JP2015029436A - Seedling transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanting machine in which a planting state of seedling at machine rearward and the side can be confirmed without the movement of a worker, and thereby the planting accuracy can be improved and the labor required for the work is reduced.SOLUTION: A seedling transplanting machine is configured by: providing a seedling loading member 51 for loading seedling at the rearward of a traveling vehicle body 2; providing a planting unit 52 for taking the seedling out of the seedling loading member 51 and planting it in the field; providing a seedling photographing member 73 for photographing the seedling loaded on the seedling loading member 51 and the seedling planted at the machine rearward; providing a movement support mechanism 74 for moving the seedling photographing member 73 in the lateral direction of the seedling loading member 51; moving the seedling photographing member 73 in the lateral direction using the movement support mechanism 74 and photographing the planting position of the seedling of the side end part of the seedling loading member 51, when an operation member 34 for steering the traveling vehicle body 2 is operated for turning and traveling; and displaying the seedling photographed by the seedling photographing member 73 in a display device 76.

Description

  The present invention relates to a seedling transplanting machine in which a transplanting part for planting seedlings in a farm field is provided at the rear part of a riding type traveling vehicle body capable of traveling in the field so as to be movable up and down.

  As shown in Patent Document 1 or Patent Document 2, a seedling transplanting machine is known in which a transplanting part is provided at the rear part of a riding-type traveling vehicle body capable of traveling in a field so as to be movable up and down. The transplanting section consists of a seedling tank that mounts a seedling mat for each planting line and feeds seedlings in order to the rear end of each seedling, and a planting device that transplants seedlings taken out from the rear end of this seedling tank to the field Then, the transplanting part is lowered to the farm scene to perform planting, and the transplanting part is raised to the non-working position to perform turning and moving.

  When planting, the operator operates the aircraft along the planned line for planting while checking the remaining amount of seedlings in the seedling tank at the rear of the aircraft and the planting status behind the aircraft. When the remaining seedling supply in the seedling tank has decreased, it is necessary to stop the planting operation and replenish the seedling tank with the mat seedling from the spare stand. A seedling tank is provided with a remaining amount sensor. By this remaining amount sensor and the seedling reduction warning, planting can be advanced without incurring a stock loss.

  In addition, the remaining amount sensor of the seedling tank is not limited to the decrease of the supplied seedlings, but widely detects seedling supply abnormalities such as mat seedling up, mat seed tearing, and detection unit failure. It can respond to each situation. In other words, if the number of seedlings decreases, preparation for replenishing seedlings, and in the case of abnormal supply such as mat seedling up or tearing down, take appropriate actions such as descending from the fuselage and correcting the position of the mat seedlings or closing the intervals. Therefore, planting can be promoted without incurring a stock loss.

JP 2009-232809 A JP 2008-092881 A

  However, in order to determine the seedling situation at the rear end of the seedling tank, it is necessary to stop the planting run, get up from the cockpit, and rely on the operator's visual judgment. Even if it is an alarm, since it is necessary to confirm that there is no supply abnormality, there is a problem that the planting traveling must be stopped each time an alarm occurs, resulting in a decrease in work efficiency.

  In addition, if the planting end position before turning and the planting start position after turning are misaligned due to the inability to visually recognize the rear of the aircraft, and the seedling protrudes to the edge of the field, the so-called headland, the seedling is placed on the headland. When planting, there is a problem that the seedling is crushed with a wheel or the seedling is replanted at the same position, resulting in excessive consumption of the seedling.

  Alternatively, if the seedling planting end position or planting start position is away from the headland, seedlings will not be planted in places where seedlings need to be planted, so the operator will need to plant seedlings manually. There is a problem that the labor of the worker increases.

An object of the present invention is to provide a seedling transplanting machine that can grasp the status of the seedlings supplied at the rear end of the seedling tank without stopping the planting operation when a seedling reduction warning is transmitted. .
Another object of the present invention is to provide a seedling transplanting machine in which the planting positions of seedlings before and after turning are aligned to suppress the consumption of extra seedlings and the operator can omit the work of planting seedlings.

  The invention according to claim 1 is provided with a seedling loading member (51) for loading seedlings on the rear part of the traveling vehicle body (2), and planting the seedlings from the seedling loading members (51) and planting them in a field. A seedling photographing member (73) for photographing a seedling loaded on the seedling loading member (51) and a seedling planted on the rear side of the machine body, and providing the seedling photographing member (73) of the seedling loading member (51) In the seedling transplanter provided with the moving support mechanism (74) for moving in the left-right direction, when the turning operation is performed by operating the operating member (34) for steering the traveling vehicle body (2), the seedling photographing member is moved by the moving support mechanism (74). (73) is moved in the left-right direction to photograph the seedling planting position at the side end of the seedling stacking member (51), and the seedling photographed by the seedling photographing member (73) is displayed on the display device (76). The seedling transplanter was characterized by this.

  In the invention according to claim 2, the seedling photographing member (73) is moved to the left and right one side position (P1) and the left and right other side position (P3) of the seedling loading member (51) by the moving support mechanism (74). The mounting member direction for photographing the seedling loaded on the seedling loading member (51) from the planting side direction (D3) for photographing the seedling planted at the rear of the seedling loading member (51). The seedling transplanting machine according to claim 1, wherein the photographing direction is switchable between (D1) and (D1).

Further, when the predetermined time has elapsed, the state detection member rotates backward to detect the state after planting the seedling, so that the operation of the operator can be prevented from becoming complicated.
According to a third aspect of the present invention, the moving support mechanism (74) includes the left and right support columns (81, 81) provided in the planting devices (52, 52) at the left and right ends, and the left and right support columns (81, 81). The rotating transmission mechanism (82) that movably supports the seedling photographing member (73) between them, and the drive actuator (82a) that is connected and driven at one of the left and right ends of the rotating transmission mechanism (82). A seedling transplanting machine according to claim 1 or claim 2 characterized in that.

