transplant machine

Abstract

To provide a transplanter in which a battery can be attached to a position with excellent seedling transplanting workability where attachment / detachment are easy, and can perform the excellent seedling transplanting work by enabling proper rolling control to be automatically performed when the battery is attached to a laterally deviated position of a machine body in order to solve such a problem that a conventional transplanter does not have a battery, the power becomes temporarily insufficient with the power generation amount of an alternator by an engine, and operation of various sensors such as a lateral inclination sensor is not properly performed.SOLUTION: A transplanter which includes a seedling feeding device 60 and a seedling transplanting device 50 in a travel vehicle body 1 that performs lateral inclination control of a machine body on the basis of machine body lateral inclination detection of a lateral inclination sensor 25 comprises: left and right battery connectors 28L, 28R which are attached with a battery 5 that supplies the power to the lateral inclination sensor 25 on left and right sides of the seedling feeding device 60; and a control device which recognizes an attachment position of the battery 5 to change a zero point position of the lateral inclination sensor 25.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a transplanter for transplanting vegetable seedlings such as onions and lettuce into farm fields. [Background technology]

[0002] Conventionally, there is a transplanter having a seedling supplying device and a seedling planting device mounted on a traveling body equipped with an engine and various sensors such as a left-right tilt sensor for detecting the left-right tilt of the machine body (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-069338 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional transplanters are not equipped with a battery, and the amount of power generated by the engine alternator may be temporarily insufficient, which may prevent various sensors, such as the left-right tilt sensor, from operating properly.Furthermore, if the drive unit is an electric actuator, the amount of power generated will be constantly insufficient.

[0005] The present invention has been made in consideration of the above, and aims to provide a transplanter that can perform good seedling transplanting work by enabling the battery to be attached in a position that is easy to attach and detach and that can automatically perform appropriate rolling control when the battery is attached in a position offset to the left or right of the machine body. [Means for solving the problem]

[0006] The invention described in claim 1 is a transplanter having a seedling supply device 60 and a seedling planting device 50 mounted on a traveling body 1 that controls the left and right tilt of the machine by activating a left and right tilt control actuator based on the left and right tilt detection of the machine body by a left and right tilt sensor 25, in which a left battery connector 28L and a right battery connector 28R for attaching batteries 5 that supply power to the left and right tilt sensor 25 are provided on both the left and right sides of the seedling supply device 60, and a control device is provided that recognizes the installation position of the battery 5 and changes the zero point position of the left and right tilt sensor 25.

[0007] According to the invention described in claim 1, the left battery connector 28L and the right battery connector 28R for attaching the battery 5 that supplies power to the left-right tilt sensor 25 are provided on both the left and right sides of the seedling supply device 60, so that the battery 5 can be installed in a position that is convenient for seedling transplanting work, and the battery 5 can also be easily attached and detached.

[0008] In addition, a control device is provided that recognizes the installation position of the battery 5 and changes the zero point position of the left-right tilt sensor 25, so that the rolling control that keeps the machine horizontal on the left and right using the left-right tilt control actuator based on the left-right tilt detection of the machine body by the left-right tilt sensor 25 operates properly, allowing for good seedling planting.

[0009] The invention described in claim 2 is a transplanter in which a seedling planting device 50 and left and right spare seedling carriers 70L, 70R are provided on a traveling body 1 that controls the left and right tilt of the machine body by operating a left and right tilt control actuator based on the detection of the left and right tilt of the machine body by a left and right tilt sensor 25, and a battery connector 72L for the left spare seedling carrier and a battery connector 72R for the right spare seedling carrier are connected to the left and right spare seedling carriers. 70L, 70R The transplanter is provided with a control device that recognizes the mounting position of the battery 5 and changes the zero point position of the left and right tilt sensor 25.

[0010] According to the invention described in claim 2, the battery connector 72L for the left spare seedling carrier and the battery connector 72R for the right spare seedling carrier are connected to the left and right spare seedling carriers. 70L, 70RSince the battery 5 is provided at each of the positions, the battery 5 can be attached at a position that is convenient for seedling transplanting work, and the battery 5 can be easily attached and detached.

