JP2022016924A5 - - Google Patents

Description

The present invention relates to a transplanting machine for transplanting vegetable seedlings such as onions and lettuce into a field.

Conventionally, a transplanter equipped with a irrigation device for planting seedlings in a field with a planting device and supplying water at the same time as planting is known (Patent Document 1).

Japanese Unexamined Patent Publication No. 2018-201367

In the transplant machine of Patent Document 1, a water tank stay for receiving a water tank for storing water used by this irrigation device is provided on the upper surfaces of the left and right traveling transmission cases. The left and right running transmission cases are members that are transmitted to the running wheels, and have a strong structure in consideration of the load due to running and the load due to the load of the vehicle body, so they are suitable for instructing a heavy water tank. There is.

However, since the mounting base of the water tank stay is directly supported by fastening members such as bolts and nuts on one side of the side surface of the traveling transmission case, the water tank stay is supported by the load of the water tank in which water is stored. The problem of deformation and breakage can occur.

In addition, the water tank stay is configured to bend the ends of the front and rear and left and right support plates upward, respectively, and prevent the water tank from falling off at this upward bent portion. However, when attaching or detaching the water tank, water is used. Since it is necessary to lift the tank above the upper end of the upward bending portion, there is a problem that a large amount of labor is spent on the operator.

It is an object of the present invention to provide a transplanting machine in which a water tank storing water for irrigation can be stably placed and the water tank can be easily attached and detached in consideration of the conventional problems.

In order to solve the above problems, the following technical measures were taken.

The invention according to claim 1 is a planting device (20a, 20b) for planting seedlings in a traveling vehicle body (40) traveling in a field by a traveling wheel (44), and the planting device (20a, 20b). In the transplanting machine provided with the irrigation device (700) for supplying water to the seedlings planted by the plant and the tank stay (618) for loading the water tank (610) for storing the water used by the irrigation device (700). The stay (618) is a transplanting machine characterized in that it is mounted so as to project outward from the traveling wheel (44).

According to the second aspect of the present invention, an inner stay (611) is provided inside the machine body of the traveling transmission case (38) transmitted to the traveling wheel (44), and the upper end portion of the inner stay (611) is the traveling transmission case (the traveling transmission case (611). It is configured to protrude in the vertical direction from 38) , an outer stay (612) is provided on the outer side of the machine body of the traveling transmission case (38), and the upper end portion of the outer stay (612) is vertically oriented from the traveling transmission case (38). The receiving member (613) is provided on the upper portion of the outer stay (612), and the receiving member (613) is brought into contact with the mounting portion on the upper portion of the inner stay (611), and the tank stay (618) is provided. The transplanting machine according to claim 1 , wherein a connecting member (614) is provided in the connecting member (614), and the connecting member (614) can be attached to and detached from the receiving member (613) .

According to the third aspect of the present invention, the tank stay (618) is provided with a tank guard (615) that surrounds and supports the outer periphery of the water tank (610) on the connecting member (614), and the tank guard (615) is provided. ), A front-rear support plate (616) is provided between the rear side of the machine body and the front and rear of the connecting member (614), and a front support bending portion (616a) that bends upward is formed on the front side of the front-rear support plate (616). A rear support bending portion (616b) that bends upward is formed on the rear side, and left and right support plates (617) that support the left and right sides of the water tank (610) are attached to the front and rear support plates (616). The transplant machine according to claim 2 , wherein the support bent portions (617a) are formed on the left and right sides of the left and right support plates (616), respectively .

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According to the invention of claim 1, since the tank stay (618) supporting the water tank (610) can be arranged on the outside of the machine body of the traveling member (44), the traveling member (44) hinders the attachment / detachment of the water tank (610). Is prevented and work efficiency is improved .

According to the invention of claim 2, in addition to the effect of the invention of claim 1 , the receiving member (613) is supported on the upper side of the inner stay (611) and the outer stay (612), and the traveling transmission case (38) is provided. The strength of the receiving member (613) can be improved by straddling the two, and the connecting member (614) of the tank stay (618) may fall off or be damaged by the load of the water tank (610). Is prevented .

Further, since the connecting member (614) can be attached to and detached from the receiving member (613), the tank stay (618) can be removed to make the left and right width of the machine compact, and the storage space can be easily secured. Can be

According to the invention of claim 3, in addition to the effect of the invention of claim 2 , the water tank (610) is supported on the front side by forming the front support bending portion (616a) and the rear support bending portion (616b). Since the bent portion (616a) and the rear support bent portion (616b) can be taken out or loaded along the inclined surface, the height at which the water tank (610) is lifted can be suppressed, and labor can be reduced .

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Left side view of the transplanter Right side view of the transplanter Rear view of the transplant machine Front view of the transplant machine Floor plan of the transplanter Top view showing the area around the bumper on the front side of the aircraft Side view of the main part showing the periphery of the bumper on the front side of the aircraft Perspective view of the main part showing the periphery of the bumper on the front side of the aircraft Side view of the main part of the transplant machine equipped with an irrigation pump and a check valve Perspective view of the main part showing the control part, planting device, seedling supply device, etc. at the rear of the machine Perspective view of the main part of the porting machine showing the ridge sensor, boarding step, etc. Side view of the main part showing the state where the side support frame is attached Top view showing the state where the side support frame is attached Front view of the main part showing the support state of the water tank stay of another configuration example Side view of the main part showing the support state of the water tank stay of another configuration example Top view showing the support state of the water tank stay of another configuration example Perspective view of the main part showing the support state of the water tank stay of another configuration example Top view showing the state where the scraper is attached to the water tank stay of another configuration example. Side view of the main part showing the state where the scraper is attached to the water tank stay of another configuration example. Side view of the main part showing the support configuration of the water tank stay of another configuration example Front view of the main part showing the support configuration of the water tank stay of another configuration example

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 is a left side view showing a transplanting machine 10 for transplanting seedlings as an example of the transplanting machine according to the embodiment of the present invention, FIG. 2 is a right side view, FIG. 3 is a rear view, and FIG. 4 is a front view. At the same time, FIG. 5 is a plan view.

In the following description, the side where the steering wheel 404 is arranged is the rear side, and the opposite side, that is, the side where the engine 41 is arranged is the front side. Then, the right-hand side is the right and the left-hand side is the left when facing the front side of the aircraft.

As shown in FIGS. 1 to 5, the transplanting machine 10 of the present embodiment has a traveling vehicle body 40 capable of traveling forward, a steering handle 404 for walking control provided at the rear of the traveling vehicle body 40, and a field. A planting device 42 for planting seedlings and a seedling supply device 43 for supplying seedlings to the planting device 42 are provided.

The traveling vehicle body 40 is provided with a mission case 39 at the front portion of the machine body, and an engine 41 which is a drive device is provided at the front side of the mission case 39. Axle covers 101 covering the axles that can adjust the tread to change the left and right positions of the traveling wheels 44, which are the rear wheels, are connected to the lower parts of the rear side of the fuselage on both the left and right sides of the mission case 39. A traveling transmission case 38 for transmitting a driving force to a traveling wheel 44 provided on the rear side of the machine body is mounted on the outer end portion so as to be rotatable up and down.

The left and right traveling wheels 44 are mounted on the outside of the traveling transmission case 38.

More precisely, the left and right axle covers 101 are rotatably mounted with the internal axle (not shown) as a fulcrum, and the traveling transmission case 38 is mounted on each of these axle covers 101. The axle cover 101 rotates due to the expansion and contraction of the rolling cylinder, so that the traveling transmission case 38 rotates up and down.

Then, as shown in FIGS. 1 to 5 and 10, at least the transmission case 26 is transmitted to the transmission case 26 which is transmitted from the mission case 39 and supplies the driving force to the planting device 42 and the seedling supply device 43 in a branched manner. A base plate 400 that covers the left and right side surfaces and the back surface is provided, and a frame stay 401 is detachably provided at the rear portion of the base plate 400 via fastening members such as bolts and nuts. Then, the frame stay 401 is provided with a handle frame 402 that projects in a shape that draws an arc toward the upper rear side of the machine body, and the rear portion of the handle frame 402 is used for vertical adjustment of the vehicle height and transmission of traveling and planting work. In addition to providing a control unit 403 for operating the on / off of the seedlings, a control handle 404 to be gripped when the operator operates the machine body when moving without planting seedlings is provided. The steering handle 404 has a shape that bends in the left-right direction of the machine body and toward the rear of the machine body with the handle frame 402 as the center, and on the left and right rear sides, a side clutch operating lever 405 that turns on and off the transmission to the traveling wheel 44. Are provided respectively. Further, a first throttle lever 406 for increasing / decreasing the output of the engine 41 is provided on either the left or right side of the steering wheel 404.