  According to a fourth aspect of the present invention, a traveling wheel (11) is provided on the traveling vehicle body (2), a movement detection member (77) for detecting a movement distance of the traveling wheel (11) is provided, and the movement detection member (77) is provided. ), And the movement support mechanism (74) moves the seedling photographing member (73) between the left and right one side position (P1) and the left and right other side position (P3). When the distance detecting member (77) detects the set distance recorded in the control unit (C) after the vehicle body (2) is turned, the seedling is detected. The photographing member (73) moves from the left / right one side position (P1) or the left / right other side position (P3) to the center position (P2), and the photographing direction of the seedling photographing member (73) is the planting side direction (D3). 4. The method according to any one of claims 1 to 3, wherein: It was of seedling transplanting machine.

  In the invention according to claim 5, the seedling loading member (51) is provided with a seedling reduction detecting member (71) for detecting that the loaded seedling has become less than a predetermined amount, and the seedling reduction detecting member (71). When the is in the detection state, the shooting direction of the seedling photographing member (73) is switched to the placement member direction (D1) for photographing the seedling loading surface of the seedling loading member (51). The seedling transplanter according to any one of the above items was used.

  The invention according to claim 6 is provided with an operation lever (78) for performing forward and backward movement of the traveling vehicle body (2) and raising / lowering operation of the seedling loading member (51), and a planting device (52) is provided on the operation lever (78). When a planting operation member (79) for turning on and off is provided and the planting operation member (79) is continuously operated for a predetermined time, the traveling body (2) is moved forward and backward without moving forward and backward. The seedling transplanting machine according to any one of claims 1 to 5, wherein the seedling is planted by operating 52).

  By using the state sensing member as a photographing device, the operator can visually sense the state after planting the seedling and the state of the placed seedling.

  According to the first aspect of the present invention, the planting position of the seedlings on the left and right sides of the seedling stacking member (51) is displayed on the display device (76) after the traveling vehicle body (2) is turned. Since the planting end position before turning can be confirmed without looking at the rear, the planting start position after turning and the planting end position before turning are aligned.

  This prevents the planting position of the seedling from being too close to the work position at the end of the field, the so-called headland side, so that when the seedling is planted in the headland, the traveling vehicle body (2) crushes the seedling. Or, the planting device (52) is prevented from planting a seedling once again at the position where the seedling is planted, and the consumption of the seedling is suppressed.

  Alternatively, since the planting position of the seedling can be prevented from being too far from the headland, the operator does not need to manually plant the seedling in a place where the seedling is not planted, and the labor of the worker is reduced.

  In addition, since it is not necessary for the operator to stop the traveling vehicle body (2) and go to see the seedling in order to see the planting end position before turning, the time during which the planting operation is interrupted is shortened, and the work efficiency is reduced. Will improve.

  In addition to the effect of the invention described in claim 1, the seedling photographing member (73) is configured so that the right and left one side position (P1) and the left and right other side position (P3) of the seedling loading member (51) are added. ), The seedling photographing member (73) can photograph a wide area around the planting end position before turning and the planting start position after turning, so that the operator can obtain information. The amount increases and it becomes easy to match the planting end position and the planting start position, and the planting accuracy of the seedling is improved.

  In addition, the seedling photographing member (73) has a planting side direction (D3) behind the seedling loading member (51) and a placement member direction (D1) for photographing the seedling loaded on the seedling loading member (51). By switching the photographing direction, the display device (76) can be used not only for confirming the planting of the seedlings behind the machine body but also for confirming the seedlings placed on the seedling loading member (51). The operator can confirm the remaining amount of the seedlings placed on the stacking member (51) and whether or not the seedlings are placed in a normal posture without moving, and work efficiency is improved.

Furthermore, since a section in which seedlings cannot be planted is prevented from occurring due to lack of seedlings or disturbance in loading posture, the operator does not need to manually plant seedlings.
In the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the support (81, 81) of the moving support mechanism (74) is provided in the planting device (52, 52). Thus, the seedling photographing member (73) can be brought close to the lower part of the seedling loading member (51) or the farm scene, so that the photographing accuracy of the seedling planting state is improved and accurate information is displayed on the display device (76). Thus, the operator can easily adjust the seedling planting start position to the planting end position, and can easily determine whether or not the seedling planting is normal.

Thereby, when it is judged that there is a problem in the seedling planting posture and planting interval, it is possible to cope with it immediately, so that the seedling planting accuracy is improved.
In addition to the effect of the invention according to any one of claims 1 to 3, the movement support mechanism (74) moves the seedling photographing member (73) to the center position (P2). By making it possible, it is possible to photograph the seedling placement side of the rear of the machine body and the seedling placement side of the seedling stacking member (51) in the left-right direction, so a range that is not displayed on the display device (76) occurs. It becomes difficult, and it becomes easy for an operator to grasp the planting state and placement state of the seedling, and the planting accuracy and work efficiency of the seedling are improved. Further, after the turn is finished, the distance for detecting the moving distance of the traveling wheel (11) When the detection member (77) detects the movement of a predetermined distance, the movement support mechanism (74) automatically moves the seedling photographing member (73) to the center position (P2), so that the operator can see the seedling photographing member (73). ) No need to move, improving operability and work efficiency .

  In addition to the effect of the invention according to any one of claims 1 to 4, the invention according to claim 5 is a seedling photographing member (73) when the seedling reduction detection member (71) detects a decrease in seedlings. Automatically switches to the state of photographing the placement member direction (D1), so that the operator does not have to interrupt the work and go to see the seedling loading surface of the seedling loading member (51). improves.

  In addition, since it is possible to know that it is time to replenish seedlings due to a change in the image displayed on the display device (76), the operator continues the work while the seedlings are cut, and the worker is in a section where the seedlings are not planted. However, since the work of planting seedlings by hand is unnecessary, the labor of the operator is reduced.