[0011] In addition, a control device is provided that recognizes the installation position of the battery 5 and changes the zero point position of the left-right tilt sensor 25, so that the rolling control that keeps the machine horizontal on the left and right using the left-right tilt control actuator based on the left-right tilt detection of the machine body by the left-right tilt sensor 25 operates properly, allowing for good seedling planting.

[0012] The invention as set forth in claim 3 is the transplanter as set forth in claim 1 or claim 2, wherein a front battery support frame 73 provided at the front of the traveling body 1 is provided with a front battery connector 74 for attaching the battery 5 thereto.

[0013] According to the invention described in claim 3, in addition to the effects of the invention described in claim 1 or claim 2, a front battery connector 74 for attaching the battery 5 is provided on the front battery support frame 73 provided at the front of the traveling body 1, which increases the number of mounting positions for the battery 5 and allows the battery 5, which is a heavy object, to be used as a front weight, thereby stabilizing the fore-and-aft balance of the vehicle body.

[0014] The invention as set forth in claim 4 is the transplanter as set forth in claim 1 or claim 2, which is provided with a detachable battery connector 75.

[0015] According to the invention described in claim 4, in addition to the advantageous effects of the invention described in claim 1 or claim 2, a detachable battery connector 75 is provided, which improves workability by positioning the connector in a position that does not interfere with the worker's work when transplanting seedlings.

[0016] The invention as set forth in claim 5 is the transplanter as set forth in claim 3, which is provided with a detachable battery connector 75.

[0017] According to the invention described in claim 5, in addition to the advantageous effects of the invention described in claim 3, a detachable battery connector 75 is provided, which improves workability by positioning the connector in a position that does not interfere with the worker's work when transplanting seedlings.

[0018] The invention described in claim 6 is a transplanter described in claim 1 or claim 2, in which the drive wheels 7L, 7R of the traveling body 1 are driven by traveling electric motors 6L, 6R, the seedling planting device 50 is driven by a planting electric motor 24, and an operating unit 43 equipped with a traveling speed setting operating device 43a and a planting speed setting operating device 43b which respectively operate the output of the traveling electric motors 6L, 6R and the planting electric motor 24 is provided at the rear of the traveling body 1.

[0019] According to the invention described in claim 6, in addition to the effects of the invention described in claim 1 or claim 2, the drive wheels 7L, 7R of the traveling body 1 are driven by the traveling electric motors 6L, 6R, the seedling planting device 50 is driven by the planting electric motor 24, and an operation unit 43 equipped with a traveling speed setting operation device 43a and a planting speed setting operation device 43b that operate the output of the traveling electric motors 6L, 6R and the planting electric motor 24, respectively, is provided at the rear of the traveling body 1.Therefore, the output of the traveling electric motors 6L, 6R and the planting electric motor 24 can be operated by the traveling speed setting operation device 43a and the planting speed setting operation device 43b, respectively, of the operation unit 43 provided at the rear of the traveling body 1, and the planting spacing, etc. can be set precisely and with good operability.

[0020] The invention described in claim 7 is a transplanter described in claim 3, in which the drive wheels 7L, 7R of the traveling body 1 are driven by traveling electric motors 6L, 6R, the seedling planting device 50 is driven by a planting electric motor 24, and an operating unit 43 equipped with a traveling speed setting operating device 43a and a planting speed setting operating device 43b which respectively operate the output of the traveling electric motors 6L, 6R and the planting electric motor 24 is provided at the rear of the traveling body 1.

[0021] The invention described in claim 8 is a transplanter described in claim 4, in which the drive wheels 7L, 7R of the traveling body 1 are driven by traveling electric motors 6L, 6R, the seedling planting device 50 is driven by a planting electric motor 24, and an operating unit 43 equipped with a traveling speed setting operating device 43a and a planting speed setting operating device 43b which respectively operate the output of the traveling electric motors 6L, 6R and the planting electric motor 24 is provided at the rear of the traveling body 1.

[0022] The invention described in claim 9 is a transplanter described in claim 5, in which the drive wheels 7L, 7R of the traveling body 1 are driven by traveling electric motors 6L, 6R, the seedling planting device 50 is driven by a planting electric motor 24, and an operating unit 43 equipped with a traveling speed setting operating device 43a and a planting speed setting operating device 43b which respectively operate the output of the traveling electric motors 6L, 6R and the planting electric motor 24 is provided at the rear of the traveling body 1. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a plan view of a transplanter according to an embodiment of the present invention. FIG. [Figure 2] FIG. [Figure 3] FIG. 2 is a plan view of the main parts of the traveling body of the transplanter. [Figure 4] FIG. 2 is a side view of the detachable battery connector of the transplanter. DETAILED DESCRIPTION OF THE INVENTION

[0024] Preferred embodiments of the present invention will now be described with reference to the drawings.

