower end portion of the crawler belt 23 in the same posture as the running state. Therefore, when traveling and fertilizing, if the stand 24 is arranged at the second position P2, the stand 24 does not interfere with traveling.

Further, as shown in FIG. 5, when the stand 24 is arranged at the second position P2, in the posture in which the fertilizer applicator 1 is tilted backward, the vertical position of the lower end portion of the stand 24 and the lower end portion of the crawler belt 23 are located. The vertical position is almost the same. As a result, when the fertilizer application machine 1 is tilted backward, a part of the crawler belt 23 that covers the rear wheel 21 and the lower end portion of the stand 24 come into contact with the field 9 to stabilize the fertilizer application machine 1. it can.

When the fertilizer in the hopper 51 runs out during the fertilizer application operation, it is necessary to replenish the hopper 51 with fertilizer in the field 9. During the fertilizer application work, the traveling portion 2 of the fertilizer application machine 1 and the operator are in the recessed portion between the ridges, so that the hopper 51 can be replenished with fertilizer from the lateral direction (left-right direction) or from the front. It is necessary to cross the ridges, which increases the labor of work. Therefore, by arranging the stand 24 at the second position P2 and stabilizing the fertilizer applicator 1 in a backward tilted posture, fertilizer can be supplied into the hopper 51 from the rear. Therefore, fertilizer can be easily replenished.

<2. Modification example>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

The transplanter of the above embodiment is a fertilizer application machine that applies fertilizer to the ridges of two rows on the left and right, but the fertilizer application machine of the present invention is not limited to the one for two rows. For example, the present invention may be applied to a fertilizer application machine for Article 1, Article 4, and Article 8.

In addition, the transplanter of the above embodiment was for two rows, and it was possible to switch whether or not to apply fertilizer one row at a time. However, it may be a fertilizer application machine that applies fertilizer to ridges having more than three rows, and it may be possible to switch whether or not to apply fertilizer to each of a plurality of rows. For example, it may be a fertilizer application machine for three rows, and it may be possible to switch whether or not fertilization is applied to each of the right one row and the left two rows. Further, it may be a fertilizer application machine for four rows, and it may be possible to switch whether or not fertilization is applied to each of the right two rows and the left two rows.

Further, the fertilizer application machine of the above embodiment is a walking type self-propelled fertilizer application machine in which a worker applies fertilizer while walking, but the present invention is not limited to this. It may be a passenger-type self-propelled fertilizer applicator that can be used by workers.

Further, the detailed configuration of the transplanter may be different from the shape shown in each figure of the present application. Further, the elements appearing in the above-described embodiments and modifications may be appropriately combined as long as there is no contradiction.

1 Fertilizer application machine 2 Traveling unit 3 Drive unit 4 Handle 5 Fertilizer application unit 6 Height adjustment unit 7 Power transmission unit 9 Field 24 Stand 41 Grip unit 43 Switching lever 51 Hopper 52 Supply path 53 Feeding unit 71 Chain 72 Cam follower 73 Control cable 74 1 cable 75 2nd cable 212 cam 431 1st switching lever 432 2nd switching lever 511 1st supply port 512 2nd supply port 521 1st supply path 522 2nd supply path 531 1st shutter 532 2nd shutter 533 1st Moving plate 534 Second rotating plate 731 Output end 732 First input end 733 Second input end P1 First position P2 Second position

Claims (4)

A fertilizer applicator that supplies fertilizer to the field
The drive unit that outputs power and
A traveling unit that travels forward based on the power,
A fertilizer application section that supplies the fertilizer toward the field, and
A height adjusting portion for adjusting the height of the fertilizing portion with respect to the running portion,
A power transmission unit that transmits the power output from the drive unit to the traveling unit and the fertilizer application unit, respectively.
Have,
The fertilizer application part
A hopper that houses the fertilizer and has a supply port that opens downward.
A supply path extending laterally and downward from the supply port,
A feeding unit that is driven based on the power output from the driving unit and supplies the fertilizer from the hopper to the supply path.
Have,
The power transmission unit
A power conversion unit that converts the rotational power output by the drive unit into reciprocating motion, and
A control cable that transmits the power from the input end to the output end,
Have,
The reciprocating motion force output from the power conversion unit is input to the input end.
The output end is a fertilizer applicator that outputs the reciprocating motion force to the feeding portion. The fertilizer applicator according to claim 1.
Further having a switching lever for switching the supply of the fertilizer on and off in the fertilizer application section,
The control cable is branched and
Two said input ends, including a first input end and a second input end,
With one said output end
The reciprocating motion force output from the power conversion unit is input to the first input end.
The second input end is connected to the switching lever.
The payout portion is
When pulling power is input from at least one of the first input end and the second input end, the supply of the fertilizer is stopped.
When the input of pulling power is stopped at both the first input end and the second input end, the fertilizer is supplied.
Fertilizer applicator. The fertilizer applicator according to claim 2.
The hopper has two said supply ports.
The supply channel includes a first supply channel and a second supply channel.
The payout portion is
A first feeding section that supplies the fertilizer to the first supply path,
A second feeding section that supplies the fertilizer to the second supply path,
Including
The control cable
A first cable whose output end is connected to the first feeding portion, and
A second cable whose output end is connected to the second feeding portion, and
Including
The switching lever is
A first switching lever to which the second input end of the first cable is connected, and
A second switching lever to which the second input end of the second cable is connected, and
Including fertilizer application machine. The fertilizer applicator according to any one of claims 1 to 3.
Further having a handle having a grip located behind the traveling portion and the fertilizing portion
The traveling unit
With a ground contact consisting of wheels or crawlers,
A stand that can be switched between the first position and the second position,
Have,
When the stand is arranged at the first position, the vertical position of the lower end portion of the stand and the vertical position of the lower end portion of the ground contact portion substantially coincide with each other in the same posture as the running state.
When the stand is placed in the second position,
In the same posture as the running state, the lower end portion of the stand is arranged above the lower end portion of the ground contact portion.
A fertilizer applicator in which the vertical position of the lower end portion of the stand and the vertical position of the lower end portion of the ground contact portion substantially coincide with each other in a backward tilted posture.

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