  Then, from the image displayed on the display device (76), whether the remaining amount of seedlings has decreased and the seedling reduction detection member (71) has been in the detection state, or the seedling reduction posture has been disturbed, the seedling reduction detection Since it is possible to determine whether the member (71) has been erroneously detected, whether or not the seedling replenishment operation should be performed or whether the seedling loading posture should be corrected is referred to the seedling loading member (51). Judgment can be made without going, improving work efficiency and reducing the labor of the worker.

  According to the sixth aspect of the invention, in addition to the effect of the first aspect of the invention, the planting operation member (79) provided on the operation lever (78) is operated for a predetermined time or more. By operating the planting device (52) without moving the traveling vehicle body (2) and planting the seedlings on the spot, the planting operation member (79) has the planting end position and planting start position of the planting operation member (79). Since it can be determined by the operation, it becomes easy to align the planting end position and the planting start position, and the seedling planting accuracy is improved.

Side view of seedling transplanter Top view of seedling transplanter Rear view of seedling planting part Side view of the main part of the seedling planting part Enlarged view of back monitor device Side view of back monitor device Block diagram of back monitor device Control flow chart of back monitor device Control flow chart of back monitor device at the end of turning The figure which shows the movement of the imaging device before and behind turning The figure which shows the movement of the imaging device before and after turning and at the start of planting (A) The principal part side view of the grip part of a traveling lever, (b) The principal part front view of the grip part of a traveling lever Main part plan view showing sub-shift lever and lever guide Flow chart of idling stop by sub-shift lever operation Main part plan view showing the sub-shift lever and clutch brake (A) The principal part side view which shows the reserve seedling frame of a lamination | stacking form, (b) The principal part side view which shows the preliminary seedling frame in the middle of a form change from a lamination | stacking form to an expansion | deployment form Control flow chart for stopping the pre-seedling frame in the middle of changing the form from the stacked form to the developed form Flow chart of control to raise the seedling planting part finely when moving on an inclined land Control flowchart for sending aircraft information when an abnormal condition is detected Control flow chart for transmitting aircraft information when the engine is started without key operation Control flow chart for sending machine information when energized without key operation Control flow chart for changing communication contents depending on presence / absence of running operation at energization detection Control flowchart to communicate seedling, fertilizer, fuel shortage

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
1 and 2 are a side view and a plan view of a six-row type rice transplanter, which is a configuration example of a riding seedling transplanter to which the present invention is applied. In this rice transplanter 1, a seedling planting part 4 is mounted on the rear side of the traveling vehicle body 2 via a lifting link device 3 so as to be movable up and down, and a main body portion of the fertilizer application device 5 is provided on the rear upper side of the traveling vehicle body 2. . Based on the rice transplanter boarding operator, the forward and backward directions are referred to as front and rear, respectively, and the left and right directions toward the forward direction are referred to as left and right, respectively.

  The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles projecting outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10 and 10 are respectively attached. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18.

  The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via the belt transmission device 21 and the HST 22. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2 and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26 and to the fertilizer application device 5 by the fertilization transmission mechanism. It is transmitted.

  The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly grid-shaped (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls on the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

  The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted by hydraulic pressure. The upper link 40 pivots up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

  The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings to the seedling outlet 51a of each row one by one. When all the seedlings are supplied to the seedling outlet 51a, ..., the seedling tank 51 that transports the seedling downward by the seedling feeding belt 51b, ..., the seedling supplied to the seedling outlet 51a, ... A planting device 52 provided with a planting basket 52a,..., A pair of left and right drawing markers 92 for drawing the aircraft path in the next stroke to the topsoil surface, and the like. In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof.

  When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the planting device 52,. Seedlings are planted. Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side moves up and down in accordance with the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. The planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4 according to the detection result. .

  The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... And applies the fertilizer to the left and right sides of the floats 55, 56, 56 with the fertilizer hoses 62,. Guides (not shown), guided to the fertilizer guide, ... Grooves (not shown) provided on the front side of the fertilizer guide, ... are dropped into the fertilization structure formed near the side of the seedling planting strip. ing. Air generated by the blower 58 driven by the blower electric motor 53 is blown into the fertilizer hose 62 through the air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hose 62 is forced by the wind pressure. It is designed to be transported.

  The seedling planting unit 4 is provided with a leveling rotor (an example of a leveling rotor may be simply referred to as a combination of the first leveling rotor 27a and the second leveling rotor 27b) as an example of a leveling device. In addition, the seedling tank 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame 65 having a full width in the left-right direction and the up-down direction that supports the entire seedling planting unit 4.

  A pair of preliminary seedling frames 38 and 38 including a plurality of stages of preliminary seedling mounting bases 38a, 38b, and 38c on which replenishment seedlings are placed are provided on the left and right sides of the front portion of the traveling vehicle body 2. Both of the preliminary seedling frames 38, 38 are pivotally supported about the vertical axis, and are provided so as to be rotatable between a working position that protrudes laterally from the machine body and a storage position that suppresses outward protrusion.

  In addition, the seedling planting unit 4 is provided with a seedling reduction switch 71 for detecting a shortage of the loaded seedling remaining amount in the vicinity of the rear end of the seedling tank 51 for each planting line, as shown in FIG. And a back monitor device 72 for reflecting a state extending from the rear end portion of the seedling tank 51 to the rear of the planting device 52 after planting the seedling on the display device 76. Provide.

  As shown in FIGS. 3 and 4, the back monitor device 72 is a rear view of the seedling planting unit 4 and a side view of the main part, respectively. An imaging device 73 such as a CCD camera that senses the supply state of the loaded seedlings on the rear end side and reflects it on the notification member, a movement support device 74 that controls the movement of the imaging device 73 in the body width direction, and sensing of the imaging device 73 A control system (see FIG. 7) is configured by including a rotation support mechanism 75 that controls the rotation of the direction angle, and the control corresponding to the situation (see FIG. 8) is performed by the control unit C.

