JP6665080B2 - Multi rice transplanter - Google Patents

Description

  The present invention relates to a multi-rice transplanter capable of feeding a roll-shaped sheet as it travels in a field to cover a field scene and transplanting seedlings from above the sheet to the field.

  Generally, when planting seedlings in a rectangular field by a riding rice transplanter, the operator repeats turning at the edge of the field and reciprocates while removing a headland set to a predetermined width from a ridge. The planting work is performed within the range specified above, and finally the work is completed by circling the headlands. 2. Description of the Related Art Conventionally, a multi-transplanter that transplants seedlings onto a field from a fed sheet is known (see Patent Document 1). When the multi-transplanter reaches the edge of the field during planting work by reciprocation, first, the roll-shaped sheet mounted on the multi-transplanter and the sheet fed from the roll-shaped sheet are cut by the cutter. It is configured to raise the planting machine later to perform the turning operation.

Japanese Patent No. 3822124

  However, when the multi-transplanter reaches the edge of the field, the operator described in Patent Document 1 erroneously raises the planting work machine before cutting the fed sheet, thereby causing the planted seedling to fall. Therefore, there is a possibility that a gap between the fed sheet and the field scene may occur, and the fed sheet may be damaged.

  Therefore, the present invention provides a multi-planting machine capable of preventing an operator from erroneously raising the planting machine before cutting out the fed-out sheet when the multi-transplanting machine reaches a field edge. The purpose is to do so.

The present invention relates to a traveling machine body (4) supported by wheels (3), a planting work machine (6) supported by the traveling machine body (4) to be able to move up and down, and a roll-shaped sheet for covering a field scene. A sheet storage part (10) capable of storing (S), wherein the planting work machine (6) transplants seedlings to a field from above the continuously fed sheet (S). In (1, 101),
A work implement operating tool (21) for raising or lowering the planting work machine (6) by a raising or lowering operation;
A traveling distance measuring means (39) for measuring a traveling distance based on a rotation amount of the wheel (3);
Cutting means (15) capable of separating the rolled sheet (S) and the fed sheet (S);
Cutting detection means (46f) for detecting the separation of the sheet (S) by the cutting means (15);
When the traveling body (4) travels a predetermined distance or more while feeding the sheet to the field, the lifting operation by the work implement operating tool (21) is restricted, and the cutting means (46f) controls the cutting means (15). A control unit (40) that releases the restriction when the sheet (S) is separated by the control unit.
It is characterized by the following.

  For example, referring to FIGS. 1, 4, 5, and 10, the control section (40) stores the sheet (S) having a predetermined length or more in the sheet storage section (10), and When the work machine (6) is in contact with the ground and the traveling body (4) is traveling, it is determined that the traveling is being performed while the sheet (S) is being fed to the field.

  For example, referring to FIG. 8, FIG. 11 and FIG. 12, there is provided a notifying means (70, 71) which is activated when there is a lifting operation of the work implement operating tool (21) in the restricted state. .

  For example, with reference to FIGS. 8 and 11, the control unit (40) ignores the raising operation of the work implement operating tool (21) in the restricted state.

  For example, with reference to FIG. 8 and FIG. 12, when there is a lifting operation of the work implement operating tool (21) in the restricted state, the control unit (40) suspends the lifting operation during the restriction. When the cutting of the sheet (S) by the cutting means (15) is detected, the pause is released and the planting work machine (6) is raised.

  Note that the reference numerals in parentheses above are for comparison with the drawings, but do not limit the configuration of the present invention.

  According to the first aspect of the present invention, the multi-planting machine is configured to restrict the ascent operation of the planting work machine when the sheet travels a predetermined distance or more while feeding the sheet to the field, and release the regulation by separating the sheet. As a result, it is possible to prevent the operator from inadvertently raising the planting work machine before the sheet is divided, and a separate operation is not required to release the regulation, thereby reducing the work load on the operator. be able to.

