Riding transplanter

Abstract

To provide a transplanter that reduces load on an operator and improves working efficiency.SOLUTION: A sulky transplanter 1 is configured as a vehicle to be towed which is connected to a traction vehicle A installed with a drive force source and includes: a central transmission mechanism M for transmitting drive force received from the traction vehicle A to planting devices B respectively disposed in right and left sides of the machine body; and a slide mechanism J for enabling the planting devices B to be slidable on the right and left sides. Each of the planting devices B is configured to be vertically rotatable and includes: a press wheel b19 for pressing a ridge; and an inclination sensor for detecting right and left inclinations of the press wheel b19. A control unit C acquires detection information from the inclination sensor and controls the slide mechanism J to enable the planting devices B to slide on the right and left sides when the press wheel b19 inclines by a first specified angle or more.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a transplanter for transplanting crops into a field. [Background technology]

[0002] Conventionally, as a transplanter of this kind, for example, the one described in Patent Document 1 has been known. This conventional transplanter is configured so that an operator walks behind the machine and sequentially loads the transplants into the transport device, which then transports the transplants, and the transported transplants are then transplanted into the field by the planting device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-116529 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional transplanters require the operator to load the transplants into the transport device while walking, which places a heavy burden on the operator. In addition, because the operator must work while walking, there is a risk of failure in loading, which reduces work efficiency.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a transplanter which can reduce the burden on an operator and improve work efficiency. [Means for solving the problem]

[0006] In order to achieve the above object, the first invention provides: The vehicle is configured as a towed vehicle coupled to a towing vehicle equipped with a driving force source, A central transmission mechanism that transmits the driving force received from the towing vehicle to the planting devices disposed on the left and right sides of the vehicle body; A slide mechanism that allows the planting device to slide left and right, The planting device is configured to be rotatable up and down and includes a suppressing wheel for suppressing the ridges and an inclination sensor for detecting the left and right inclination of the suppressing wheel; A ride-on transplanter is provided, characterized in that a control unit is configured to acquire detection information from the tilt sensor and, when the crushing wheel is tilted at a first specified angle or more, control the sliding mechanism to slide the planting device left and right.

[0007] According to the first aspect of the present invention, By configuring it as a towed vehicle, the burden on the worker can be reduced. In addition, by controlling the slide mechanism to slide the planting device left and right when the crushing wheels are tilted at a first specified angle or more, the worker does not have to align the left and right positions, which improves work efficiency and enables stable planting.

[0008] The second invention has the same configuration as the first invention, as well as: a transport device for transporting the transplant to a planting supply location; an operator seat provided at the rear of the transport device, The present invention provides a riding transplanter, characterized in that the conveying belt of the conveying device is bent toward the inside of the machine body by a tension roller.

[0009] According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, The operator seat allows the operator to work in a seated position, improving work accuracy and ensuring a range for the operator's legs to move while seated.

[0010] The third invention has the following features in addition to the features of the first or second invention: The present invention is provided with a rolling mechanism for rolling the machine body, a rotatable soil cover wheel for covering and compacting the soil in which the transplants are planted, and a rotation angle sensor for detecting the rotation angle of the soil cover wheel, The control unit is configured to acquire detection information from the rotation angle sensor, and when the soil covering wheel rotates more than a second specified angle, control the rolling mechanism to rotate the machine body in a direction that reduces the rotation angle of the soil covering wheel.

[0011] According to the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, This can prevent the transplant from being planted in a tilted position to the left or right, and as a result, the growth of the transplant can be stabilized.

[0012] The fourth invention is, in addition to the configuration of the second or fourth invention, The present invention provides a riding transplanter, characterized in that a drive wheel for supporting the load of the operator's seat is provided below the operator's seat.

[0013] According to the fourth invention, in addition to the effects of the second or fourth invention, the weight of the worker is prevented from interfering with the up and down rotation of the planting device, and the forward and backward tilt of the planting device is suppressed, thereby improving planting accuracy.

[0014] The fifth aspect of the present invention, in addition to the configuration of the second or fourth aspect of the present invention, is as follows: The operator seats are disposed on the left and right sides of the central transmission mechanism, Furthermore, a planting operator's seat is provided in the center of the left and right operator's seats, where a worker who performs planting work sits, The riding transplanter is characterized in that the transplanter's seat does not have a backrest and is disposed rearward of the operator's seat.