  The imaging device 73 displays an image in a predetermined viewing angle range on the display device 76 provided at the upper rear side of the front cover 32 and below the handle 34, so that the operator can see the state and placement of the seedling after planting. Since the state of the placed seedling can be visually discriminated, the abnormality of the seedling can be corrected quickly, and the seedling planting accuracy is improved.

  As shown in FIGS. 5 and 6, the movable support device 74 is a column 81 attached to the transmission cases 50, 50 of the planting devices 52, 52 at both ends. , 81, a rotating chain mechanism 82 with a cover that supports the imaging device 73 between the two columns 81, 81 so as to be laterally movable in the required range A in the body width direction, and a sprocket at one end of the rotating chain mechanism 82 An electric actuator 82a that is connected and driven is used. The actuator 82a is disposed on the opposite side of the blower 58 of the fertilizer applicator 5 for the left-right balance of the machine body.

  As shown in FIGS. 3, 4, and 7, the moving support device 74 configured as described above is provided at the bottom of the seedling tank 51 by providing the planting devices 52 and 52 with the support columns 81 and 81 of the moving support device 74. Since the imaging device 73 can be brought close to the farm field, the detection accuracy of the seedling supply state is improved, and it is possible for the operator to accurately determine whether or not the working state is normal.

  In the movement control, a proximity sensor 83 that detects the position of the imaging device 73 that is moved by the circular chain mechanism 82 is disposed at predetermined first to third stop positions P1, P2, and P3. The first to third stop positions P1, P2, and P3 are based on distances and sensing ranges where the sensing accuracy of the imaging device 73 can be ensured, for example, with the two seedling tanks 51 and 51 as side units. Divide in units of 2 sections in order, and set each at the center position.

  The rotation support mechanism 75 is configured to pivotally support the imaging device 73 about the axis in the body width direction, and to be able to control the rotation angle with a potentiometer in a range from the rear end portion of the seedling tank 51 to the rear of the planting device 52. . The control position of the rotation angle sets a tank rear end direction D1, a planting device rear end direction D2, and a rear farm scene direction D3. That is, the tank rear end direction D1 is a direction in which the seedling supply state is sensed facing the rear end of the seedling tank 51, and the planting device rear end direction D2 is the most advanced position when the aircraft is retracted. The rear farm scene direction D3 is a direction for sensing the transplanting situation of the seedlings in the rear farm scene, and corresponds to the focal length of the imaging device 73, respectively. And set.

  In the planting operation, the position / direction switching control of the imaging device 73 by the movement support device 74 and the rotation support mechanism 75 is performed by setting the rear field scene direction D3 to the initial state at the machine body center position P2, thereby allowing the operator to display the display device 76. Planting work traveling can be continued while confirming the reflected planting situation.

  When the seedling reduction switch 71 generates a detection signal during planting work, the moving support device 74 holds the imaging device 73 at a predetermined holding time at the first to third stop positions P1, P2, and P3 corresponding to the detection signal. (For example, 3 seconds) is secured and the movement control is performed, and the rotation support mechanism 75 focuses the direction in the tank rear end direction D1 to reflect the seedling supply state of the seedling tank 51 on the display device 76. Is done.

  Thus, when the seedling reduction switch 71 detects a decrease in seedlings, the imaging device 73 is configured to face the seedling tank side only for a predetermined time from the direction of the planting seedling. Since the state after attachment and the placement state of the seedling can be confirmed, the number of parts is reduced.

  Moreover, since the imaging device 73 detects the state after planting of the seedling by rotating in the rear farm scene direction D3 after a predetermined time has elapsed, the operator's operation procedure can be prevented from becoming complicated, and the operability is improved. To do.

  Therefore, the operator can check the supply state of the loaded seedlings of the related seedling tanks in the seedling tanks of the multiple seedling planting unit 4 through a single state detection member and a notification member without requiring a backward confirmation operation. Since it can be confirmed individually, it is possible to concentrate on maneuvering the aircraft, improving work efficiency and improving seedling planting accuracy.

  In addition, other than normal seedling reduction (mat seedling rise, mat seed tearing, seedling amount reduction detection switch failure, etc.) can be confirmed at the cockpit by the notification member. It is not necessary to check the seedling tank 51 each time the 71 is detected, and the work efficiency is improved.

  In this case, the movement control unit and the direction control unit perform positioning and direction switching for a predetermined holding time corresponding to the first detection signal of another seedling reduction switch 71 during the end of the predetermined holding time. Thus, even when the seedling reduction switch 71 of another seedling tank 51 overlaps and issues a detection signal, the seedling state can be detected for a predetermined time in the order of detection, so that a plurality of seedling reduction switches 71 are continuously detected. It is possible to accurately grasp the state of each seedling when it is done.

  Further, as shown in FIGS. 3, 5, and 6, the movement control unit is configured so that the proximity sensor 83 for determining the movement position of the imaging device 73 can be switched from the non-operation state to the operation state, for example, with a solenoid. The target position setting member 83 is disposed at the first to third stop positions P1, P2, and P3 for sensing the state of each seedling tank 51, and the seedling tank corresponding to the detection signal of the seedling reduction switch 71 is used. By switching and controlling the operation state for 51, the necessary proximity sensor 83 is validated, and the moving position of the imaging device 73 is determined along this proximity sensor 83, so that the imaging device 73 is surely placed at the required position. Since it moves, it is prevented that a detection position is mistaken, the abnormality of the seedling loaded in the seedling tank can be corrected quickly, and the seedling planting accuracy is improved.

  In addition, the movement control unit and the direction control unit switch the moving position of the imaging device 73 to the center position P2 in the left-right direction and the sensing direction of the imaging device 73 to the rear side of the planting device 52, corresponding to the reverse travel of the aircraft. Accordingly, when the aircraft is operated backward, the sensing member 73 faces the rear side of the planting device 52 and moves to the center in the left-right direction of the transplanting unit. Therefore, the operator moves the aircraft backward while moving the vehicle forward. Since the surroundings of the planting device 52 can be seen, the planting device 52 positioned at the rear end of the machine body is prevented from being damaged due to contact with the wall or the field edge when the machine body is stored.