[0025] A transplanter according to one embodiment of the present invention will be described below. In the following description, the side where the control handle 2 is located will be referred to as the rear, and the opposite side, i.e., the side where the engine 3 is located, will be referred to as the front. The right-hand side facing the front of the machine will be referred to as the right, and the left-hand side will be referred to as the left.

[0026] This transplanter is equipped with a traveling body 1 that allows the machine to travel forward, a control handle 2 for walking and steering provided at the rear of the traveling body 1, a seedling planting device 50 that plants seedlings in the field, and a seedling supplying device 60 that supplies seedlings to the seedling planting device 50.

[0027] The traveling vehicle body 1 is equipped with an engine 3, an alternator 4 that generates electricity using the power of the engine 3, a battery 5 that stores the electricity generated by the alternator 4, left and right rear wheels 7L, 7R that are drive wheels that are driven and rotated by left and right traveling electric motors 6L, 6R (which may be in-wheel motors) that operate on the power of the battery 5, and left and right front wheels 8L, 8R that are supported in front of the left and right rear wheels 7L, 7R so that they can roll freely.

[0028] A main frame 9 is arranged behind the engine 3, and the front parts of left and right case bodies 10L, 10R for traveling, which are long in the front-rear direction, are rotatably attached to the left and right parts of the front part of the main frame 9, and the left and right case bodies 10L, 10R are rotatably attached to both the left and right sides of the main frame 9, respectively.

[0029] Left and right rear wheels 7L, 7R are mounted on left and right axles 12, 12 protruding laterally from the rear of left and right case bodies 10L, 10R for running.

[0030] Left and right lids 10a are provided on the upper portions of the left and right case bodies 10L, 10R so as to be freely openable and closable, and two batteries 5 can be housed inside each of the left and right lids 10a by opening them.

[0031] The battery 5 housed in the left and right case bodies 10L, 10R stores the electric power generated by the alternator 4 and outputs the electricity to the left and right electric traveling motors 6L, 6R.

[0032] Power is transmitted from the left and right electric motors 6L, 6R to the left and right axles 12, 12 via left and right transmission mechanisms 11L, 11R, so that the left and right rear wheels 7, 7 are driven to rotate.

[0033] Further, the left and right case bodies 10L, 10R are connected to a driving means that rotates up and down so as to move the left and right rear wheels 7L, 7R up and down around the front sides of the left and right case bodies 10L, 10R as a rotation fulcrum.

[0034] Specifically, left and right arms 13L, 13R extending upward are integrally attached to the mounting portions of the left and right case bodies 10L, 10R to the main frame 9, and these are connected to the left and right sides of a connecting body attached to the tip of a piston rod of an electric lifting cylinder (not shown) fixed to the main frame 9. One of the left and right sides (the right side) is connected by a rod, and the other side (the left side) is connected by an electric left and right tilt control cylinder (not shown) that serves as a left and right tilt control actuator that can expand and contract in accordance with the tilt of the machine body.

[0035] When the lifting electric cylinder is activated and its piston rod projects rearward, the left and right arms 13L, 13R rotate rearward, causing the left and right case bodies 10L, 10R to rotate downward, and the machine rises. Conversely, when the piston rod of the lifting electric cylinder moves forward and retracts into the cylinder, the left and right arms 13L, 13R rotate forward, causing the left and right case bodies 10L, 10R to rotate upward, and the machine descends.

[0036] This electric lifting cylinder is operated by a ground sensor that is in contact with the ridge surface and operates in accordance with changes in the vertical distance between the machine body and the ridge surface. The operation of the ground sensor is to detect the height of the ridge top surface relative to the machine body, and the electric lifting cylinder is configured to operate based on the detection operation of the ground sensor so that the machine body is at a set height relative to the ridge top surface height.