[0015] According to the fifth aspect of the present invention, in addition to the effects of the second or fourth aspect of the present invention, The burden on the planter is reduced, and the planter's seat does not have a backrest, so the planter's body movement forward and backward is not hindered, improving work efficiency. In addition, because it is located behind the worker's seat, the planter can easily check the clamping part to see if planting is appropriate, and can easily determine whether or not planting is necessary. In addition, the planter is less likely to come into contact with the clamping part during work, reducing labor.

[0016] The sixth aspect of the present invention, in addition to the configuration of the second aspect of the present invention, is as follows: The present invention provides a riding transplanter characterized in that a storage section for storing transplanted plants and a platform on which materials can be placed are disposed in front of the operator's seat, spare storage sections for storing spare transplants are disposed on the left and right sides, and a visor frame for supporting a sunshade visor is provided at the rear of the operator's seat.

[0017] According to the sixth aspect of the present invention, in addition to the effects of the second aspect of the present invention, The provision of the storage section and spare storage section improves work efficiency. The provision of a mounting stand improves convenience. The provision of a visor frame that supports the sunshade visor at the rear of the operator's seat allows the sunshade visor to be installed with improved strength without interfering with the operator's work. Effect of the Invention

[0018] According to the present invention, a transplanter that can reduce the burden on an operator and improve work efficiency can be provided. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a schematic left side view of a riding transplanter. [Diagram 2] FIG. 2 is a schematic rear view of the riding transplanter. [Diagram 3] FIG. 3 is a schematic rear view of the rolling mechanism. [Figure 4] FIG. 4 is a partially sectional plan view of the central transmission mechanism, the slide rotation mechanism, and the left and right planting devices. [Diagram 5] FIG. 5 is a partial side view of the planting device and its surroundings. [Figure 6] FIG. 6 is a plan view showing the planting clamping tool. [Figure 7] FIG. 7 is a rear view of the left transport device. [Figure 8] FIG. 8 is a control block diagram of the control unit of the riding transplanter. [Figure 9]FIG. 9 is a perspective view of the vicinity of the planting device of the riding transplanter. [Figure 10] FIG. 10 is a perspective view of the vicinity of the transport device of the riding transplanter. [Figure 11] FIG. 11 is a perspective view of a clip for a riding transplanter according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a schematic left side view of a riding transplanter 1 according to a preferred embodiment of the present invention, and Fig. 2 is a schematic rear view thereof. Here, the riding transplanter 1 according to this embodiment performs the function of transplanting crops, including sweet potato seedlings, into a farm field.

[0021] As shown in FIG. 1, the riding transplanter 1 is configured as a towed vehicle coupled to a towing vehicle A equipped with a driving force source. By configuring it as a towed vehicle, the burden on the operator can be reduced. In the following description, the direction in which the towing vehicle A is located relative to the body of the riding transplanter 1 is defined as the front, and the opposite direction is defined as the rear. Furthermore, facing forward, the right hand is defined as the right direction, and the left hand is defined as the left direction. Note that the definitions of these directions themselves do not limit the configuration of the present invention. In addition, the following description will be given of the case in which the transplant is a sweet potato seedling.

[0022] <Towing vehicle configuration> The towing vehicle A is a so-called agricultural tractor, and is equipped with at least an engine a1 as the driving force source. The power of the engine a1 is output from the PTO shaft a4 through a clutch in a clutch case a2 and a transmission in a transmission case a3, and is transmitted to the riding transplanter 1 connected to the rear of the vehicle body through a joint a5 connecting the PTO shaft a4 and the input shaft of the riding transplanter 1. The towing vehicle A is equipped with front wheels a6, rear wheels a7, a driver's seat a8, a steering wheel a9, etc. The riding transplanter 1 is connected to the towing vehicle A by a lift arm a10, a lift rod a11, a lower link (not shown), a top link (not shown), etc. The cabin a12 covering the driver's seat a8 is equipped with a sunshade roof a13 at the rear of the cabin a12, which can be opened and closed to be deployed backward.