Next, a configuration for further improving the efficiency of planting work using the imaging device 73 will be described.
As shown in FIGS. 7, 9 and 10, a handle potentiometer 34a for detecting the operated angle of the handle 34 is provided, and when the handle potentiometer 34a detects a predetermined angle, the actuator 82a is operated to take an image. The device 73 is moved to the first stop position P1 or the third stop position P3, and the rotation support mechanism 75 is operated to take a picture in the planting device rear end direction D2.

  Specifically, when the traveling body 2 is turned to the left by approximately 180 degrees by steering the handle 34, if the angle detected by the handle potentiometer 34a is smaller than an angle that can be regarded as turning, the actuator 82a Moves the imaging device 73 to the left end side of the seedling tank 51, that is, the first stop position P1. At this time, when a potentiometer (not shown) for detecting the operation position of the rotation support mechanism 75 detects that the imaging device 73 is facing the tank rear end direction D1 or the rear farm scene direction D3, the rotation support is performed. The mechanism 75 is actuated to direct the imaging device 73 in the planting device rear end direction D2, and the imaging device 73 projects the seedling planting end position immediately before the turning and the seedling planting start position immediately after the turning. It is displayed on the display device 76.

  When turning about 180 degrees to the right, the actuator 82a moves the imaging device 73 to the right end side of the seedling tank 51, that is, the third stop position P3, and sets the imaging position of the imaging device 73 toward the rear end of the planting device. The display device 76 displays the planting end position of the seedling just before turning and the planting start position of the seedling just after turning.

  With the above configuration, at the end of turning at the field end or the like, the imaging device 73 automatically moves to the left end or right end of the seedling tank 51 according to the turning direction, and the planting end position before turning and after turning Since the planting start position can be adjusted to the planting end position by photographing the planting start position and displaying it on the display device 76, it is possible to prevent seedlings from protruding into the work position at the end of the field, the so-called headland. Is done. This prevents the seedling from being crushed or planted in the same position at the time of planting work at the headland, and the consumption of the seedling is suppressed.

  Moreover, since it can prevent that the space | interval of the planting start position of a seedling and a headland spreads too much, the operation | work which plantes a seedling manually in the location where the seedling was not planted becomes unnecessary, and an operator's labor is reduced. .

  In addition to the above, as shown in FIGS. 7, 9 and 11, left and right rear wheel rotation sensors 77, 77 for detecting the number of rotations of the left and right rear wheels 11, 11 are provided. When 73 moves to the first stop position P1 or the third stop position P3, the left and right rear wheel rotation sensors 77 and 77 start to measure the number of rotations of the left and right rear wheels 11 and 11, respectively. When the rotational speeds of the left and right rear wheel rotation sensors 77 and 77 reach the set value recorded in the control unit C, the actuator 82a is operated to connect the image pickup device 73 to the center of the seedling tank 51 in the horizontal direction. It is set as the structure which moves to the 2nd stop position P2 and image | photographs the planting apparatus rear-end part direction D2.

  With the above-described configuration, the traveling vehicle body 2 travels a predetermined distance after the turn is completed, that is, the planting clutch in the planting clutch case 25 is engaged, and a plurality of planting devices 52,... Start planting seedlings. When the left and right rear wheel rotation sensors 77 and 77 detect that the position has moved, the image pickup device 73 moves behind the seedling tank 51 and moves to a position for photographing the entire planting work line currently being worked. Since the operator can confirm the planting position of the seedling without performing the moving operation of the imaging device 73, the disturbance of the planting position of the seedling is suppressed by the steering of the traveling vehicle body 2, and the planting accuracy of the seedling is improved. improves.

  In addition, problems such as seedlings not being planted or seedlings being planted in a slanting posture can be noticed at an early stage, so that the range of planting seedlings by hand is prevented from expanding, The labor of the worker is reduced.

  The planting clutch in the planting clutch case 25 is connected when the seedling planting part 4 is lowered to a predetermined height, and transmits the driving force from the HST 22 to the seedling planting part 4 side. As shown in FIGS. 1 and 2, this driving force is transmitted when the traveling lever 78 provided on the side portion of the display device 76 is operated to the forward traveling side, and the transmission is stopped when the traveling lever 78 is operated neutrally. Is done. When the travel lever 78 is operated backward, the planting device 52,..., The center float 55, the left and right side floats 56, 56, the leveling rotor 27, and the like are prevented from being damaged by contact resistance with soil. Therefore, since the seedling planting part 4 is raised by the reverse raising mechanism (back lift mechanism) that contracts the cylinder 46 and raises the seedling planting part 4, the planting clutch is turned off and the driving force is not transmitted. It has become.

  As shown in FIG. 7, a lever potentiometer 78a that detects the output stage of the HST 22 from the operation angle of the travel lever 78 is provided at the base of the travel lever 78, and the detection angle of the lever potentiometer 78a is 0 degree. In some cases, the output of the HST 22 is stopped as neutral.

  In seedling planting work, as described above, if the planting end position before turning and the planting start position after turning are aligned, the headland can be planted smoothly and manually in the vacant part. This eliminates the need to plant seedlings. However, since the planting devices 52 are of a rotary type and are configured to plant seedlings in conjunction with planting travel, the planting start position and planting end position cannot be aligned depending on the turning travel distance. Sometimes.

  In order to solve the above problem, as shown in FIGS. 12A and 12B, a manual on / off operation button for the planting clutch, that is, a planting button 79, is provided on the grip portion 78 a of the traveling lever 78. When the planting button 79 is continuously pressed for a predetermined time (for example, 3 seconds) while the planting is being operated at the neutral position, the planting clutch is turned on until the planting button 79 is operated. 4, the driving force is transmitted from the HST 22, and the driving force is not transmitted to the left and right front wheels 10 and 10 and the left and right rear wheels 11 and 11.