[0037] The machine is also configured so that an electric lifting cylinder operates to manually raise or lower the machine body by manually operating the planting / lifting operation tool 15 located near the control handle 2. The planting / lifting operation tool 15 is also configured to turn on and off the drive of the seedling planting device 50 and the seedling supply device 60.

[0038] When the electric cylinder for left-right tilt control extends or retracts, the left arm 13L connected to the electric cylinder for left-right tilt control rotates, moving only the left rear wheel 7 up and down and tilting the machine body left or right. This electric cylinder for left-right tilt control operates to keep the machine body horizontal based on the detection results of the left-right tilt sensor 25 installed in the center of the machine body left and right.

[0039] The left and right front wheels 8L, 8R are rotatably attached to axles 18 fixed to the sides of the lower end of a vertically long vertical frame 17 attached to the left and right sides of a horizontal frame 16 that is attached so as to be rotatable about a longitudinal axis at a left-right central position below the engine 3. Therefore, the left and right front wheels 8L, 8R are free to roll about a longitudinal axis at the left-right central position of the vehicle. The vertical frames 17 are attached to the left and right sides of the horizontal frame 16 so as to be adjustable up and down, allowing the height of the front wheels 8 to be adjusted.

[0040] The steering handle 2 is provided at the rear of the vehicle body, and is located rearward of the left and right axles 12, 12 of the left and right rear wheels 7L, 7R.

[0041] Specifically, the control handle 2 is attached to the rear end of the machine frame 19, the front end of which is fixed to the main frame 9.

[0042] The vehicle frame 19 extends rearward from a position offset to the left from the center of the vehicle's left and right sides, and also extends diagonally upward and rearward from the midpoint between the front and rear. The steering handle 2 extends rearward on both sides from the rear end of the vehicle frame 19, with each rear end serving as the left and right grip portions 2L, 2R of the steering handle 2.

[0043] Left and right rear wheel drive stop levers 20L, 20R are provided below the left and right grip portions 2L, 2R to stop the operation of the left and right electric travel motors 6L, 6R and to allow the left and right rear wheels 7L, 7R to rotate freely.

[0044] Therefore, when turning the vehicle, by gripping and operating the left or right rear wheel drive stop lever 20L, 20R on the turning direction side, the left or right traveling electric motor 6L (6R) on the gripped side is stopped, and the left or right rear wheel 7L (7R) on the inside of the turn is put into a non-driven state, allowing for smooth turning.

[0045] The seedling planting device 50 comprises a beak-shaped seedling planting body 21 with its tip pointing downward, a vertical movement mechanism 22 for moving the seedling planting body 21 up and down between a position where the lower end of the seedling planting body 21 is above the field surface and a position where the lower end of the seedling planting body 21 is below the field surface, and an opening / closing mechanism for opening and closing the seedling planting body 21 between a closed state where the lower end of the beak-shaped seedling planting body 21 is closed to receive seedlings from above and store seedlings inside, and an open state where the lower end of the seedling planting body 21 is open to the left and right to release the seedlings stored inside downward.

[0046] The seedling supply device 60 includes a plurality of seedling containers 23 that receive seedlings from above and store them inside, a moving mechanism that moves the seedling containers 23 in a circular motion so that they pass above the seedling planting body 21, and an opening mechanism that serves as a seedling drop supply mechanism that opens the bottom of the seedling container 23 above the seedling planting body 21 to drop the seedlings stored inside and supply the seedlings to the seedling planting body 21.

[0047] The seedling planting device 50 has a single row planting configuration in which one seedling planting body 21 is arranged at the center position on the left and right of the machine body.

[0048] The seedling planting body 21 is attached to a vertical movement mechanism 22 provided on the right side of a planting transmission case 26, which is driven via a planting transmission shaft 24a by a planting electric motor 24 provided on the main frame 9. The planting transmission case 26 is fixed onto the machine frame 19.

[0049] The vertical movement mechanism 22 has upper and lower lifting links whose front section is attached to the planting transmission case 26 so as to be freely rotatable up and down, and whose rear section is connected to the seedling planting body 21. A separately provided drive mechanism uses power from within the planting transmission case 26 to move the upper and lower lifting links up and down, causing the seedling planting body 21 to move up and down. In the raised position, the lower end of the seedling planting body 21 is located above the field surface, and in the lowered position, the lower end of the seedling planting body 21 is located below the field surface.