[0023] <Basic configuration of riding transplanter> As shown in Figures 1 and 2, the basic components of the ride-on transplanter 1 include a body frame K that forms the skeleton of the machine body, left and right planting devices B, B for planting sweet potato seedlings in the field, left and right transport devices D, D for transporting sweet potato seedlings to the planting devices B, a central transmission mechanism M arranged in the left and right center of the machine body and transmitting driving force to the left and right planting devices B, B, a rolling mechanism R arranged in front of the central transmission mechanism M and enabling the machine body to roll, and a slide rotation mechanism J (see Figure 4) interposed between the central transmission mechanism M and the planting devices B and enabling the planting devices B to slide left and right and rotate up and down.

[0024] The machine body frame K is formed of a rigid frame material, to which the rolling mechanism R is connected, and to which the transport device D and the central transmission mechanism M are fixed. Furthermore, a support frame k1 is erected on the machine body frame K, and a sunshade visor k2 is provided on this support frame k1. A sloping portion k3 having a downward slope toward the front is provided at the front portion of the sunshade visor k2, and is configured not to interfere with the opening and closing of the sunshade roof a13.

[0025] The lower part of the machine frame K is provided with left and right support wheels k3, k3 that can be freely rotated, and on the left and right support wheels k3, k3, there are provided an operator seat k4 on which the operator sits, and an auxiliary step k5 that assists the operator in getting on and off the operator seat k4, and the support wheels k3 are configured to support the load of the operator seat k4. This allows the operator to work while seated on the operator seat k4, improving the work accuracy. The left and right support wheels k3, k3 may be driven wheels by providing a wheel drive device (in-wheel motor) that applies driving force to the support wheels k3, k3. This configuration prevents the planting device B from being hindered from turning up and down due to the weight of the operator, and improves the planting accuracy by suppressing the forward and backward inclination of the planting device B.

[0026] The operator's seat k4 is provided with a left-right mounting position adjustment mechanism, and the mounting position can be adjusted left-right with respect to the support wheel k3. This left-right mounting position adjustment mechanism is configured, for example, by fixing a mounting stay with the left-right direction as the longitudinal direction on the support wheel k3, providing multiple mounting holes along the longitudinal direction of this mounting stay, and having the operator select one of the mounting holes and bolt the operator's seat k4.

[0027] Between the left and right sides of the operator seat k4, Supplementary Workers who do planting work ( Supplementary The planter sits down. Supplementary The pilot seat k6 is fixed to the rear of the aircraft frame K. Supplementary The planter's seat k6 is located rearward of the operator's seat k4. Supplementary Planter seat K6 Supplementary The structure has been designed without a backrest so as not to interfere with planting work. Supplementary The planter's seat k6 is located behind the operator's seat k4. Supplementary After the planter confirms whether or not the clamped part b33 is to be planted, Supplementary This makes it easier to determine whether implantation is necessary, and the configuration makes it difficult to come into contact with the clamping portion b33 during work, thereby reducing the effort required.

[0028] Above the left and right conveying devices D, D, a loading platform k7 on which materials can be placed is fixed to the machine frame K, and on the loading platform k7, storage units (seedling containers) k8, k8 for storing sweet potato seedlings before transplanting are disposed on the left and right, respectively. In addition, an irrigation tank k9 is disposed so as to be sandwiched between the left and right storage units k8, k8.

[0029] In addition, the auxiliary step k5 may be provided with a step-on switch pedal, and a buzzer or the like may be sounded when the switch pedal is operated to notify the driver of the towing vehicle A. This allows the operator seated in the operator seat k4 to notify those around him of any trouble that may occur, such as when the supply of sweet potato seedlings is not in time.

[0030] In addition, a visor frame k10 that supports the sunshade visor k2 is disposed at the rear of the worker's seat k4, thereby improving the strength of the sunshade visor k10 without interfering with the worker's work.

[0031] <Rolling mechanism configuration> FIG. 3 is a schematic rear view of the rolling mechanism R. The riding transplanter 1 has a rolling mechanism R that swings the machine body around a rolling axis X1. The machine body frame K of the riding transplanter 1 is configured to be freely swingable around the rolling axis X1 of the rolling axis X with respect to the towing vehicle A.