  With the above configuration, when the planting button 79a is pressed for a predetermined time or more while the traveling lever 78 is in the neutral state, only the seedling planting unit 4 is driven, so that the traveling vehicle body 2 does not move forward, so that the seedling is placed on the spot. It is possible to plant, and it is prevented that the spacing between the planting start position, planting end position and the headland is widened, and it is not necessary to plant seedlings manually in this spacing section.

  In addition, since it is possible to plant seedlings on the spot only by operating the planting button 79, it is not necessary to provide a member for planting seedlings on the spot, the number of parts is reduced, The structure of the control system is simplified and the operability is improved.

  Next, the engine of the traveling vehicle body 2 prevents the consumption of extra fuel or exhaust gas without stopping the engine 20 during replenishment work of seedlings or fertilizers or during breaks. A technique related to 20 idling stops will be described.

  As shown in FIGS. 2, 13, and 14, on the upper rear side of the front cover 32, on the right side of the display device 76, there is an auxiliary transmission lever 80 that switches according to the traveling conditions of the traveling vehicle body 2, and the auxiliary transmission lever. A lever guide 80a through which 80 moves is provided. The lever guide 80a is a groove formed in the longitudinal direction of the machine body.

  When the auxiliary transmission lever 80 is operated to the front side of the machine body, when the traveling vehicle body 2 travels on the road, it transmits to the left and right front wheels 10 and 10 and the rear wheels 11 and 11 and does not transmit to the seedling planting portion 4. “On the road” work state. On the other hand, when the auxiliary return lever 80 is operated to the front side of the machine body, when the traveling vehicle body 2 is planted in the field, it is transmitted to the left and right front wheels 10 and 10 and the rear wheels 11 and 11 and also to the seedling planting section 4. It becomes a “planting” working state to transmit. In the “on the road” working state, the acceleration of the HST 22 is increased by operating the travel lever 78. In the “planting” traveling state, even if the output of the HST 22 is increased by the operation of the traveling lever 78, the speed is small. It is configured to accelerate only.

  In addition, when the auxiliary transmission lever 80 is operated between “on the road” and “planting”, the driving force is transmitted to the seedling planting portion 4, but the left and right front wheels 10, 10 and the rear wheels 11, 11, etc. The driving system is in a “traveling neutral” state in which no driving force is supplied.

  In addition to this, the lever guide 80a is extended from the “planting” to the right side of the machine body, and the end of the extension part to the right side is extended toward the front side of the machine body. An “idling stop” position is formed in the part. At this “idling stop” position, there is provided a stop switch 91 that stops the engine 20 via the control unit C when the auxiliary transmission lever 80 comes into contact.

  As a result, when the auxiliary transmission lever 80 is moved to the “idling stop” position, the engine 20 is stopped, so that it is possible to prevent excessive fuel consumption and exhaust gas discharge during replenishment work and breaks. Is done.

  In addition, when the sub-shift lever 80 is operated to the right side from the “planting” position and then not moved to the “idling stop” position unless operated to the front side, the operation of the sub-shift lever 80 is stopped when the engine 20 is stopped. Therefore, the engine 20 is stopped due to an erroneous operation, the work is interrupted, and the work efficiency is prevented from being lowered.

  If the engine 20 is stopped, the key must be turned every time when returning, and it takes time to return. Therefore, when the sub-shift lever 80 is in contact with the stop switch 91, the controller C Does not stop the rotation speed of the engine 20, but reduces it to a minimum rotation speed (eg, 800 to 1200 rpm) that does not automatically stop due to insufficient rotation speed. If the engine speed is changed to a rotation speed suitable for work and not accompanied by a sudden increase in output (eg, 1800 to 2500 rpm), the engine 20 can be stopped and restarted by operating the auxiliary transmission lever 80. And operability is improved. Further, fuel consumption and noise generation when the engine 20 is restarted are prevented.

  In addition to the above, as shown in FIG. 15, one end of the connecting wire 92 is provided to the auxiliary transmission lever 80, the connecting wire 92 is bifurcated in the middle, and the end of the two-hand branching portion is connected to the left and right rear wheels. The left and right clutch brake mechanisms 93, 93 may be provided respectively to block the rotation while weakening the rotation of the left and right drive shafts 11 a, 11 a transmitting the driving force to the motor 11, 11.

  With the above configuration, when the traveling vehicle body 2 is stopped by idling stop, the left and right clutch brake mechanisms 93 and 93 are actuated by the two-hand branching portion of the connecting wire 92, so that the driving force to the left and right rear wheels 11 and 11 is reduced. Since the transmission is weakened and cut off, the traveling vehicle body 2 is prevented from moving forward or backward under the influence of gravity even when the idling stop position is on an inclined ground.

  Thereby, since the position of the traveling vehicle body 2 is not shifted when the planting operation is resumed, there is no need to move the traveling vehicle body 2 before the planting is resumed, and the work efficiency is improved and the planting of the seedlings is improved. Spacing is ensured and seedling planting accuracy is improved.

  Further, since the traveling vehicle body 2 can be prevented from moving in the tilting direction and coming into contact with obstacles such as utility poles and walls, the seedling planting portion 4 provided on the traveling vehicle body 2 and the left and right spare seedling frames 38, 38, etc. Damage is prevented.

  Similarly, when the second-hand bifurcation portion of the connecting wire 92 operates the left and right clutch brake mechanisms 93, 93 even when moved to the “traveling neutral” position where the driving force of the traveling system is interrupted, When the maintenance work is performed in a state where the work is stopped on the slope, the traveling vehicle body 2 does not move in the downward direction of the slope, and the workability is improved.

Next, an invention relating to a spare seedling frame that can efficiently extract seedlings will be described.
As shown in FIG. 1, FIG. 2, FIG. 16 (a) (b) and FIG. The left and right spare seedling frames 38 and 38 are provided with a plurality of spare seedling platforms 38a, 38b, and 38c on rotatable link arms 39a, 39b, and 39c, and the plurality of preliminary seedling platforms 38a, 38b, It is possible to switch between a stacked form in which 38c overlaps in the vertical direction and a developed form in which the plurality of preliminary seedling platforms 38a, 38b, 38c are arranged in the front-rear direction.