A control panel 47a is provided between the left and right sides of the handle 404, and the control panel 47a is provided with a vehicle height adjusting lever 123 for adjusting the vehicle height of the traveling vehicle body 40 by expanding and contracting the lifting hydraulic cylinder 300, and left and right. The main clutch lever 125 that turns on and off the transmission of the driving force to the traveling transmission case 38 and the transmission case 26, the first engine switch 407 that switches whether the engine 41 can be started and stops, and the traveling vehicle body 40. A main speed change lever 150 for switching the transmission to either moving speed, planting work speed, running neutral or reverse is provided.

When permitting the start of the engine 41, the operator pushes in and rotates the first engine switch 407 to operate the engine 41 in the on position. As a result, when the engine 41 is started, the engine 41 is started. The engine 41 may be started by using a cell starter or a recoil starter. Further, even when the engine is operated by a drive device other than the engine 41, for example, an electric motor, the electric motor is energized and started when the first engine switch 407 is in the ON position.

When the engine 41 is stopped, when the operator lightly pushes the first engine switch 407, the engine 41 is switched to the off position by the force of the built-in torque spring (not shown), whereby the engine 41 is stopped.

Since it is only necessary to lightly push the first engine switch 407 during the off operation, running and planting can be stopped immediately. As a result, the running and planting are stopped immediately when the ridge end is reached, so that the planting operation of the seedlings in the non-ridged part is prevented, and the extra seedlings consumed are reduced. In addition, when the aircraft is moved to the ridge where the next planting work is performed, extra movement does not occur, so that fuel consumption and working time are reduced.

On the front side of the control handle 404 and above the transmission case 26, a seedling supply device 43, which will be described later, is provided to convey the seedlings to be thrown by the operator to the left and right planting hoppers 20a and 20b. The strength of the vicinity of the control handle 404 and the seedling supply device 43 is improved and vibration is generated over the rear portion of the seedling supply device 43 and the reinforcing connecting stay 151 provided on the rear upper portion of the handle frame 402 and on the front side of the control panel 47a. A reinforcing frame 152 in the front-rear direction is provided to reduce the number.

When the seedling planting work on one ridge is completed, the traveling vehicle body 40 moves to the rear side in the traveling direction of the aircraft, grips the control handle 404 and the side clutch operating lever 405 inside the turning, and turns. The traveling vehicle body 40 is turned by blocking the transmission to the inner traveling wheel 44, and moves to the starting end side of the next planting work line. At this time, the operator puts his / her weight downward while grasping the control handle 404, and separates the front side of the traveling vehicle body 40 upward from the field scene, thereby facilitating the turning traveling.

A U-shaped bumper support frame 108 is provided on the front side of the machine body and on both the left and right sides of the mission case 39 so as to project toward the front side of the machine body in a front cross-sectional view. Then, in front of the left and right bumper support frames 108, bumpers 109 projecting to the front side of the machine body are provided.

As shown in FIGS. 6 to 8, the bumper 109 includes a bumper plate 109a whose front side and left and right sides of the plate body are bent downward, a front weight 109b which can be attached to and detached from the upper surface of the bumper plate 109a, and a bumper plate. It is composed of a bumper rod 109c extending in the left-right direction from 109a. The front weight 109b is made of a mass of a relatively heavy and hard material such as iron, and has a shape protruding toward the front side of the machine body from the bumper plate 109a.

As a result, the front weight 109b, which is a mass having weight and hardness, protrudes most to the front of the machine body, so that it is possible to prevent damage to the bumper plate 109a when it comes into contact with an obstacle.

The left and right bumper support frames 108 are formed on the front side of the fuselage and on the lower side of the fuselage with recesses (not shown) having openings on the lower side of the fuselage. Insert and fix the frame 110.

By providing the front beam frame 110, the left and right bumper support frames 108 and the mission case 39 can be assembled into a quadrangular frame on the front side of the machine body, so that the strength of the front side of the machine body is improved. In particular, when the bumper 109 comes into contact with an obstacle, the left and right bumper support frames 108 are inserted and fixed to the front beam frame 110, so that damage or impact is less likely to propagate to the rear side of the left and right bumper support frames 108. Become.

Further, when assembling the mission case 39 to the airframe, the recesses of the left and right bumper support frames 108 are inserted into the front beam frame 110 and then moved in the left-right direction to fix the front-rear position of the mission case 39 and then to the left-right position. Is possible, so that the assembly work is prevented from being delayed due to the deviation of the mounting position of the mission case 39.

The rear portion of the engine 41 is loaded on the front side of the mission case 39 and on the left and right sides, and the front portion of the engine 41 is loaded on an engine mount arranged near the left and right center portions of the front beam frame 110. However, the bumper support frame 108 and the engine 41 on the side where the engine 41 is arranged are arranged so as to be spaced apart in the vertical direction. That is, the bumper support frame 108 is not a member that receives the engine 41 from below.

With the above configuration, it is possible to prevent the impact when the bumper 109 comes into contact with an obstacle from propagating from the bumper support frame 108 to the engine 41, thereby preventing the engine 41 from being damaged or causing malfunction due to the impact. can.

Further, even if the bumper support frame 108 is deformed by an impact, the load state of the engine 41 is less likely to be affected, and even if the bumper 109 is damaged, the work or movement can be performed by the power of the engine 41.

Then, on both the left and right sides of the bumper plate 109a, step support plates 111 having recesses in the left-right direction for mounting the bumper rod 109c are mounted. The left and right step support plates 111 are configured to be supported via reinforcing arms 112 provided on the rear side of the front beam frame 110 and on both the left and right sides, respectively.

The upper surfaces of the left and right step support plates 111 are flat, and on one side of the traveling vehicle body 40 on the left and right sides of the aircraft, that is, on the left side of the aircraft, the front side portion of the front boarding step 113 on which the operator puts his / her foot when getting on and off from the front side of the aircraft. To wear. On the other hand, on the left and right sides of the machine, that is, on the right side of the machine, the front-rear distance between the seedlings to be planted by the planting hoppers 20a and 20b, that is, the so-called space between stocks, is set. Form an inter-stock switching cover 114 that supports a planting shift lever 803 that selects a first planting speed or a second planting speed when is being operated to the planting speed.

The front boarding step 113 includes a lower footrest portion 113a located on the front side of the aircraft and on the lower side in the vertical direction, and an upper footrest portion 113b located on the rear side of the aircraft and on the upper side in the vertical direction with respect to the lower footrest portion 113a. It is located between the upper and lower parts of the lower footrest portion 113a and the upper footrest portion 113b, and is composed of an intermediate inclined portion 113c that is twisted and inclined toward the outside of the machine body. A plurality of non-slip protrusions 113d are formed on the surface of the lower footrest portion 113a, and the intermediate inclined portion 113c has an inclined angle that makes it difficult for the operator to psychologically place the foot when getting on and off, and the lower footrest portion It is the front-rear length that is passed across the 113a when moving between the upper footrest portion 113b.

On the other hand, the inter-stock switching cover 114 includes a lower base portion 114a located on the front side of the machine body and on the lower side in the vertical direction, and an upper base portion 114b located on the rear side of the machine body and on the upper side in the vertical direction with respect to the lower base portion 114a. , Located between the upper and lower sides of the lower pedestal 114a and the upper pedestal 114b, twisting and tilting toward the outside of the machine, the inter-stock main shift lever 801 and the inter-stock sub-shift lever 802, and the main shift lever 150 move, respectively. It is composed of a lever mounting portion 114c having a moving groove formed therein.

The front boarding step 113 and the inter-stock switching cover 114 have symmetrical shapes, and the inter-stock switching cover 114 may be provided on one side of the left and right sides of the machine, and the front side boarding step 113 may be provided on the other side of the left and right sides of the machine.

Then, on the rear side of the machine body of the upper footrest portion 113b and the upper base part 114b, a side step 118 is provided so that a worker can get on and off from the side of the machine body and serve as a scaffold for work.
In the side step 118, plate bodies are arranged vertically and horizontally in the frame to form a plurality of space portions, and the soil adhering to the sole of the worker is dropped downward. Further, a central step 119, which serves as a scaffold for the worker to be boarded, is detachably provided between the left and right sides of the left and right side steps 118.

As described above, the floor step 122 is configured.

The front boarding step 113, the inter-stock switching cover 114, the left and right side steps 118, and the center step 119 are mounted independently, that is, they are not fastened together with one mounting member (bolt or the like). As a result, when removing each step structure during partial maintenance work, it is not necessary to remove another step structure, and the efficiency of maintenance work is improved.