[0032] As shown in Fig. 3, the rolling mechanism R has a rolling motor r1, a rolling roller r2, and a rope r3. The rolling motor r1 and the rolling roller r2 are disposed above the rolling axis X1. Although not shown, the right end of the rope r3 is connected to the right side of the main frame K (i.e., the body of the riding transplanter 1), and the left end of the rope r3 is connected to the right side of the main frame K.

[0033] The rolling motor r1 is composed of an electric motor that can rotate forward and backward. The power of the rolling motor r1 is transmitted to the rolling roller r2 via a transmission mechanism (gear transmission mechanism) r4. The transmission mechanism r4 has a first gear r5 that is rotationally driven by the power of the rolling motor r1, and a second gear r6 that meshes with the first gear r4.

[0034] When the rolling motor r1 rotates the rolling roller r2 in one direction, forward or reverse, For example, when the rolling roller r2 is rotated in the clockwise direction in FIG. 3, the left side of the rope r3 is pulled. This causes the main frame K to swing in the clockwise direction in FIG. 2 around the rolling axis X1. When the rolling motor r1 rotates the rolling roller r2 in the forward or reverse direction (counterclockwise direction in FIG. 2), the right side of the rope r3 is pulled. This causes the main frame K to swing in the counterclockwise direction in FIG. 2 around the rolling axis X1. In this way, the rolling mechanism R is capable of controlling the rolling of the body of the riding transplanter 1 by controlling the rolling motor r1. The rolling mechanism R may be provided so as to be capable of rolling by controlling a hydraulic cylinder instead of the rolling motor r1.

[0035] <Configuration of central transmission mechanism> 4 is a partially sectional plan view of the central transmission mechanism M, the slide rotation mechanism J, and the left and right planting devices B, B. The central transmission mechanism M receives power from the joint a5 and transmits it to the left and right planting devices B, B by branching off to the left and right.

[0036] The central transmission mechanism M functions to transmit driving force to the left and right planting devices B, B. The central transmission mechanism M includes a main shaft m2 rotatably supported by a branch transmission case m1. The main shaft m2 is an input shaft that receives power from a joint a5 and rotates. The power of the main shaft m2 is transmitted to the left and right branch shafts m4, m4, respectively, by a pair of bevel gears m3, m3 that mesh with each other.

[0037] <Configuration of slide rotation mechanism> The slide rotation mechanism J functions to enable the planting devices B to slide left and right and to rotate up and down. As shown in Fig. 4, the slide rotation mechanism J is interposed between the planting devices B on the left and right sides of the central transmission mechanism M, respectively.

[0038] The slide rotation mechanism J comprises, on the left and right sides, a rotating case j1 rotatably attached to the branch transmission case m1 of the central transmission mechanism M, a sliding case j2 mounted on the rotating case j1 so as to be slidable in the left-right direction, and a side case j4 to which the planting device B is connected. An extendable transmission shaft j3 that is extendable and contractible in its own axial direction is arranged in the rotating case j1 and the sliding case j2, and a planting device transmission shaft j5 that transmits power to the planting transmission device B is arranged in the side case j4.

[0039] The telescopic transmission shaft j3 rotates integrally with the branch shaft m4 and transmits power to the planting device transmission shaft j5. Furthermore, the planting device transmission shaft j5 is connected to the input shaft of the planting device B and is configured to transmit power to the planting device B.

[0040] The slide rotation mechanism J also includes a rotation cylinder j6 fixed to the side of the branch transmission case m1, and the tip of the extension side of the rotation cylinder j6 is rotatably connected to the rotation case j1. As a result, when the rotation cylinder j6 extends or retracts, the rotation case j1 rotates, and as a result, the planting device B moves up and down, making it possible to adjust the planting height.

[0041] Furthermore, the slide rotation mechanism J is provided with a left-right sliding cylinder j7 that is fixed inside the rotating case j1 and has a telescopic end connected to the slide case j2. As a result, when the left-right sliding cylinder j7 telescopically expands and contracts, the slide case j2 slides left and right, and as a result, the planting device B slides left and right.

[0042] With the above configuration, the slide rotation mechanism J can rotate the planting device B up and down by controlling the rotation cylinder j6, and can slide the planting device B left and right by controlling the left and right sliding cylinder j7.