[0050] The opening and closing mechanism of the seedling planting body 21 is operated by power from inside the planting transmission case 26, and is linked to the operation of the up-and-down movement mechanism 22, so that when the seedling planting body 21 reaches the lowermost position, the lower side of the seedling planting body 21 opens forward and backward to be in an open state downward, and when the seedling planting body 21 reaches the uppermost position of the raised position, the lower side of the seedling planting body 21 closes to be in a closed state.

[0051] The vertical movement mechanism 22 of the seedling planting body 21 arranged at the lateral center of the machine body is provided on the right side of the seedling planting body 21 opposite to the side where the machine body frame 19 is provided at a position offset leftward from the lateral center of the machine body, so that the lateral balance of the machine body is stable.

[0052] The seedling supply device 60 comprises a plurality of seedling containers 23, each having a cylindrical body that opens at the top and bottom and a bottom lid that opens and closes the lower opening of the cylindrical body, which are connected to each other in a loop like an endless chain; a moving mechanism that moves the seedling containers 23 counterclockwise in a loop-shaped trajectory that is long in the left-right oval shape when viewed from above the body, while passing near the top of the seedling planting body 21; an opening mechanism that opens the bottom lids of the seedling containers 23 above the seedling planting body 21; and a flat plate 27 that serves as a cover that guides and covers the inner periphery of the plurality of seedling containers 23 connected in a loop shape.

[0053] The opening mechanism of the seedling supply device 60 is configured by providing a support that supports the bottom lid from below to prevent it from rotating downward below the orbit of the seedling container 23, and by not providing this support above the seedling-planting body 21, when the seedling container 23 passes above the seedling-planting body 21, the bottom lid is released from its support and rotates downward, allowing the seedlings in the seedling container 23 to fall downward. The timing at which the bottom lid of the seedling container 23 opens is adjusted so that it opens when the seedling-planting body 21 rises to directly below the seedling container 23.

[0054] A left / right tilt sensor 25 is provided below the flat plate 27, and a central battery connector 28C, a left battery connector 28L, and a right battery connector 28R are provided on the top surface at the center and both left and right ends to mount and fix batteries 5 thereon for inputting and outputting electricity.

[0055] Since the left-right tilt sensor 25 is provided at the center position of the left and right of the vehicle, the difference in the left-right weight balance of the vehicle is relatively small and deviation in the detected values ​​is unlikely to occur, thereby improving the accuracy of rolling control (left-right tilt control).

[0056] The worker places and fixes the battery 5 in one of the central battery connector 28C, the left battery connector 28L, and the right battery connector 28R, whichever is most convenient for work, and inputs and outputs electricity.

[0057] This transplanter is provided with soil-covering press wheels 37 for pressing down the soil on the seedlings planted by the seedling-planting body 21 at positions near both the left and right sides behind the seedling-planting area of ​​the seedling-planting body 21.

[0058] The soil cover roller 37 is freely rotatably mounted on a soil cover roller support frame 39 whose front part is pivotally supported on the main frame 9 so as to be vertically rotatable.

[0059] The soil cover suppression wheel support frame 39 has a U-shaped rear side in a plan view, and is constructed by appropriately bending a pipe frame.

[0060] The lower end of a rod 40 extending in the vertical direction is connected to the rear end of the soil-covering wheel support frame 39, and the upper part of the rod 40 is passed through the tip of a pipe-shaped left and right frame 41 extending to the right from the machine body frame 19, which is located at a position offset to the left from the center of the machine body, so that it can move freely up and down.

[0061] Therefore, the soil-covering and compacting wheels 37 are supported so as to be freely movable up and down on the left and right frames 41 extending to the right from the body frame 19, which is located at a position offset to the left from the center of the body, so that they can be supported so as to be able to move up and down along the ridges by utilizing the empty space on the right side of the body frame 19.

[0062] A liquid crystal panel 42 and an operation unit 43 are provided at the center of the left and right of the control handle 2, and a small battery 5a is mounted and fixed to the machine frame 19 as a power source for inputting and outputting electricity.

[0063] Since the small battery 5a is mounted and fixed in the empty space near the machine frame 19, the empty space can be used to provide the small battery 5a and supply power to the liquid crystal panel 42 and the operation unit 43.