A boarding / alighting assist mechanism 170 on which an operator puts his / her foot when getting on / off the front boarding step 113 is attached to the lower part of the front side of the front boarding step 113. The boarding / alighting assist mechanism 170 has an L-shaped side view, which is located on the outside of the fuselage, and has an outer support arm 171 having a first protrusion 171a protruding in front of the fuselage below the bent portion and inside the fuselage. Located over the inner support arm 172, which is L-shaped in front view and has a second protrusion 172a protruding outward from the fuselage below the bent portion, and the first protrusion 171a and the second protrusion 172a. It is composed of the boarding / alighting assistance step 173 provided.

The outer support arm 171 is fastened together with the step support plate 111 with co-tightening bolts 174 ... and mounted on the traveling vehicle body 40. Further, the inner support arm 172 is fastened together with the bumper plate 109a with the co-tightening bolts 174 ... and attached to the traveling vehicle body 40.

As a result, since a plurality of members are tightened with the co-tightening bolts 174 ..., the strength of the traveling vehicle body 40 near the front side of the machine body is improved, and the durability due to the load when the operator gets on and off is reduced. It will be reduced.

Further, by providing the boarding / alighting assistance step 173, even if the vehicle height of the traveling vehicle body 40 is raised according to the height of the ridges and the like, the operator puts his / her foot on the boarding / alighting assisting step 173 and the front boarding step 113 Since the foot can be stepped on the lower footrest 113a to get in and get off by the reverse operation, there is no need to raise the foot high when getting on and off, and there is no need to jump off at all, and the body of the worker. The burden on you is reduced.

Since the boarding / alighting assist step 173 is provided over the first protruding portion 171a and the second protruding portion 172a, the outer support arm 171 and the inner support arm 172 are not located within the left-right width of the boarding / alighting assist step 173. The operator's foot is prevented from coming into contact with the outer support arm 171 and the inner support arm 172.

On the other hand, when the vehicle height of the traveling vehicle body 40 is lowered or during the planting work, not only the boarding / alighting assist mechanism 170 becomes unnecessary, but also the ridges come into contact with the ridges or the slopes of the ridges depending on the vehicle height. There is a risk of breaking and reducing the planting accuracy of seedlings.

In order to prevent this, the bases of the outer support arm 171 and the inner support arm 172 are attached with double nuts (not shown), and the outer support arm 171 and the inner support arm 172 are rotated using the co-tightening bolt 174 ... as a rotation fulcrum. It may be possible to mount the boarding / alighting assist mechanism 170 so that it can rotate up and down.

With the above configuration, the boarding / alighting assisting mechanism 170 can be rotated upward away from the ridge surface when it is not needed, so that the boarding / alighting assisting mechanism 170 is prevented from breaking the ridges and the seedling planting accuracy is maintained.

As shown in FIGS. 1 to 8, the lower portion of the inter-stock switching cover 114 rotates downward due to its own weight and comes into contact with the ridge surface, and when the traveling vehicle body 40 reaches the end of the ridge and does not touch the ground, it further rotates downward. A ridge sensor stay 182a is provided to support the ridge sensor 182, which operates and activates a notification device 181 that informs the operator that the field edge has been reached. The notification device 181 is a communication device that notifies a buzzer or a lamp attached to each part of the traveling vehicle body 40, or an information terminal (tablet, smartphone, etc.) of an operator.

The ridge sensor 182 is provided with a rotatably provided sensor arm 183, a ridge grounding roller 184 is rotatably mounted on the lower portion of the sensor arm 183, and a grounding urging spring 185 for urging the sensor arm 183 downward. At the base of the sensor arm 183, a ridge detection switch 186 that turns on (or off) when the angle exceeds a predetermined angle is provided. The grounding urging spring 185 is configured such that the upper end side is attached to the detection adjustment plate 187 whose angle can be adjusted along the elongated hole, and the operating angle can be changed according to the ridge height.

The ridge sensor 182 is brought into contact with the ridge surface by adjusting the vehicle height of the traveling vehicle body 40 at the start of the seedling planting work traveling. By grounding the rotatable ridge grounding roller 184, the ridges are not easily broken and fine irregularities can be smoothed, so that the seedling planting accuracy can be improved.

Then, when the traveling vehicle body 40 continues to move forward and reaches the end of the ridge and the ridge surface grounding roller 184 does not come into contact with the ridge surface, the urging force of the grounding urging spring 185, the sensor arm 183, and the ridged surface grounding roller Due to the weight of 184, the sensor arm 183 rotates downward, and the ridge detection switch 186 is not pressed. When the ridge detection switch 186 is no longer pressed, the notification device 181 is energized to operate the notification device 181 and notify the operator that the vicinity of the front end of the traveling vehicle body 40 has reached the ridge end.

When the ridge sensor 182 detects the ridge, there is still a planting space for several plants in the ridge, so the operator does not stop the aircraft immediately, but the remaining planting space. While putting the number of seedlings to be planted in the seedling supply device 43 into the seedling supply device 43, the stop operation is prepared.

As a result, the worker can know the approach to the ridge without looking back, so that the aircraft can be stopped at the timing when the seedlings are planted on the ridge, and the fuel consumption due to extra running and the next It is prevented that the moving distance to the work line is long.

Further, since the number of seedlings to be put into the seedling supply device 43 can be adjusted when the ridges are approaching, the ridges are planted even if the planting hoppers 20a and 20b are delayed in stopping the planting work. It is prevented that seedlings are released to places other than the above.

As shown in FIGS. 4, 6 and 7, the sensor arms 183 are paired left and right sensor arms 183a and 183a, and the ridge surface contact rollers 184 are rotatably attached to the left and right ridge surface contact rollers 184a and 184a, respectively. However, the left and right ridge detection switches 186 and 186 may be provided respectively.

As a result, when either one of the left and right sensor arms 183 and 183 rotates downward and one of the corresponding ridge detection switches 186 and 186 is not pressed, the notification device 181 operates and the ridge ends. Even if the shape is distorted due to wind and rain, the ridges can be easily detected, and the operator can stop the planting work at the right time.

Further, on both the left and right sides of the traveling vehicle body 40 on the front side of the machine body, and on the front side of the machine body with respect to the traveling wheel 44, the vehicle rolls via a horizontal frame 16 provided on the lower side of the front beam frame 110 and projecting in the left and right direction of the machine body. A front wheel 45 that is movably supported is provided.

Then, the tip of the wheel drive shaft extending outward from the mission case 39 to the left and right sides enters the position of the rotation axis center of the front portion of the traveling transmission case 38, and the traveling unit system shift in the transmission case 39. The power for traveling through the transmission unit is transmitted to the transmission mechanism in the traveling transmission case 38. Then, the power for traveling is transmitted to the transmission axle of the traveling transmission case 38 via the transmission mechanism in the traveling transmission case 38, and the traveling wheel 44 is driven and rotated.

Further, the traveling transmission case 38 is connected to a driving means that rotates up and down to move the traveling wheel 44 up and down with the front side of the traveling transmission case 38 as a rotation fulcrum. Specifically, an upwardly extending arm 13 is integrally attached to the attachment portion of the traveling transmission case 38 to the mission case 39, and the lifting hydraulic cylinder 300 in which the arm 13 is fixed to the mission case 39. It is connected to the left and right sides of the connecting body attached to the tip of the piston rod. One left and right side (right side) is connected by a connecting rod, and the other side (left side) is connected by a hydraulic cylinder for left and right control that can be expanded and contracted according to the inclination of the machine body.

When the lifting hydraulic cylinder 300 operates and its piston rod protrudes to the rear of the machine body, the left and right arms 13 rotate backward, and the traveling transmission case 38 rotates downward accordingly, and the machine body rises. On the contrary, when the piston rod of the lifting hydraulic cylinder 300 moves to the front of the machine body and retracts into the cylinder, the left and right arms 13 rotate forward, and the traveling transmission case 38 rotates upward accordingly. The aircraft descends.

The lifting hydraulic cylinder 300 is operated by a ridge surface sensor 14 that touches the ridge surface and operates as the vertical distance between the machine body and the ridge surface fluctuates. The operation of the ridge surface sensor 14 is an operation of detecting the height of the upper surface of the ridge based on the position of the machine, and the height of the machine is set according to the height of the upper surface of the ridge based on the detection operation of the ridge sensor 14. The configuration is such that the lifting hydraulic cylinder 300 operates.

Further, when the left-right horizontal control hydraulic cylinder expands and contracts, the left arm 13 connected to the left-right horizontal control hydraulic cylinder rotates, and only the left traveling wheel 44 is moved up and down to tilt the machine to the left and right. .. The left-right horizontal control hydraulic cylinder is configured to operate based on the detection result of the sensor that detects the left-right tilt of the machine with respect to the left-right horizontal to make the machine horizontal.