[0043] Furthermore, the slide rotation mechanism J is equipped with a rotation cylinder j6 fixed to the side of the branch transmission case m1, and the tip of this rotation cylinder j6 is rotatably connected to the rotation case j1. As a result, when the rotation cylinder j6 expands and contracts, the rotation case j1 rotates, and as a result, the planting device B moves up and down.

[0044] <Configuration of planting device> The planting device B receives power from the planting device transmission shaft j5 of the slide rotation mechanism J, and serves to plant the sweet potato seedlings transported by the transport device D in the field.

[0045] The planting device B includes a planting transmission case b1 that transmits power to the planting link mechanism b2, the planting link mechanism b2 that performs the planting operation of the planting clamp b1, and a planting clamp b3 that clamps and plants the sweet potato seedlings.

[0046] FIG. 5 is a partial side view of the planting device B and its surroundings. As shown in Figures 4 and 5, the planting transmission case b1 has a first case part b12 whose front part is connected to the rear part of the planting device transmission shaft j5 of the slide rotation mechanism J and receives power from the planting device input shaft b11, a second case part b13 fixed to the first case part b12 and receives power from the first case part b12, and a third case part b14 fixed to the left end part of the second case part b13, receives power from the second case part b13, and transmits power to the planting link mechanism b2.

[0047] In addition, the third case part b14 is arranged to be freely rotatable in the vertical direction through a predetermined rotation angle (for example, 30° upward from the horizontal) around the planting clutch shaft b15, which is the input shaft of the third case part b14. As a result, the planting device B and the conveying device D are freely rotatable up and down through a predetermined rotation angle together with the third case part b14, with the central transmission mechanism M as the reference.

[0048] The third case portion b14 is provided with a support frame portion b16 fixed to the third case portion b14 and extending rearward. A pair of left and right soil cover wheels b18 are provided from the rear end of the support frame portion b16 via a soil cover wheel mounting frame b17. The soil cover wheels b18 are free-wheeling wheels that come into contact with the soil surface and cover and compress the soil in which the sweet potato seedlings are planted. Therefore, the left and right pair of soil cover wheels b18 come into contact with the soil surface, and the planting device B and the seedling transport unit D swing within a predetermined rotation angle range in accordance with the unevenness of the field surface, so that the planting depth relative to the soil surface is maintained constant. Although not shown, the soil cover wheel b18 is provided with a rotation angle sensor S3 that detects the rotation angle. As a result, the up and down movement of the soil cover wheel b18 can be detected by detecting the rotation angle.

[0049] Furthermore, between the pair of left and right soil covering wheels b18, b18, a pressure reducing wheel b19 is provided to reduce the soil in which the sweet potato seedlings are planted. The pressure reducing wheel b19 has a smaller diameter than the soil covering wheel b18, and is attached to a pressure reducing wheel mounting frame b20 that is provided on the support frame b16 so as to be able to rotate up and down. Although not shown, the left and right pressure reducing wheels b19, b19 are each provided with a ridge detection sensor S1 that detects the grounding of the pressure reducing wheel b19 and an inclination sensor S2 that detects the left and right inclination of the attitude of the pressure reducing wheel b19. When the planting position is near the top of the ridge, the pressure reducing wheel b19 is in a horizontal position.

[0050] In addition, a scraper b4 made of an elastic rubber plate is provided near the planting clamp b3. The scraper b4 has two notches on the left and right sides, and the left and right planting clamps b3 enter the notches to remove soil adhering to both the left and right sides of the left and right seedling planting clamps b3.

[0051] The planting link mechanism b2 is composed of a drive arm b21 that is driven to rotate by transmission from the third case part b14, a support link part b22 whose front end is connected to the drive arm b21, and a swing link b23 that connects the rear end of the support link part b22 to the support frame b16.

[0052] FIG. 6 is a plan view showing the planting clamp b3. The planting clamping tool b3 is composed of a pair of clamping tool holders b32 connected to a connecting shaft b31 supported by the support link part b22, a pair of clamping parts b33 fixed to the tip of the clamping tool holder b32 for clamping sweet potato seedlings, and a bearing b34 provided on the opposite side of the clamping part b33 of the clamping tool holder b32. When the driving arm b21 is driven to rotate, the pair of clamping tool holders b32 rotate around the connecting shaft b31 with respect to each other, and the pair of clamping parts b33 opens and closes.