  Thus, during the seedling planting operation, the spare seedling frames 38 and 38 are stacked so that the supplementary seedlings are projected within the width of the traveling vehicle body 2 without protruding forward or sideward of the traveling vehicle body 2. And it can arrange | position without narrowing an operator's movement space, and the efficiency of the replenishment work of a seedling improves. In addition, when the seedlings are loaded on the preliminary seedling frames 38, 38, the foremost preliminary seedling stand 38a protrudes to the front side of the machine body from the traveling vehicle body 2 and the preliminary seedling frames 38, 38 are arranged in the unfolded form. Therefore, the operator who replenishes the seedling at the end of the field can easily load the seedling, thereby improving the work efficiency and reducing the labor of the worker.

  In particular, when there is a water channel between the field and the outside of the field, it is not necessary for the replenisher to carry over the water channel, and the work efficiency is further improved, and work is performed while getting into the water channel and getting the feet wet. Is prevented.

  Since the left and right spare seedling frames 38 and 38 are stacked and deployed by rotating the link arms 39a, 39b and 39c with the left and right switching motors 94 and 94, the operator can switch the link arms. It is not necessary to carry out the rotation operation by holding 39a, 39b, 39c, and work efficiency can be improved and labor can be reduced.

  However, in the preliminary seedling frames 38 and 38 having the above-described configuration, the spare seedling mounting bases 38a, 38b, and 38c are overlapped when they are stacked, so that the information other than the uppermost standby name mounting base 38a is opened. The positions for inserting a seedling collecting plate (not shown) for taking out the hands of the workers and seedlings are limited on the preliminary seedling placing stands 38b and 38c, and there is a problem that the efficiency of the seedling replenishment work is lowered.

  In order to solve the above problem, when the lever potentiometer 78a detects that the traveling lever 78 has been operated in a neutral position, when the seedling planting unit 4 is lowered to a height at which the planting clutch is engaged, the control unit C The left and right switching motors 94, 94 are operated for a predetermined time (e.g., 3 to 5 seconds), and the left and right spare seedling frames 38, 38 are deformed to a form in the middle of switching from the stacked form to the deployed form.

  Specifically, as shown in FIGS. 16 (a) and 16 (b), the switching motor 94 rotates the link arms 39a, 39b, 39c in the counterclockwise direction when viewed from the side, and the rear part of the upper preliminary seedling platform is placed. And the front part of the lower preliminary seedling stage overlap in a plan view, and the upper preliminary seedling stage is stopped in a state of being located on the front side of the machine body.

As a result, the upper stage seedling platform does not block the rear upper part of the lower stage seedling platform, so that there is nothing to hinder the hands and seedling boards of workers who take seedlings, and the efficiency of replenishing seedlings is improved. improves.
Next, an invention for changing the working height of the seedling planting unit 4 to an appropriate position when the traveling vehicle body 2 travels on an inclined ground will be described.

  As shown in FIGS. 7 and 18, the traveling vehicle body 2 is provided with an inclination sensor 95 for detecting the inclination in the front-rear direction, and the detected angle of the inclination sensor 95 is a predetermined angle in the forward upward direction of the traveling vehicle body 2 (example: 1). Every time it changes, the hydraulic valve is switched to contract the cylinder 46 to raise the seedling planting part 4 by a predetermined amount (for example, 2 to 5 cm). In addition, the raising of the seedling planting unit 4 by the tilt detection of the tilt sensor 95 has priority over the raising and lowering of the seedling planting unit 4 by the detection of the elevation angle control sensor that detects the vertical movement of the front part of the center float 55.

  With the above configuration, when the traveling vehicle body 2 exits from the field, that is, when seedlings are planted while being tilted forward and inclining the entrance of the field, the seedling planting unit 4 is detected by the detection of the center float 55. Even if the center float 55 moves away from the field scene and the unevenness of the field cannot be detected, if the inclination angle detected by the inclination sensor 95 increases, the seedling planting unit 4 rises a predetermined distance. It is prevented that the seedling planting part 4 is too close, and planting of the seedling by the planting device 52,... Is prevented from becoming too deep, and the growth of the seedling is stabilized.

Next, an invention for notifying the occurrence of a problem early using communication will be described.
As shown in FIGS. 7 and 19, a communication device 97 is provided on the traveling vehicle body 2. It is assumed that the communication device 97 communicates with the receiving device 101 of the base station when a predetermined condition is satisfied, and transmits information on the mounted aircraft. Aircraft information includes a serial number recorded in the control unit C, current GPS coordinates, a registered pilot name, contact information, and the like.

  In addition to the inclination sensor 95, the traveling vehicle body 2 is provided with an acceleration sensor 96 that detects an impact applied to the traveling vehicle body 2, and the inclination sensor 95 detects an angle that is not detected during normal traveling or planting work (example: 45). When the acceleration sensor 96 detects an acceleration exceeding the set value, the communication device 97 transmits information to the receiving device 101 of the base station.

  When the tilt sensor 95 detects an abnormal angle, or when the acceleration sensor detects a sudden acceleration, it often occurs when a problem such as a fall of the aircraft, a wheel-out, or a sink in an extremely soft field occurs. When the communication device 97 communicates the airframe information to the receiving device 101 of the base station at the same time as detecting an abnormal numerical value, the occurrence of the problem can be known at an early stage, and the problem and the injury of the worker can be dealt with. As a result, work safety can be improved and the time required for work return can be shortened.

  In addition, when information is transmitted from the communication device 97, if the base station is set to contact the registered terminal 102 such as a telephone or e-mail, an immediate response is possible even if the base station is unattended. It becomes possible. Alternatively, the communication device 97 may directly communicate with the registration terminal 102 without communicating with the receiving device 101 of the base station.