As shown in FIGS. 1, 2 and 5, the horizontal frame 16 is rotatably mounted on the front beam frame 110 at the center of the axis in the front-rear direction, and is mounted on both left and right sides of the horizontal frame 16. , A long vertical frame 17 is attached vertically. The left and right front wheels 45 are rotatably attached to the front wheel axle 18 fixed to the lower end side of the vertical frame 17. Therefore, the left and right front wheels 45 are rotatable around the axis in the front-rear direction at the center of the left and right sides of the machine body. Further, the vertical frame 17 is provided so as to be vertically adjustable with respect to the left and right side portions of the horizontal frame 16, so that the height of the front wheel 45 can be adjusted.

The steering handle 404 is provided at the rear portion of the fuselage, and is located on the rear side of the fuselage with respect to the transmission axle of the traveling wheel 44. Specifically, it is attached to the rear end portion of the airframe frame 19 in which the front end portion is fixed to the mission case 39.

The airframe frame 19 extends rearward at the center of the left and right sides of the airframe, and extends diagonally rearward and upward from the front-rear intermediate portion.

The steering handle 404 extends rearward to the left and right from the rear end of the fuselage frame 19, and each rear end thereof serves as a grip portion of the steering handle 404.

Although the grip portion is divided into left and right in FIG. 2, the left and right rear end portions of the steering handle 404 may be connected to each other on the left and right, and the connected portion may be used as the grip portion.

The planting device 42 raises and lowers a plurality of beak-shaped planting tools whose tips point downward, and a position where the lower end of the planting tool is above the field scene and a position below the field scene. The vertical movement mechanism 21 to move, the closed state where the lower end of the beak-shaped planting tool is closed and the seedlings can be received from above and the seedlings can be stored inside, and the lower end of the planting tool opens to the left and right and is stored inside. It is equipped with an open / close mechanism that opens and closes the planting tool in an open state that allows the seedlings to be released downward.

As shown in FIGS. 1 to 5, the planting device 42 of the present embodiment has a two-row planting configuration in which the first planting hopper 20a and the second planting hopper 20b are arranged side by side. The first planting hopper 20a and the second planting hopper 20b are respectively mounted on the vertical movement mechanism 21 provided on both the left and right sides of the transmission case 26 transmitted from the mission case 39.

Each seedling container 22 has a tubular body that opens up and down and a bottom lid that opens and closes an opening on the lower side of the tubular body, and is connected to each other in a loop shape.

The moving mechanism 23 is a state in which each connected seedling accommodating body 22 passes above and near the left and right planting hoppers 20a and 20b, and the connected seedlings are formed by a long circular loop-shaped locus on the left and right in the plane view of the machine body. The accommodating body 22 is rotated counterclockwise.

The seedling dropping mechanism opens the bottom lid of the seedling container 22 at a position above the planting hoppers 20a and 20b corresponding to the seedling container 22.

In the present embodiment, a cylindrical outer peripheral portion is formed on the outer peripheral portion of the seedling accommodating body 22, and an engaging portion (round hole) rotatably connected from the outside is provided on the outer peripheral portion of the cylinder to provide two seedling accommodating bodies 22. A plurality of connecting bodies for connecting the above were formed. Then, the engaging portion of the connecting body is rotatably connected to the outer peripheral portion of the cylinder of the seedling accommodating body 22, and the adjacent seedling accommodating body 22 is rotatably connected with the outer peripheral portion of the cylinder as the rotation axis. , A plurality of seedling containers 22 are connected to each other. That is, the seedling accommodating body 22 and the connecting body are connected like an endless chain.

As a result, the seedling accommodating body 22 has the same distance from the adjacent seedling accommodating body 22 in both the linear portion 28 that moves linearly and the arcuate portion 29 that moves in an arc shape. At the place where the seedlings are supplied to the planting hoppers 20a and 20b, the positional deviation based on the left and right planting hoppers 20a and 20b of the seedling container 22 is less likely to occur, and the seedlings are properly supplied and the seedlings are appropriate. Can be planted.

The moving mechanism 23 of the seedling supply device 43 winds the seedling accommodating bodies 22 connected to each other like an endless chain around the arcuate notches on the outer periphery of the sprockets provided on the left and right, and takes out the left and right sprockets from the transmission case 26. Each seedling accommodating body 22 is configured to rotate around by driving and rotating with the power of the seedling.

The orbital movement path around which the seedling container 22 orbits is a length including a linear portion 28 extending in the left-right direction in a plan view and an arc-shaped portion 29 that bends in an arc shape from the linear portion 28 to the front side or the rear side by a sprocket. It has a circular shape and is arranged inside the body from the left and right traveling wheels 44.

The seedling accommodating body 22 of the seedling feeding device 43 moves relatively stably in a predetermined direction in the linear portion 28, but in the arcuate portions 29 on both the left and right sides, the distance between the seedling accommodating bodies 22 is narrowed or widened. This may cause damage to the drive of the seedling supply device 43, or may cause the seedling drop supply timing to become unstable. In order to prevent this, star foils 240 and 240 that are driven and rotated are provided on the inner peripheral edges of the plurality of seedling containers 22 and on the left and right outer portions of the seedling supply device 43, respectively. Protrusions are formed at equal intervals on the outer peripheral edge of the 240. By allowing these protrusions to enter the interval portion of the seedling container 22, the position of each seedling container 22 when passing through the arcuate portions 29 on both the left and right sides of the seedling supply device 43 is maintained, thereby overloading. It prevents the occurrence of seedlings and the deviation of the timing of dropping and supplying seedlings.

The worker sits on the work seat 46 or stands on the floor step 122 to supply the seedlings to the seedling supply device 43, but when the seedlings for replenishment are exhausted or some problem, for example, the planting posture of the seedlings When abnormalities occur continuously, seedlings cannot be planted, etc., it is necessary to stop the traveling of the traveling vehicle body 40 and stop the driving of the planting hoppers 20a and 20b. Further, when the traveling speed or the ascending / descending pace of the planting hoppers 20a and 20b is faster than the pace of the worker, it is necessary to reduce the output of the engine 41 and change the speed so that the work can be easily performed.

As shown in FIGS. 4 and 5, the above operation is performed on the front side of the seedling supply device 43 and at one left and right end so that the seedling supply device 43 can be performed while sitting on the work seat 46 or without getting off the floor step 122. That is, on the right-hand side of the worker seated in the work seat 46, a second engine switch 408 for switching whether the engine 41 can be started or not and for performing a stop operation is provided, and the inside of the machine body (inside the second engine switch 408). A second throttle lever 409 for increasing / decreasing the output of the engine 41 is provided at a position closer to the left / right side of the machine body so as to be rotatable in the left / right direction of the machine body.

The second engine switch 408 has the same operation method as the first engine switch 407, but the engine 41 is not operated unless both the first engine switch 407 and the second engine switch 408 are operated in the on position. It shall not start.

As a result, when the operator grips the control handle 404 behind the machine and steers it when moving, the first engine switch 407 can be used to stop the operation, and the worker is on the traveling vehicle body 40 when planting seedlings. At this time, the engine 41 can be stopped by turning off the second engine switch 408, so that there is no need to get off the traveling vehicle body 40 and go to turn off the first engine switch 407 while boarding, and the planting or the aircraft The operation that causes the problem can be interrupted.

Further, since the second throttle lever 409 can be operated from above the traveling vehicle body 40, it is not necessary to get on and off the traveling vehicle body 40 when increasing or decreasing the output of the engine 41, and the work efficiency and work accuracy are improved.

Further, the left and right planting hoppers 20a and 20b are arranged on the rear side of the position of the transmission axle.

The seedling supply device 43 is configured such that the seedling accommodating body 22 orbits around in accordance with the left and right planting hoppers 20a and 20b to supply seedlings.

In the planting hoppers 20a and 20b, seedlings are dropped and supplied from the seedling container 22 at the first drop supply position 31a and the second drop supply position 31b, respectively.

Further, a seedling accommodating body 22 for accommodating seedlings to be dropped and supplied corresponding to the left and right planting hoppers 20a and 20b is separately provided, and above the left and right planting hoppers 20a and 20b corresponding to the seedling accommodating body 22. The bottom lid opens only when it comes, and the bottom lid does not open above the left and right planting hoppers 20a and 20b that do not correspond.

That is, the seedling accommodating body 22 corresponding to the planting hopper 20a reaches the first drop supply position 31a only, and the seedling accommodating body 22 corresponding to the planting hopper 20b comes to the second drop supply position 31b. The bottom lid is opened and seedlings are supplied to the corresponding planting hoppers 20a and 20b.

The first drop supply position 31a and the second drop supply position 31b are configured to be movable to the corresponding positions when the space between the left and right planting hoppers 20a and 20b is adjusted.