[0053] The planting clamping device b3 is equipped with an opening / closing cam b35 that rotates integrally with the drive arm b21, and the pair of clamping portions b33 are biased in the closing direction by a spring b36. However, when a protrusion b37 on the side of the opening / closing cam b35 comes into contact with the bearing b34, the distance between the pair of clamping portions b33 becomes wider.

[0054] When the opening / closing cam b35 rotates, near the bottom dead center of the planting trajectory, the protrusion of the opening / closing cam b35 comes into contact with the bearing b34, causing the pair of clamping portions b33 to open. Thereafter, when the clamping portion b33 reaches the planting supply position P (see Figure 7), the bearing b34 passes the protrusion b37 and is biased by the spring b36 between the pair of clamping tool holders b32, causing the tip portion to move in the closing direction and clamp the lower end of the vine of the sweet potato seedling at the planting supply position P. The planting clamp b3 operates by tilting its front-to-back posture forward so that the tip of the planting clamp moves backward while clamping the seedling with the clamping portion b33 and burying it in the soil until it reaches the bottom dead point of the planting trajectory, as the drive arm b21 rotates. When the seedling reaches the bottom dead point, the protrusion b37 of the opening / closing cam b35 comes into contact with the bearing b34 again, opening the tips of the pair of clamping portions b33, and releasing the clamped sweet potato seedling so that it can be transplanted into the soil.

[0055] <Conveyor device configuration> 7 is a rear view of the left conveying device D. The right conveying device D has the same basic configuration, so the left conveying device D will be described below, and a description of the right conveying device D will be omitted.

[0056] As shown in FIG. 7, the conveying device D is configured to convey sweet potato seedlings by rotating a conveying belt d2 on which clips d1 that clamp the sweet potato seedlings with brush bristles, sponge or the like are provided at predetermined intervals.

[0057] The conveyor belt d2 is endlessly wound around a drive roller d3 that rotates the conveyor belt d2, a first driven roller d4 provided below the drive roller d3, and a second driven roller d5 provided on the outer side of the machine body relative to the drive roller d3 so as to form a substantially triangular shape when viewed from the front (rear). Although not shown, the drive roller d3 rotates by power branched off from the central transmission mechanism M.

[0058] As a result, the conveying belt d2 is equipped with an upper lateral feed section d21 which feeds the clips d1 laterally toward the inside of the machine body at the upper side of the machine body, a downward feed section d22 which feeds the clips d1 conveyed by the upper lateral feed section d21 downwardly of the machine body, and an upward feed section d23 which feeds the clips d1 conveyed by the downward feed section 5b upwardly again of the machine body.

[0059] In addition, a tension roller d6 is provided in the middle of the upward feed section d23 to deflect the seedling transport belt toward the inside of the machine body, which creates space at the feet of the operator's seat k4 and prevents the upward feed section d23 from interfering with the rear wheel a7 or the feet of the operator seated on the operator's seat k4. As a result, the operator seated on the operator's seat k4 can move his / her feet within a certain range. In addition, basket-shaped spare storage sections d7, d7 for storing spare sweet potato seedlings are provided on the left and right sides of the upward feed section d23, respectively.

[0060] <Control Unit Configuration> FIG. 8 is a control block diagram of the control unit C of the riding transplanter 1. The control unit C is configured with a CPU that performs calculation processing and a memory that can read and write information necessary for the calculation processing, and various functions are realized by the CPU operating in accordance with various control programs stored in the memory.

[0061] A ridge detection sensor S1, a tilt sensor S2, and a rotation angle sensor S3 are connected to the input side of the control unit C, and it is possible to obtain detection information from these.

[0062] The output side of the control unit C is connected to the rolling motor r1 of the rolling mechanism R, the rotation cylinder j6 of the slide rotation mechanism J, and the left-right sliding cylinder j7, so that these mechanisms can be controlled.