[0064] The operating unit 43 is provided with a travel speed setting dial 43a as a travel speed setting operating tool for setting the maximum rotation speed of the left and right travel electric motors 6L, 6R, a planting speed setting dial 43b as a planting speed setting operating tool for setting the maximum rotation speed of the planting electric motor 24, and a zero point setting dial 43c for setting the zero point of the left and right tilt sensor 25.

[0065] The zero point setting dial 43c can move the zero point of the left-right tilt sensor 25 left and right, so that, for example, when planting in a field that is tilted left and right, good rolling control (left-right tilt control) can be achieved by setting the zero point taking into account the tilt of the field.

[0066] By combining the travel speed setting using the travel speed setting dial 43a and the planting speed setting using the planting speed setting dial 43b, precise spacing between plants can be set.

[0067] A throttle lever 44 for the engine 3 is provided near the right grip portion 2R of the steering handle 2.

[0068] A throttle actuation electric motor that operates the throttle of the engine 3 is provided near the engine 3, and the amount of operation is detected by a potentiometer provided in the throttle lever 44, and the throttle actuation electric motor is operated in accordance with the amount of operation to operate the throttle.

[0069] The engine 3 simply drives the alternator 4, and the electricity generated by the alternator 4 is stored in the battery 5. The battery 5 then drives the left and right traveling electric motors 6L, 6R, the planting electric motor 24, the lifting electric cylinder, the left and right tilt control electric cylinder, the throttle operating electric motor, etc., and provides operating power for various sensors such as the ground sensor detection unit, the left and right tilt sensor 25, and the potentiometer.

[0070] This transplanter is provided with an operator's seat 46 so that an operator can sit on the seedling supply device 60 to supply seedlings and perform seedling supply work.

[0071] Specifically, an operator's seat 46 is arranged facing backward at the center of the left and right sides of the machine body, which is the front side of the seedling supplying device 60.

[0072] The worker sitting on this seat 46 sits in a rearward facing position toward the front part of the seedling supply device 60 and performs seedling supply work on the front part of the seedling supply device 60, particularly the front linear portion of the circular movement path of the seedling container 23.

[0073] In addition, the transplanter in this example has a work space W formed to the right outside in the left-right direction of the control handle 2 located at the rear of the machine, behind the right rear wheel 7R that runs along the furrows, which allows an operator to stand and walk forward while supplying seedlings to the rear part of the seedling supply device 60, and an operator standing in this work space W can perform seedling supply work on the rear part of the seedling supply device 60.

[0074] Steps 49 are provided on the rear and both the left and right sides of the operator's seat 46. These steps 49 extend from a position below the operator's seat 46 to a position above the front wheel 8, i.e., near the front end of the machine body, when viewed from the side of the machine body. Therefore, the operator can get on and off the steps 49 via the front of the machine body.

[0075] A lower boarding / alighting step 49a is provided on the left side of the front end of the step 49. An operator can easily get on and off the step 49 from the lower boarding / alighting step 49a. The boarding / alighting step 49a is provided on the left side in the left-right direction of the machine body, the same as the machine body frame 19, which is provided in a position offset to the left from the center of the machine body.

[0076] Left and right spare seedling carriers 70L and 70R are provided on both the left and right sides of the operator's seat 46.

[0077] The left and right spare seedling carriers 70L, 70R are provided on top of left and right spare seedling carrier support frames 71L, 71R whose bases are fixed to both the left and right sides of the front of the main frame 9.

[0078] The left and right spare seedling carrier support frames 71L, 71R are provided with a left spare seedling carrier battery connector 72L and a right spare seedling carrier battery connector 72R in their middle portions for mounting and fixing a battery 5 thereon for inputting and outputting electricity.

[0079] The operator places and fixes the battery 5 on both the left spare seedling carrier battery connector 72L and the right spare seedling carrier battery connector 72R or on either one which is easier to work with, and inputs and outputs electricity from the battery 5.

[0080] At the front end of the traveling vehicle body 1, a front battery support frame 73 that also serves as a front bumper is extended from the center position on the front left and right of the main frame 9 toward the front of the vehicle body, and a front battery connector 74 is provided at the front end of the front battery support frame 73 to support and fix the battery 5 and input and output electricity.

[0081] The battery 5 supported and fixed to the front battery connector 74 also functions as a front weight.