The operating cycle of the moving mechanism 23 is set to be synchronized with the operating cycle of the vertical moving mechanism 21, and the seedling accommodating bodies 22 corresponding to the left and right planting hoppers 20a and 20b are combined to form one seedling accommodating body unit. By connecting a plurality of seedling housing units, the seedling housing 22 passes through the left and right drop supply positions 31a and 31b in series, and the seedlings are supplied corresponding to the left and right planting hoppers 20a and 20b. Seedlings can be supplied without leakage, and the seedling housings 22 to which seedlings were not supplied after passing through the left and right drop supply positions 31a and 31b are completely placed on the left and right planting hoppers 20a and 20b. The structure is such that seedlings can be supplied accordingly.

In the transplanting machine 10 of the present embodiment, the soil covering suppression ring 37 used for soil covering suppression according to the seedlings planted by the left and right planting hoppers 20a and 20b is provided at the seedling planting location of the left and right planting hoppers 20a and 20b. It is provided near each of the rear left and right sides of. The left and right soil-covering suppression rings 37 are composed of a single bar bent into a J-shape in a plan view, and the suppression arms 370 and 370 that can rotate up and down separately, and the left and right suppression arms 370 and 370, respectively. On the rear side, each is composed of a pair of left and right squeezing rotating bodies 371 and 371 that are rotatably provided.

The suppression arm 370 has one side end located inside the machine body rotatably mounted on the rear side of the traveling vehicle body 40, and the rear portion of the straight line portion protruding rearward is bent upward. It is bent outward of the fuselage and then bent downward to the front of the fuselage at the same vertical position as the straight part inside the fuselage. Of the left and right squeezing rotating bodies 371 and 371, the squeezing rotating body 371 on the outside of the machine is provided on the straight portion on the outside of the machine that bends to the front side of the machine, and the squeezing rotating body 371 on the inside of the machine is attached to the straight part on the inside of the machine. Will be done.

With the above configuration, an avoidance portion 372 protruding upward from the machine body is formed at the rear portion of the suppression arm 370, and the left and right suppression rotating bodies 371 and 371 are arranged at a space between the left and right sides. As a result, the seedlings planted by the planting hoppers 20a and 20b pass through the left and right spacing portions of the left and right suppression rotating bodies 371 and 371, the surrounding soil is leveled, and pass below the avoidance portion 372. It is prevented from being pushed down by the soil covering suppression wheels 37 and 37 and disturbing the planting posture.

The left and right suppression arms 370 and 370 are mounted so that the left and right positions of the machine body can be adjusted, respectively, and the positions of suppression can be changed according to the inter-strip settings of the planting hoppers 20a and 20b. In addition, if the left and right squeezing rotating bodies 371 and 371 are also configured so that the left and right positions can be adjusted, the soil around the seedlings after planting can be surely solidified, and the seedlings may grow poorly due to lodging or low temperature. Be prevented.

The transplanting machine in this case is provided with a work seat 46 on which the worker sits so that the worker who supplies the seedlings can get on the seedling supply device 43 to perform the seedling supply work. Specifically, the work seat 46 is arranged backward at the center position on the left and right sides of the machine body, which is the front side of the seedling supply device 43. The worker sitting on the work seat 46 sits in a rearward posture toward the front side of the seedling supply device 43, and has a linear shape on the front side of the seedling supply device 43, particularly on the front side of the orbital movement path of the seedling container 22. Seedling supply work is performed corresponding to the portion 28.

Further, on the left and right other sides of the control panel 47a, a main clutch lever 125, which is built in the mission case 39 and for turning on and off the transmission of the driving force to the left and right traveling transmission cases 38 and the transmission case 26, is provided.

In the transplanting machine of the present invention, the operator's operation by the control handle 404 at the rear of the machine body is performed when moving to the field, loading and unloading from the transportation means, storing in the warehouse, and turning at the field edge. .. On the other hand, at the time of planting seedlings, the worker is on the work seat 46 of the traveling vehicle body 40, and it is difficult to operate the control handle 404 on the control panel 47a.

Therefore, on the traveling vehicle body 40, a vehicle body control unit 126 for a worker who is on the work seat 46 is provided.

As shown in FIGS. 4 and 11, a rear step 127 that inclines upward to the rear side of the machine body is provided in the lower part of the seedling supply device 43, and one of the left and right sides of the rear step 127, in this case, the right side of the machine body (work seat). As shown in FIGS. 4, 5 and 11, a control unit 126 on the vehicle body is provided at the end of the left side with respect to the operator seated on the 46.

The on-vehicle control unit 126 arranges a second vehicle height adjusting lever 128 that adjusts the vehicle height of the traveling vehicle body 40 to adjust the planting depth of the planting hoppers 20a and 20b on the outermost side of the vehicle body. 2 The second main clutch lever 129 is arranged inside the machine body from the vehicle height adjustment lever 128.

Since it is basically not necessary to fix the vehicle height during the seedling planting work, the second vehicle height adjusting lever 128 is configured to have only the "high" position and the "low" position.

Then, at the outer end of the rear step 127, the vehicle height adjusting lever guide 130 having the second vehicle height adjusting lever 128 housed in the frame and having a display scale indicating a guideline for the vehicle height is inclined upward toward the front side of the machine body. The vehicle height adjusting lever guide 130 is provided in a posture, and a main clutch lever guide 131 for accommodating the second main clutch lever 129 in the frame is provided in an upward inclined posture toward the front side of the machine body.

The second vehicle height adjusting lever 128 has a larger amount of protrusion toward the front side of the machine than the second main clutch lever 129.

Further, the second vehicle height adjusting lever 128 and the second main clutch lever 129 can rotate the base side to the mounting support plate 105 on the left and right sides of the machine body (on the right side of the machine body) and the front and rear beam frames 106f and 106r. If it is to be mounted, it is not necessary to separately provide a mounting member, and the number of parts can be reduced.

Further, side clutch pedals 132L and 132R for turning on and off the left and right side clutches are provided on the left and right sides of the fuselage, that is, on the left side of the fuselage with respect to the control unit 126 on the vehicle body, exposed on the upper surface of the rear step 127.

The vehicle height adjusting lever guide 130 and the main clutch lever guide 131 are arranged with a certain vertical interval S between the upper surface of the side step 118. The above-mentioned vertical spacing S is set to such an extent that a space is secured even if the worker's feet are inserted (example: about 15 to 20 cm).

With the above configuration, the worker on the floor step 122 and on the work seat 46 can manually operate the planting depth and turn on / off the planting work without getting off the traveling vehicle body 40. , Work efficiency is improved and seedling planting accuracy is improved.

In addition, by arranging the second main clutch lever 129 inside the machine body that is closer to the work seat 46 than the second vehicle height adjustment lever 128, the second main clutch lever 129 is used for replenishing seedlings, correcting the planting state, taking a break, etc. The main clutch lever 129 is easily accessible to the operator, and labor can be reduced.

In particular, when a problem occurs, the planting work of seedlings can be interrupted promptly, the work of replanting seedlings becomes unnecessary, and the number of seedlings that are unsuitable for growth and discarded is reduced.

Further, by projecting the second vehicle height adjusting lever 128 toward the front side of the machine body from the second main clutch lever 129, the arm is greatly extended when operating the second vehicle height adjusting lever 128 on the side far from the work seat 46. There is no need, and the labor of the worker is reduced.

By providing the left and right side clutch pedals 132L and 132R in the rear step 127, which of the side clutch pedals 132L and 132R is used when the traveling direction of the traveling vehicle body 40 is about to deviate from the straight direction with respect to the ridge. By temporarily disengaging the corresponding side clutch by operating the pedal, the course of the traveling vehicle body 40 can be corrected, and the seedling planting position is prevented from meandering in the left-right direction.

Further, the work of boarding the work seat 46 is made by forming the vehicle height adjustment lever guide 130 and the main clutch lever guide 131, that is, the vertical space S is formed between the upper and lower parts of the vehicle body upper control unit 126 and the side step 118. The movement of the person's feet is not hindered, and the worker can get on the control seat 46 in a comfortable posture, and the labor is reduced.

Spare seedling frames 50 capable of accommodating seedlings to be supplied to the seedling supply device 43 are provided on both the left and right sides of the work seat 46 at a position above the transmission axle of the traveling wheel 44 when viewed from the side of the machine.

The spare seedling frame 50 is provided with a support stay 52 on the upper part of the seedling support column 51 projecting to the outside of the traveling vehicle body 40, and the support stay 52 can be switched between a rotating state and a non-rotating state. An arm 53 is provided, and the seedling frame frames 54 and 54 in the vertical direction are arranged at intervals on the seedling mounting rotation arm 53, and the seedlings for replenishment are housed on the same surface of the seedling frame frames 54 and 54. It is configured by mounting one side end of a mounting table 55 on which a container such as a seedling box or a seedling tray is placed.