[0063] The control unit C acquires the detection / detection information of the ridge detection sensor S1 and the tilt sensor S2, and when either the left or right suppression wheel b19 is not on the ground or is tilted at a first specified angle (e.g., 30°) or more, it controls the left or right sliding cylinder j7 in the corresponding left or right direction, and slides the planting device B back and forth within the movable range to the left or right (e.g., first starts sliding toward the outside of the machine body, and when it reaches the outer end of the movable range, switches the sliding direction and slides toward the inside of the machine body) until the above condition is no longer met. As a result, if the suppression wheel b19 is not at an inclination angle near the horizontal in a grounded state, the left and right positions of the planting device B are automatically adjusted, so that the transplant can be stably planted near the top of the ridge. In addition, the operator does not need to perform left and right positioning, improving work efficiency.

[0064] In addition, the control unit C acquires the detection information of the rotation angle sensor S3, and when either the left or right soil cover wheel b18 rotates by a second specified angle (for example, ±20° based on the horizontal) or more, controls the rolling motor r1 to rotate the machine in a direction to reduce the rotation angle of the corresponding soil cover wheel b18 in either the left or right direction (for example, when the soil cover wheel b18 is at a position of +10° upward based on the horizontal, it moves downward by rolling). This prevents the transplant from being planted at an angle. As a result, the growth of the transplant can be stabilized. In addition, by deliberately not controlling the rolling motor r1 for small vertical rotations, excessive reaction to small vertical movements that can be handled by floating can be prevented.

[0065] At this time, the control unit C may be configured to rotate the planting device B in a direction that reduces the rotation angle of the soil covering wheel b18 in the corresponding direction, either left or right, by controlling the rotation cylinder j7 instead of the left and right sliding cylinder j7.

[0066] <Air nozzle configuration> FIG. 9 is a perspective view of the vicinity of the planting device B of the riding transplanter 1 according to the preferred embodiment of the present invention. As shown in FIG. 9, in a preferred embodiment of the present invention, the clamping part b33 of the planting device B is provided with an air nozzle b5 that sprays air toward the claws at the tip. Furthermore, the timing of spraying air from the air nozzle b5 is set to the timing when the clamping part b33 grabs the sweet potato seedlings from the clip d1 of the transport device D after clamping the sweet potato seedlings. In addition, the air is sprayed so that the nozzle does not accumulate soil when the claws at the tip of the clamping part b33 enter the soil. The air is sprayed by compressing an air pump by driving the clamping part b33 and using it for blowing air.

[0067] <Conveyor belt configuration> FIG. 10 is a perspective view of the vicinity of the transport device D of the riding transplanter 1 according to the preferred embodiment of the present invention. As shown in Fig. 10, in a preferred embodiment of the present invention, a guard d8 for adjusting the height of sweet potato seedlings is provided on the conveyor belt d2 of the conveyor device D. Furthermore, a seedling height adjustment marker d9 is provided near the clip d1. This seedling height adjustment marker d9 is configured so that its front-rear position can be adjusted so that the position at which the sweet potato seedlings are gripped by the claws at the tip of the clamping part b33 can be adjusted.

[0068] <Clip composition> FIG. 11 is a perspective view of a clip d1 of the riding transplanter 1 according to a preferred embodiment of the present invention. As shown in Fig. 11, in a preferred embodiment of the present invention, the central portion of the seedling clamping brush d10 of the clip d1 is formed in a concave shape, which makes it easier for an operator to clamp (set) a sweet potato seedling in the clip d1. Also, the direction of the bristles of the seedling clamping brush d10 is configured to face downward on the paper surface of Fig. 11. As a result, when a sweet potato seedling is pushed from above into the clamping brush d10 to be clamped, the seedling pushed in by hand moves while pushing aside the brush bristles, so that it can be easily set, and there is no time-consuming task of setting the sweet potato seedling, improving work efficiency.

[0069] Furthermore, when the seedlings being transported after being set reach the vertical transport area or the upside-down sweet potato seedling removal position P, even if the seedlings try to move out of the clamping brush d10 due to gravity, the brush bristles prevent the seedlings from moving, preventing the seedlings from falling during transport and causing areas where the seedlings are not planted. At the removal position P, the planting clamping tool b3 clamps the seedlings with mechanical force and pulls them out to the rear of the machine, so the brush bristles are configured not to provide sufficient resistance to pulling out the seedlings that would cause them to be missed.