  The communication device 87 determines the angle detected by the tilt sensor 95 and the acceleration detected by the acceleration sensor 96 from a device capable of short-range wireless communication such as a tablet terminal or a smart phone. If an application is installed and an automatic numerical value is transmitted, a call is made automatically or an e-mail is created, so that it is not necessary to install a separate control device or communication device, and the cost can be greatly reduced.

  The communication device 97 shown in FIGS. 7, 20, 21, and 22 detects that the energization sensor 100 detects that the traveling vehicle body 2 has been energized without the key operation or the engine 20 has started. It is good also as a structure which communicates with the receiver 101 of a station, and contacts the owner of an airframe.

  However, since there is a possibility that energization due to the occurrence of an abnormality in the electrical system is detected, the rear wheel rotation sensors 77, 77 detect the rotation of the rear wheels 11, 11, or the lever potentiometer 78a is not neutral. The communication device 87 transmits different information depending on whether the traveling vehicle body 2 can be regarded as traveling, for example, when it is detected that the vehicle has been operated, or when the traveling vehicle body 2 cannot be regarded as traveling. It is good also as a structure.

With the above-described configuration, when the electrical system or the engine 20 is operated by unjust means, the owner can immediately detect an abnormality, and theft of the aircraft can be prevented.
In addition, as soon as the owner grasps the power supply due to an abnormality in the electrical system, it can be prevented that the aircraft does not move due to malfunction of the electrical system before work, and the work cannot be performed at an appropriate time. By performing the work, the growth of the crop is stabilized and a planned work can be performed.

  7 and 23, the seedling reduction detection member 71 of the seedling planting unit 4, the fertilizer reduction detection sensor 98 of the fertilizer application device 5, and the fuel detection sensor 99 that detects the remaining amount of fuel are seedlings and fertilizers. When detecting the decrease in fuel, the communication device 97 transmits to the base station what is reduced among the seedling, fertilizer, and fuel. This makes it possible to accurately transport the missing work material to the field where the corresponding machine is working, and prevents work from being interrupted until the work material arrives, thus improving work efficiency. .

2 Traveling body 11 Rear wheel (traveling wheel)
34 Handle (steering member)
51 Seedling tank (seedling loading member)
52 Planting device 71 Seedling reduction switch (Seedling reduction detection member)
73 Imaging device (seedling photographing member)
74 Movement support mechanism 76 Display device 77 Rear wheel rotation sensor (movement detection member)
78 Travel lever (control lever)
79 Planting button (planting operation member)
81 Strut 82 Circular transmission chain (circular transmission mechanism)
82a Actuator (drive actuator)
D1 placement member direction D3 planting side direction P1 first stop position (right and left one side position)
P2 Second stop position (intermediate position)
P3 3rd stop position (left and right other side position)

Claims (6)

A seedling loading member (51) for loading seedlings is provided at the rear part of the traveling vehicle body (2), and a planting device (52) for taking seedlings from the seedling loading members (51) and planting them in a field is provided. 51) A moving support mechanism for providing a seedling photographing member (73) for photographing a seedling loaded on 51) and a seedling to be planted at the rear of the machine body and moving the seedling photographing member (73) in the left-right direction of the seedling loading member (51) In the seedling transplanting machine provided with (74),
When the operation member (34) that steers the traveling vehicle body (2) is operated to turn, the seedling photographing member (73) is moved in the left-right direction by the movement support mechanism (74), and the side end of the seedling loading member (51) A seedling transplanting machine that photographs the planting position of the seedling in the section and displays the seedling photographed by the seedling photographing member (73) on the display device (76).   The seedling photographing member (73) is configured to be movable to the left and right one side position (P1) and the left and right other side position (P3) of the seedling stacking member (51) by the movement support mechanism (74), and seedling loading From the planting side direction (D3) for photographing the seedling planted behind the member (51) to the placement member direction (D1) for photographing the seedling loaded on the seedling loading member (51), the photographing direction is changed. The seedling transplanter according to claim 1, wherein the seedling transplanter is configured to be switchable.   The moving support mechanism (74) includes a left and right support (81, 81) provided in the planting device (52, 52) on both left and right ends, and a seedling photographing member (73) between the left and right support (81, 81). 2. A rotating transmission mechanism (82) that movably supports the driving mechanism (82), and a drive actuator (82a) that is connected and driven at one of left and right ends of the rotating transmission mechanism (82). Or the seedling transplanter of Claim 2. A traveling wheel (11) is provided on the traveling vehicle body (2), a movement detection member (77) for detecting a movement distance of the traveling wheel (11) is provided, and a distance detection signal of the movement detection member (77) is received. A control unit (C) is provided,
The movement support mechanism (74) is configured so that the seedling photographing member (73) can be stopped by moving to a middle position (P2) between the left and right one side position (P1) and the left and right other side position (P3),
When the distance detecting member (77) detects the set distance recorded in the control unit (C) after the traveling vehicle body (2) is turning, the seedling photographing member (73) is moved to the left / right one side position (P1) or left / right. The moving direction from the other side position (P3) to the center position (P2) and the shooting direction of the seedling shooting member (73) is switched to the planting side direction (D3). The seedling transplanter according to any one of the above.   The seedling loading member (51) is provided with a seedling reduction detection member (71) for detecting that the number of loaded seedlings is less than a predetermined amount, and when the seedling reduction detection member (71) is in a detection state, The seedling according to any one of claims 1 to 4, wherein the photographing direction of the photographing member (73) is switched to a placement member direction (D1) for photographing the seedling loading surface of the seedling loading member (51). Transplanter.   An operation lever (78) for moving the traveling vehicle body (2) forward and backward and raising and lowering the seedling loading member (51) is provided, and a planting operation member for turning the planting device (52) on and off the operation lever (78). (79), and when the planting operation member (79) is continuously operated for a predetermined time, the planting device (52) is operated without moving the traveling vehicle body (2) forward and backward, and the seedlings are grown. The seedling transplanter according to any one of claims 1 to 5, wherein the seedling transplanter is planted.

Images