Only one mounting table 55 may be provided in the vertical direction, but a plurality of mounting tables 55 may be arranged at intervals in the vertical direction that do not hinder the removal of the container.

The spare seedling frame 50 having the above configuration is provided on each of the left and right sides of the traveling vehicle body 40, and the seedling mounting rotation arm 53 is rotated on the support stay 52 according to the situation.

For example, when planting seedlings, the longitudinal direction of the mounting table 55 is directed toward the front and rear of the machine, so that the container for seedlings can be taken out from the mounting table 55 and the empty container can be easily returned to improve work efficiency. Can be improved.

Further, since the mounting table 55 is located on both the left and right sides of the traveling vehicle body 40 at this position, it becomes easier for the operator to grasp the end portion of the boardable portion of the traveling vehicle body 40, and the foot protrudes from the traveling vehicle body 40 and the posture. Is prevented from breaking.

Further, when the worker gets on and off the traveling vehicle body 40, the seedling rotation arm 53 is rotated by about 90 degrees.

As a result, space for getting on and off is formed on both the left and right sides of the traveling vehicle body 40.

Further, the operator can get on and off from the front side of the traveling vehicle body 40, but the seedling frame frames 54 and 54 are located on the front side of the machine body by rotating the seedling mounting rotation arm 53, and the mounting table 55 is rear of the machine body. When the state is located on the side, the worker can use the seedling frame frames 54 and 54 as handrails, so that the traveling vehicle body 40 can get on and off smoothly.

Further, when loading or unloading the seedling container on the mounting table 55, there is no member that hinders the loading and unloading of the container from the rear side of the machine body, so that the work efficiency is improved.

When transplanting seedlings to a field, so-called irrigation work may be performed in which water is supplied to the vicinity of the planted seedlings in consideration of conditions such as the soil quality of the field, the surrounding water environment, and the weather before the work.

As shown in FIGS. 1 to 5, 12 and 13, the transplanting machine of this case can rotate the side support frame 60 up and down over the rolling wheels 45 on the front side of the machine and the traveling wheels 44 on the rear side of the machine. A base of the seat support frame 46a for supporting the work seat 46 and a water tank holder 601 for loading the water tank 600 are mounted on the side support frame 60.

The side support frame 60 includes a front frame 61 linearly arranged between the rolling wheels 45 and the front and rear of the traveling wheel 44, a rear frame 62 linearly arranged inside the machine body of the traveling transmission case 38, and traveling transmission. It is composed of a connecting frame 63 that passes through the lower side of the case 38 to connect the rear end portion of the front side frame 61 and the front end portion of the rear side frame 62 and mounts the base portion of the seat support frame 46a. The front frame 61, the rear frame 62, and the connecting frame 63 are connected so as not to rotate with each other, and the side support frame 60 is integrally rotated up and down.

Further, a front connecting arm 64 that rotatably connects the side supporting frame 60 to the rolling wheel 45 is attached to the front frame 61, that is, the front end of the side supporting frame 60. The front connecting arm 64 has a U-shape in a plan view, and is rotatably mounted so as to sandwich the rolling wheel 45 in the vicinity of the axle portion of the rolling wheel 45. Further, a wheel scraper 65 is mounted on the front lower portion of the front frame 61 so as to be able to adjust the front-rear position so that the tip portion faces the outer peripheral surface of the rolling wheel 45 or the vicinity of the outer peripheral surface by passing under the front connecting arm 64. do.

The rear frame 62 is provided with a rear connecting arm 66 having a longitudinal direction in the front-rear direction of the machine body and a long hole 66a into which the axle 12 of the rear wheel 44 is inserted in the front-rear direction of the machine body. The front and rear end portions of the rear connecting arm 66 form a bending support portion 66b toward the inside of the machine body, and the lower portion of the water tank stay 601 is connected and attached to the front and rear bending indicating portions 66b and 66b. And. When the axle 12 is inserted into the elongated hole 66a of the rear support arm 66 to change the vertical height of the rolling wheels 45, and the vertical rotation of the traveling transmission case 38 changes the vehicle height of the traveling vehicle body 40, the side The structure is such that the vertical rotation of the portion support frame 60 is not hindered.

It is assumed that the portion of the axle 12 that is opposite to the side that is inserted into the traveling wheel 44, that is, the portion that extends the inside of the machine body, enters the elongated hole 66a. Further, the rear connecting arm 66 and the traveling transmission case 38 are not brought into close contact with each other, and the distance between them is arbitrarily adjusted to be several cm (eg, 3 to 8 cm).

As a result, in addition to changing the left-right position of the rolling wheel 45 by operating the horizontal frame 16, by changing the left-right position of the side support frame 60, the tread can be changed more finely according to the ridge width.

A vertical support post 67 for inserting the base side of the seat support frame 46a is arranged on the outside of the body of the connecting frame 63 and on the upper portion of the rear side of the front frame 61. The seat frame 46a straddles the traveling vehicle body 40 and has left and right bases inserted into the left and right support posts 67 and 67. However, only one of the left and right support posts 67 is provided to support the lower end side of the seat support frame 46a. It may be configured to be inserted into the post 67.

The connecting frame 63 has a front plate 63a whose outer side is located on the front frame 61 and is in contact with the front end portion of the rear frame 62, and the outer side is located on the rear frame 62 while being in contact with the rear end portion of the front frame 61. The rear side plate 63b and the left and right plates 63c and 63c connecting the front side plate 63a and the rear side plate 63b shall be configured in a frame shape with the upper and lower sides open. The front plate 63a and the rear plate 63b are not rectangular but are formed of equilateral polygons so as to pass under the traveling transmission case 38.

The water tank stays 601 described above are provided in a plurality of front and rear receiving plates 602 whose longitudinal direction is the front-rear direction and between the front and rear receiving plates 602, and two in FIGS. 12 and 13, the left-right direction is defined as the longitudinal direction. It is composed of a left and right receiving plate 603, and a frame-shaped water tank guard 604 mounted over the front and rear receiving plates 602 and the left and right receiving plates 603.

In addition, in FIG. 13, the configuration of the side support frame 60 becomes unclear when the water tank stay 601 is attached, so it is shown in the removed state.

More specifically, front and rear receiving bending portions 602a are formed on both front and rear receiving plates 602 toward the upper side of the machine body, and left and right receiving bending portions 603a are formed on both front and rear sides of the left and right receiving plate 603 toward the upper side of the machine body. The water tank guard 604 is formed and is attached to the upper end portion or the vicinity of the upper end portion of the front / rear receiving bending portion 602a and the left / right receiving bending portion 603a by welding or the like. In addition, the water tank guard 604 may be provided on the lower side of the machine body than the vicinity of the upper end portion, and further, a plurality of water tank guards 604 may be provided at intervals in the vertical direction.

Then, on the lower side of the front / rear receiving plate 602, a pair of front / rear L-shaped connecting stays 605 and 605 that are connected to the front / rear bending instruction portions 66b and 66b of the rear side connecting arm 66 are provided. It is conceivable that the front and rear bending instruction portions 66b and 66b and the connection stays 605 and 605 are connected by fastening members such as bolts and nuts. It is desirable to use a larger diameter than the standard one used for fastening members.

With the above configuration, when the traveling transmission case 38 is rotated up and down and the vertical frame 17 is used to adjust the vertical position of the rolling wheel 45, the side support frame 60 can be rotated up and down in conjunction with the side support frame 60. The amount of forward and backward movement can be suppressed. Therefore, the fluctuation of the weight balance due to the fluctuation of the front-rear position of the work seat 46 and the water tank 600 is suppressed, and the disturbance of the traveling direction of the traveling vehicle body 40 and the disturbance of the planting posture of the planting hoppers 20a and 20b are prevented.

Further, since the side support frame 60 rotates in conjunction with the vertical rotation of the traveling transmission case 38, it is not necessary to separately rotate the side support frame 60 up and down, and the vehicle height adjustment work can be performed efficiently. It can be carried out.

Further, since the front connecting arm 64 is mounted so as to sandwich the rolling wheels 45 from the left and right, the rolling wheels 45 are supported from the left and right directions, so that the configuration is strong against the load received from the work seat 46 and damage occurs. It becomes difficult.

Further, since the front frame 61 and the support post 67 are arranged linearly between the front and rear of the rolling wheels 45 and the traveling wheels 44, these members are located on the ridge grooves, so that the ridges are prevented from being broken by contact. Therefore, the growth of the planted seedlings is less likely to be adversely affected.