[0070] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the invention described in the claims, and it goes without saying that these modifications are also included within the scope of the present invention. [Explanation of symbols]

[0071] 1. Riding transplanter A Towing vehicle a1 engine a2 clutch case a3 transmission case a4 PTO axis a5 Joint part a6 front wheel a7 rear wheel a8 Driver's seat a9 Steering wheel a10 lift arm a11 Lift rod a12 cabin a13 Sunshade roof C control section R Rolling mechanism r1 rolling motor r2 Rolling roller r3 chordate r4 Transmission mechanism r5 1st gear r6 2nd gear M Central transmission mechanism m1 Branch transmission case m2 Branch shaft J Slide rotation mechanism j1 Rotating case j2 slide case j3 Telescopic transmission shaft j4 Side case j5 Planting device transmission shaft j6 Rotating cylinder j7 Left and right slide cylinder K Aircraft frame k1 support frame k2 Sunshade visor k3 support wheel k4 Operator seat k5 Boarding and alighting steps k6 Supplementary Planter seat k7 Mounting stand k8 Storage section k9 Irrigation tank k10 by the frame B Planting device b1 Planting transmission case b2 Planting link mechanism b3 Planting clamp b4 scraper b5 Air nozzle b11 Planting device input shaft b12 First case part b13 Second case part b14 Third case part b15 Planting clutch shaft b16 Support frame b17 Soil cover wheel mounting frame b18 Covering ring b19 Crushing wheel b20 Crushing wheel mounting frame b21 Drive arm b22 Support link part b23 Swing link b31 Connection shaft b32 Clamp holder b33 Clamping part B34 Bearing b35 Opening and closing cam b36 spring b37 protrusion D. Conveyor device d1 Clip d2 Conveyor belt d3 Drive roller d4 First driven roller d5 Second driven roller d6 Tension roller d7 Reserve storage section d8 Guard d9 Seedling height adjustment marker d10 Seedling holding brush d21 Upper cross feed section d22 Down feed section d23 Rising feed section S1 Ridge detection sensor S2 Tilt Sensor S3 Rotation Angle Sensor

Claims

1. A towed vehicle coupled to a towing vehicle equipped with a driving force source, A central transmission mechanism that transmits the driving force received from the towing vehicle to the planting devices disposed on the left and right sides of the vehicle body; A slide mechanism that allows the planting device to slide left and right, The planting device is configured to be rotatable up and down and includes a suppressing wheel for suppressing the ridges and an inclination sensor for detecting the left and right inclination of the suppressing wheel; The control unit is configured to control the slide mechanism to slide the planting device left and right when the crushing wheel is inclined by a first specified angle or more by acquiring detection information from the tilt sensor, a transport device for transporting the transplant to a planting supply location; an operator seat provided at the rear of the transport device, A riding transplanter characterized in that the conveyor belt of the conveyor device is deflected toward the inside of the machine body by a tension roller.

2. The present invention is provided with a rolling mechanism for rolling the machine body, a rotatable soil cover wheel for covering and compacting the soil in which the transplants are planted, and a rotation angle sensor for detecting the rotation angle of the soil cover wheel, The riding transplanter described in claim 1, characterized in that the control unit is configured to control the rolling mechanism and rotate the body in a direction to reduce the rotation angle of the soil covering wheel when the soil covering wheel rotates more than a second specified angle by acquiring detection information from the rotation angle sensor.

3. 2. The riding transplanter according to claim 1, further comprising a driving wheel for supporting the load of the operator's seat, the driving wheel being disposed below the operator's seat.

4. The operator seats are disposed on the left and right sides of the central transmission mechanism, Furthermore, a planting operator's seat is provided in the center of the left and right worker's seats, where a worker who performs planting work sits, 4. The riding transplanter according to claim 1, wherein the operator's seat does not have a backrest and is disposed rearward of the operator's seat.

5. 2. The riding transplanter according to claim 1, further comprising a storage section for storing transplanted plants and a platform on which materials can be placed, disposed in front of the operator's seat, spare storage sections for storing spare transplants are disposed on the left and right sides, and a visor frame for supporting a sunshade visor is provided at the rear of the operator's seat.

Images