[0082] Also provided is a detachable battery connector 75 that can be moved and installed anywhere on the aircraft.

[0083] For example, as shown in FIG. 1, a detachable battery connector 75 for mounting and fixing the battery 5 and inputting and outputting electricity is provided on the step 49 on the right side of the machine body in front of the seedling supplying device 60.

[0084] The detachable battery connector 75 has long input and output lines that run underneath the step 49 to connect the coupler 76a to couplers 76b of the input and output lines of the alternator 4, various drive units, and sensors.

[0085] Therefore, the detachable battery connector 75 can be provided in a position that is convenient for the worker when transplanting seedlings and does not interfere with the work, thereby improving workability.

[0086] The above-mentioned central battery connector 28C, left battery connector 28L, right battery connector 28R, left spare seedling carrier battery connector 72L, right spare seedling carrier battery connector 72R, front battery connector 74 and detachable battery connector 75 have power outlets on the top, and the power plug of the battery 5 is inserted into the power outlet and secured in place.

[0087] In addition, the central battery connector 28C, left battery connector 28L, right battery connector 28R, left spare seedling tray battery connector 72L, right spare seedling tray battery connector 72R, front battery connector 74 and detachable battery connector 75 are connected to the alternator 4 and various drive units and sensor units via their input / output lines.

[0088] The batteries 5 are attached to the central battery connector 28C, left battery connector 28L and right battery connector 28R provided on the flat plate 27 arranged on the inner periphery of the multiple seedling containers 23 connected in a loop shape of the seedling supply device 60, or the left spare seedling carrier battery connector 72L and right spare seedling carrier battery connector 72R provided on the left and right spare seedling carriers 70L, 70R, at positions that are easy for the worker to work with and do not interfere with the work when the worker is transplanting seedlings.

[0089] The central battery connector 28C, left battery connector 28L and right battery connector 28R provided on the flat plate 27 arranged on the inner periphery of the multiple seedling containers 23 connected in a loop shape of the seedling supply device 60, or the left spare seedling tray battery connector 72L and right spare seedling tray battery connector 72R provided on the left and right spare seedling trays 70L and 70R, can utilize the available space to attach batteries 5, and the batteries 5 can be easily attached and detached.

[0090] Furthermore, when a battery 5 is attached to the central battery connector 28C or both the left battery connector 28L and the right battery connector 28R provided on the seedling supply device 60, or when a battery 5 is attached to both the left spare seedling carrier battery connector 72L and the right spare seedling carrier battery connector 72R provided on the left and right spare seedling carriers 70L and 70R, the left and right weight balance of the machine is not disturbed.

[0091] However, if a battery 5 is attached to only one of the left battery connector 28L and the right battery connector 28R provided on the seedling supply device 60, or if a battery 5 is attached to only one of the left spare seedling carrier battery connector 72L and the right spare seedling carrier battery connector 72R provided on the left and right spare seedling carriers 70L and 70R, the left and right weight balance of the machine will be disrupted, and the rolling control (left and right tilt control) that keeps the machine level left and right using the left and right tilt control electric cylinder based on the left and right tilt detection of the machine body by the left and right tilt sensor 25 will no longer function properly.

[0092] Therefore, when the battery 5 is attached only to the left battery connector 28L of the seedling supply device 60 or the left spare seedling carrier battery connector 72L of the left spare seedling carrier 70L, the control device recognizes the position of the battery 5 and changes the zero point position of the left / right tilt sensor 25 a predetermined amount to the left of the set position, thereby ensuring that the rolling control (left / right tilt control) that keeps the machine horizontal left and right using the left / right tilt control electric cylinder based on the left / right tilt detection of the machine body by the left / right tilt sensor 25 operates properly.