Further, by inserting the axle 12 of the traveling wheel 44 into the elongated hole 66a formed in the rear connecting arm 66, the axle 12 designed with high strength to receive the load and the ground contact resistance of the traveling vehicle body 40 is used. Since the load of the water tank 600 can be received, the water tank stay 601 and the side support frame 60 are prevented from being damaged.

Further, by attaching the wheel scraper 65 to the front frame 60, the soil adhering to the wheel 45 can be scraped off, so that the diameter of the wheel 45 changes and the traveling direction of the traveling vehicle body 40 is disturbed. It is possible to prevent the seedling planting posture from being disturbed due to a change in the front-rear tilt angle of the traveling vehicle body 40.

Further, since the front-rear position of the wheel scraper 65 can be adjusted, the wheel 45 is excessively contacted to cause running resistance, and the soil adhering to the wheel 45 cannot be sufficiently removed, so that the effect can be obtained. It is prevented from disappearing.

The capacity of the water tank 600 loaded with the above configuration is preferably about 10 liters in consideration of strength, that is, 10 kg of water and several hundred grams of the weight of the water tank 600 itself is desirable.
However, in a field with a large planting work area, it is desirable that the water tank 600 be replaced less frequently in order to prevent a decrease in work efficiency. As an example, a plastic tank having a capacity of 20 liters used for transporting and storing kerosene and the like can be mentioned.

When increasing the capacity of the water tank, in addition to the load, the front-back and left-right width of the water tank becomes a problem.
When loading a large-capacity water tank according to the configuration of the transplanter of the present application, the space above the traveling transmission case 38 has no problem with the front-rear width, but the left-right width cannot be secured, even if it can be inside the traveling wheel 44. It is desirable to use an open space outside the fuselage of the traveling wheel 44 because there is a possibility of contact.

As shown in FIGS. 14 to 17, in order to support the large capacity tank 610 on the outside of the machine body of the traveling wheel 44, an inner stay 611 is provided on the rotation base side of the traveling transmission case 38, that is, on the front side of the machine body and inside. The upper side of the inner stay 611 protrudes significantly upward from the upper surface of the traveling transmission case 38, and the lower side also protrudes downward from the lower surface of the traveling transmission case 38. Further, an outer stay 612 corresponding to the inner stay 611 is attached to the front side and the outer side of the traveling transmission case 38, the lower portion of the outer stay 612 is projected below the traveling transmission case 38, and the upper part is a prismatic column. A receiving portion for receiving the member of the above is formed above the upper surface of the traveling transmission case 38.

A hollow columnar member, for example, an outer tube 613 which is a hexagonal columnar, is attached to the receiving portion formed on the outer stay 612 in the left-right direction of the machine body. The hexagonal columnar outer tube 613 is firmly fixed to the outer stay 612 by welding or the like so as to receive the load of the large capacity tank 610.

The rear side of the outer stay 612 forms a bent portion 612a toward the outside of the fuselage, and the upper end portion of the bent portion 612a is brought into contact with the rear side of the outer tube 613 for welding to further improve the strength. .. Further, the outer tube 613 is provided with a receiving nut on the outer peripheral surface into which a fastening member such as a bolt is inserted, and the fastening member is screwed into a screw groove (not shown) formed in the inner stay 611, and the inner stay 611 and the outer stay are screwed. The mounting strength is increased by inserting and fastening the fastening member into the mounting hole formed on the lower side of the 612. Further, a mounting hole is also formed in a part of the surface of the inner stay 611 and the outer stay 612 that come into contact with the traveling transmission case 38, and a nut or the like is attached to the screw shaft exposed from the inside of the traveling transmission case 38 so as to extend in the vertical direction. The structure is designed to ensure load resistance.

Then, the left and right base sides of the tank guard 615 that surrounds and supports the outer circumference of the large capacity tank 610 are connected to a columnar member having a shape corresponding to the outer tube 613, for example, a hexagonal columnar inner tube 614. A hole for inserting the inner tube 614 is formed on the base side of the tank guard 615, and it is desirable that the inner tube 614 is inserted and then fixed by welding or the like in order to improve the strength. Further, the portion of the tank guard 615 located on the left and right sides of the large-capacity tank 610 forms an upwardly inclined portion 615a that inclines upward from the base side toward the vicinity of the center position in the front-rear direction, and is rearward from the vicinity of the center position in the front-rear direction. Has a V-shaped shape when viewed from the side, which is in a posture substantially parallel to the ground contact surface of the traveling wheel 44.

The front side and the rear side of the front-rear support plate 616 whose longitudinal direction is the front-rear direction of the machine body are connected between the rear side of the tank guard 615 and the front and rear of the inner tube 614, respectively. A front support bending portion 616a that bends upward is formed on the front side of the front-rear support plate 616, and a rear support bending portion 616b that bends upward is formed on the rear side. The rear support bending portion 616b is configured to protrude upward from the front support bending portion 616a, and the upward inclined portion 615a is located downward toward the front side of the machine body, so that the large capacity tank 610 can be easily taken in and out. Further, on the lower side of the front support bending portion 616a, specifically, on the lower side of the inner tube 614, a reinforcing bending portion 616c that bends toward the front side of the machine body is formed, and the upper surface of the reinforcing bending portion 616c is the inner tube. It is configured to be connected to the lower surface of 614. Then, in the portion between the front and rear of the front and rear support plate 616, the outside of the machine body is bent toward the lower side of the machine body to further improve the strength.

Further, the front support bending portion 616a is bent toward the front side of the machine body near the upper end portion, that is, above the position connected to the inner tube 614, and the rear support bending portion 616b is near the upper end portion, that is, the tank guard 615. It shall be bent toward the rear side of the machine on the upper side of the machine than the position connected to the rear part, making it easier to put in and take out the large capacity tank.

Then, on the front-rear support plate 616, one or a plurality of left-right support plates 617 that support the left and right sides of the large-capacity tank 610 are arranged at intervals. When one left and right support plate 617 is provided, the front-rear support plate 616 in the front-rear direction shall be arranged at the front-rear intermediate position or near the front-rear intermediate position. Left and right support bending portions 617a and 617a that bend upward are formed on both left and right sides of the left and right support plates 617, and the upper ends of the left and right support bending portions 617a and 617a are connected to the tank guard 615 by welding or the like, respectively.

The positions of the upper ends of the left and right support bending portions 617a and 617a are the same or substantially the same on the left and right, but the support bending portions 617a located on the outside of the machine body are connected within the frame of the tank guard 615 and are connected to the inside of the machine body. The positioned support bending portion 617a is configured to be connected outside the frame of the tank guard 615.

As a result, a large-capacity tank stay 618 that freely supports the large-capacity tank 610 in and out is formed.

The large-capacity tank stay 618 can be removed by pulling out the inner tube 614 from the outer tube 613. As a result, when the large-capacity tank 610 is not loaded, the large-capacity tank stay 618 can be removed to make the left-right width of the aircraft compact, so that it can be prevented from protruding from the loading platform of a light truck and can be stored when stored in a warehouse or the like. It is easy to secure space.

On the other hand, when the large-capacity tank 610 is placed and the seedlings are planted, it is naturally necessary to prevent the large-capacity tank stay 618 from coming off, but if it can be moved in the left-right direction, the weight balance will be disturbed. There is a possibility that the traveling direction of the traveling vehicle body 40 and the planting posture of the seedlings may be greatly disturbed.

In order to restrict the movement of the inner tube 614 in the left-right direction during work and to make it easy to attach and detach the large-capacity tank stay 618 when not working, a plurality of outer tubes 613 and inner tube 614 are spaced apart from each other in the left-right direction. With the adjustment holes formed and the adjustment holes of the outer tube 613 and the inner tube 614 aligned with each other, the mounting state and the removing state can be switched by attaching / detaching mounting members such as bolts and nuts.

In the above configuration, when the large capacity tank stay 618 is removed, it is necessary to store the mounting member so as not to lose it. If the mounting member is attached to the adjustment hole formed in the outer tube 613 or the inner tube 614, it can be used immediately when mounting the large capacity tank stay 618 next time, but once the nut is removed from the bolt, etc. Work is required. In addition, when the transplanter is taken back from the field, it is necessary to remove the mounting member, but if the large-capacity tank stay 618 is in a strong fastening state to prevent it from falling off during work, it cannot be removed without using a tool. It takes extra time and takes time to bring the tools to the field.

In order to deal with this problem, it is conceivable to mount the base portion of the rotating arm portion of the pipe pin on the outer tube 613 and provide the mounting pin at the end portion of the rotating arm portion. As a result, even if the mounting pin is pulled out, the rotating arm portion is provided on the outer tube 613, so that it is possible to prevent the mounting pin from being lost.

As shown in FIGS. 18 and 19, the bent portion 612a formed on the outer stay 612 is open upward except for the portion connected to the outer tube 613. A scraper plate 620 shaped like a side view is attached to and detached from the bent portion 612a, and the traveling wheel scraper 621 protrudes rearward from the scraper plate 620 toward the rear side of the machine body, that is, toward the outer peripheral surface of the traveling wheel 44. Install the amount in an adjustable manner.

By installing the traveling wheel scraper 621, the soil adhering to the traveling wheel 44 can be scraped off, so that the diameter of the traveling wheel 44 changes and the traveling direction of the traveling vehicle body 40 is disturbed, and the front and rear of the traveling vehicle body 40 It is prevented that the inclination angle changes and the planting posture of the seedling is disturbed.

Further, since the amount of protrusion of the traveling wheel scraper 621 to the rear can be adjusted, the traveling wheel 44 is excessively contacted and becomes traveling resistance, and the soil adhering to the traveling wheel 44 cannot be sufficiently removed, which is effective. Is prevented from being lost.

In order to match the shape of the outer peripheral surface of the traveling wheel 44, the rear end portion of the traveling wheel scraper 621, that is, the side in contact with the outer peripheral surface of the traveling wheel 44, has a notch on the slit, and the end portion is bent into earth and sand. It is preferable to have a structure that works.

The above-mentioned large-capacity tank stay 618 can secure the strength against a load even if it is cantilevered by making the outer tube 613 and the inner tube 614 prismatic and made of a high-density material. If the decrease is surely reduced, as shown in FIGS. 20 and 21, a collar 622 for preventing co-rotation is provided on the outer peripheral edge portion of the axle 12 of the traveling wheel 44, and the outer peripheral edge portion of the collar 622 and the front and rear are provided. A receiving ring 623 is provided at a rear position on a straight line of the support plate 616. Then, a rear extension plate 624 that enters the receiving groove 623a formed in the receiving ring 623 is attached to the front-rear support plate 616 via a fastening member.

As a result, the large-capacity tank stay 618 can be supported by using the strength of the axle 12, so that it is prevented from being damaged by the influence of the load even if it is used for a long period of time.

The water for irrigation stored in the water tank 600 is pumped up by the operation of the irrigation pump 700 provided at the bottom of the traveling vehicle body 40 and near the center of the front and rear of the aircraft, and at the positions where the planting hoppers 20a and 20b plant the seedlings. It is discharged. The irrigation pumps 700 are arranged according to the number of planting hoppers 20a and 20b, and are arranged on the left and right at intervals with respect to the left and right center portions of the traveling vehicle body 40.

A hose may be attached to the irrigation pump 700 to discharge water from the water tank 600 via the irrigation pump 700 and the water from the watering nozzle 710. However, due to the operation of the gear pump 800 of the irrigation pump 700, the water is discharged in the discharge direction. A part of the pumped water may be returned to the water tank 600 side. As a result, the amount of irrigation supplied to the field at one time is reduced, and there is a risk that the growth of seedlings may be delayed due to lack of water, or the quality of the harvested product may be deteriorated due to poor growth.

In order to prevent this, check valves 720 that limit the water supply direction to one side are provided at the lower part of the outer side of the left and right side steps 118, respectively, and the water tank 600 and the water supply side of the check valve 720 are connected by a water absorption hose 721. At the same time, the drain side of the check valve 720 and the drain nozzle 710 are connected by a drain hose 722. Further, the check valve 720 and the irrigation pump 700 are connected by a relay hose 723.

More specifically, as shown in FIG. 9, first, the water absorption check valve 724 and the drainage check valve 725 facing in the direction allowing water to be sent from the front side to the rear side of the machine are arranged one above the other, and the outer end of the side step 118 of the machine. Attach it to the bottom of the part. Then, one side of the water absorption hose 721 is allowed to enter the water tank 600, the other side is connected to the inlet of the water absorption check valve 724, that is, the front side of the machine body, and one side of the drainage hose 722 is the outlet of the drainage check valve 725. That is, it is connected to the rear side of the machine body, and the other side is connected to the drainage nozzle 710.

The irrigation pump 700 is equipped with the base side of the first relay hose 723a in the left-right direction of the machine body, and the convergence port of the three-pronged branch joint 723d is attached to the end side. A second relay hose 723b is provided between the water absorption port of the branch joint 723d and the outlet of the water absorption check valve 724 (rear side of the machine body), and the drain port of the branch joint 723d and the inlet of the drainage check valve 725 (front side of the machine body). ), A third relay hose 723c is provided.

The drainage nozzle 710 may supply water directly to the field, but irrigation is poured into the inside from the upper openings of the planting hoppers 20a and 20b with a certain amount of water force and adheres to the inside of the planting hoppers 20a and 20b. It may be configured to be used for removing the muddy soil.

This eliminates the need for a scraper that enters the inside while the planting hoppers 20a and 20b are open and removes mud, so that the number of parts can be reduced.

If the scraper draws a predetermined trajectory in conjunction with the ascent and descent of the planting hoppers 20a and 20b, the number of parts of the mechanism for ascending and descending on the predetermined trajectory can be reduced, so that the number of parts can be significantly reduced and the machine structure can be configured. Is simplified.

Further, since the mud can be returned to the field by irrigation, it is possible to prevent the outside of the field from being contaminated with the mud, and the outflow of nutrients in the field is reduced.

With the above configuration, the check valve 720 is arranged in the space on the left and right outside of the machine, so when a problem such as clogging occurs, it is easy to investigate the cause and perform maintenance work, and it is possible to reduce labor and work time. ..

Further, by arranging the water absorption check valve 724 and the drainage check valve 725 to have the same water supply direction, it is difficult to make a mistake in the mounting direction during the assembly work after disassembly, and the work efficiency is improved.

Further, by arranging the check valve 720 on the rear side of the water tank 600, on the front side of the planting hoppers 20a and 20b, and on the outside of the body of the irrigation pump 700, the water absorption hose 721, the drain hose 722, and the first relay hose are arranged. The bending of the 723a, the second relay hose 723b, and the third relay hose 723c can be minimized, and the arrangement can be arranged so as not to overlap easily.

If the water absorption check valve 724 and the drainage check valve 725 are transparent cylinders, and the internal spring and the ball for preventing backflow can be confirmed from the outside, the water supply direction can be visually recognized and mounting mistakes are less likely to occur.

The transplanting machine according to the present invention can be applied to improve the ease of getting on and off the transplanting machine for planting seedlings, and has high industrial applicability.

20a Planting hopper (planting device)
20b Planting hopper (planting device)
38 Traveling transmission case 40 Traveling vehicle body 44 Traveling wheels
610 water tank
611 inner stay
612 outer stay
613 Outer tube (receiving member)
614 inner tube (connecting member)
615 tank guard
Front and rear support plate 616
616a Front flexion support
616b Rear bending support
617 Left and right support plates
617a Support bending part
618 tank stay

Claims (3)

Water is supplied to the planting device (20a, 20b) for planting seedlings and the seedlings planted by the planting device (20a, 20b) on the traveling vehicle body (40) traveling in the field by the traveling wheel (44). In the transplantation machine provided with the irrigation device (700) and the tank stay (618) for loading the water tank (610) for storing the water used by the irrigation device (700) .
The tank stay (618) is a porting machine characterized in that the tank stay (618) is mounted so as to project outward from the traveling wheel (44). An inner stay (611) is provided inside the machine body of the traveling transmission case (38) to be transmitted to the traveling wheel (44), and the upper end portion of the inner stay (611) is projected vertically from the traveling transmission case (38). As a composition,
An outer stay (612) is provided on the outer side of the machine body of the traveling transmission case (38), and the upper end portion of the outer stay (612) is projected vertically from the traveling transmission case (38) to form the outer stay (612). A receiving member (613) is provided on the upper portion, and the receiving member (613) is brought into contact with the mounting portion on the upper portion of the inner stay (611).
The transplanting machine according to claim 1 , wherein a connecting member (614) is provided on the tank stay (618), and the connecting member (614) can be attached to and detached from the receiving member (613) . The tank stay (618) is provided with a tank guard (615) that surrounds and supports the outer periphery of the water tank (610) on the connecting member (614).
A front-rear support plate (616) is provided between the rear side of the tank guard (615) and the front and rear of the connecting member (614), and a front support bending portion that bends upward is provided on the front side of the front-rear support plate (616). (616a) is formed, and a rear support bending portion (616b) that bends upward is formed on the rear side, and at the same time,
The front and rear support plates (616) are provided with left and right support plates (617) that support the left and right sides of the water tank (610), and support bending portions (617a) are formed on the left and right sides of the left and right support plates (616). The transplanting machine according to claim 2 , wherein the transplanting machine is configured in the same manner.