[0093] In addition, when the battery 5 is attached only to the right battery connector 28R of the seedling supply device 60 or the right spare seedling carrier battery connector 72R of the right spare seedling carrier 70R, the control device recognizes the position of the battery 5 and changes the zero point position of the left-right tilt sensor 25 a predetermined amount to the right of the set position, thereby ensuring that the rolling control (left-right tilt control) for leveling the body left and right using the left-right tilt control electric cylinder based on the left-right tilt detection of the body by the left-right tilt sensor 25 operates properly. [Explanation of symbols]

[0094] 1 Running vehicle 5 Battery 6L Left-hand electric motor 6R Right-hand electric motor 7L Drive wheel (left rear wheel) 7R drive wheel (right rear wheel) 24 Planting electric motor 25 Left and right tilt sensor 28L left battery connector 28R Right Battery Connector 43 Operation section 43a Travel speed setting operation device (travel speed setting dial) 43b Planting speed setting operation device (planting speed setting dial) 50 Seedling planting device 60 Seedling feeding device 70L Left spare seedling tray 70R Right spare seedling tray 72L Left spare seedling carrier battery connector 72R Right spare seedling carrier battery connector 73 Front battery support frame 74 Front Battery Connector 75 Removable battery connector

Claims

1. A transplanter is provided with a seedling supplying device (60) and a seedling planting device (50) on a traveling vehicle body (1) that controls the left and right tilt of the machine body by operating a left and right tilt control actuator based on the left and right tilt detection of the machine body by a left and right tilt sensor (25), The transplanter is characterized in that a left battery connector (28L) and a right battery connector (28R) for attaching a battery (5) that supplies power to the left-right tilt sensor (25) are provided on both the left and right sides of the seedling supply device (60), and a control device is provided that recognizes the attachment position of the battery (5) and changes the zero point position of the left-right tilt sensor (25).

2. A transplanter is provided with a seedling planting device (50) and left and right spare seedling carriers (70L, 70R) on a traveling body (1) that controls the left and right tilt of the machine body by operating a left and right tilt control actuator based on the left and right tilt detection of the machine body by a left and right tilt sensor (25), The transplanter is characterized in that a left spare seedling carrier battery connector (72L) and a right spare seedling carrier battery connector (72R) for mounting a battery (5) that supplies power to the left and right tilt sensors (25) are provided on the left and right spare seedling carriers (70L, 70R), respectively, and a control device is provided that recognizes the mounting position of the battery (5) and changes the zero point position of the left and right tilt sensors (25).

3. 3. A transplanter according to claim 1 or claim 2, characterized in that a front battery connector (74) for attaching the battery (5) is provided on a front battery support frame (73) provided at the front of the traveling body (1).

4. 3. A transplanter according to claim 1 or 2, characterized in that it is provided with a detachable battery connector (75).

5. 4. A transplanter according to claim 3, characterized in that it is provided with a detachable battery connector (75).

6. 3. A transplanter according to claim 1 or claim 2, characterized in that the drive wheels (7L, 7R) of the traveling body (1) are driven by traveling electric motors (6L, 6R), the seedling planting device (50) is driven by a planting electric motor (24), and an operating unit (43) equipped with a traveling speed setting operating device (43a) and a planting speed setting operating device (43b) for operating the outputs of the traveling electric motors (6L, 6R) and the planting electric motor (24), respectively, is provided at the rear of the traveling body (1).

7. 4. The transplanter according to claim 3, wherein the driving wheels (7L, 7R) of the traveling body (1) are driven by the traveling electric motors (6L, 6R), the seedling planting device (50) is driven by the planting electric motor (24), and an operating unit (43) equipped with a traveling speed setting operating device (43a) and a planting speed setting operating device (43b) for operating the outputs of the traveling electric motors (6L, 6R) and the planting electric motor (24), respectively, is provided at the rear of the traveling body (1).

8. 5. The transplanter according to claim 4, wherein the drive wheels (7L, 7R) of the traveling body (1) are driven by the traveling electric motors (6L, 6R), the seedling planting device (50) is driven by the planting electric motor (24), and an operating unit (43) equipped with a traveling speed setting operating device (43a) and a planting speed setting operating device (43b) for operating the outputs of the traveling electric motors (6L, 6R) and the planting electric motor (24), respectively, is provided at the rear of the traveling body (1).

9. The transplanter according to claim 5, characterized in that the drive wheels (7L, 7R) of the traveling body (1) are driven by traveling electric motors (6L, 6R), the seedling planting device (50) is driven by a planting electric motor (24), and an operating unit (43) equipped with a traveling speed setting operating device (43a) and a planting speed setting operating device (43b) for operating the outputs of the traveling electric motors (6L, 6R) and the planting electric motor (24), respectively, is provided at the rear of the traveling body (1).

Images