  According to the second aspect of the present invention, the control unit travels while feeding the sheet to the field when all of the storage of the sheet having a predetermined length or more, the contact of the planting work machine, and the traveling of the traveling machine body are satisfied. Therefore, it is possible to accurately detect that the sheet is traveling while feeding the sheet to the field, and when there is no inconvenience even if the raising operation of the planting machine is performed, the raising operation of the planting machine is regulated. Can be prevented.

  According to the third aspect of the present invention, the control unit activates the notifying means when the work implement operating tool is raised in a state where the ascent operation of the planting work machine is restricted. The operator can be notified that the operation of the tool is restricted, and can be prompted to cut the sheet.

  According to the fourth aspect of the present invention, the control unit ignores the raising operation of the work implement operating tool in a state where the raising operation of the planting work machine is restricted, so that the work implement operating tool is again divided after the sheet is divided. , The planting machine can be easily lifted, and the operation burden on the operator can be reduced.

  According to the fifth aspect of the present invention, the control unit temporarily suspends the ascending operation during the regulation when the ascent operation of the work implement operating tool is performed in a state where the ascent operation of the planting work machine is regulated. When the sheet is detected to be cut, the planting machine is moved upward, so that even if the operator erroneously raises the work machine operation tool before the sheet is cut, the number of operator operations does not increase and the operator's operation burden is reduced. Can be reduced.

The side view which shows the multi rice transplanter which concerns on 1st Embodiment. The side view which shows the hydraulic control mechanism which raises and lowers a planting working machine. FIG. 4 is a cross-sectional view showing a traveling distance measurement mechanism. FIG. 4 is a side view showing a paper-out detecting mechanism. FIGS. 7A and 7B are operation diagrams illustrating a sheet storage unit, wherein FIG. 7A is a side view of a paper holder in an open state, and FIG. The perspective view of a multi rice transplanter. FIG. 4 is an operation diagram showing a sheet cutting mechanism. FIG. 4 is a perspective view of a state in which the front of the driving unit is viewed from an operator. FIG. 3 is a block diagram of a control unit. FIG. 4 is a flowchart of multi disconnection request control. FIG. 4 is a flowchart of work machine operation control. FIG. 10 is a flowchart of work implement operation control according to the second embodiment.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a riding type multi-planter 1 according to the present embodiment has a traveling body 4 supported by a pair of left and right front wheels 2 and a rear wheel 3 as a pair of left and right wheels. At the rear of the body 4, a planting machine 6 is supported via a lifting link mechanism 5 so as to be able to move up and down. The lifting link mechanism 5 has a lift cylinder 7 interposed between the traveling machine body 4 and the planting work machine 6, and the planting work machine 6 is moved up and down according to the expansion and contraction operation of the lift cylinder 7.

  The planting work machine 6 includes a work machine frame 8 supported by the elevating link mechanism 5, a seedling mounting table 9 on which mat seedlings are mounted, and a sheet for horizontally storing a roll-shaped sheet S wound around a core. The storage unit 10 includes a storage unit 10, a planting mechanism 11 for transplanting seedlings to a field, a cylindrical roller float 12 for sliding in a field scene, a paper holding roll 13, and a cutting unit 47 of a sheet cutting mechanism 15 as cutting means. The planting mechanism 11 transplants seedlings scraped from mat seedlings from the sheet S shown in FIG. 5 which is continuously fed out as the traveling body 4 travels and covers the field scene shown in FIG. . The sheet S fed to the field is appropriately separated from the roll-shaped sheet S stored in the sheet storage unit 10 by the sheet cutting mechanism 15. The roller float 12 is formed in a cylindrical shape extending left and right, and is provided in parallel in the front-rear direction. The paper press roll 13 is formed in a cylindrical shape extending left and right and is arranged behind the roller float 12. The roller float 12 and the paper press roll 13 slide on the field scene while pressing the fed sheet S against the field scene, and the paper press roll 13 is configured to have a smaller ground contact area than the roller float 12.

  At the center of the traveling machine body 4, there is arranged an operating section 17 on which the operator operates to operate the traveling machine body 4 and the planting work machine 6. The driving section 17 is provided with a driver seat 19, a steering handle 20, and the like. In the present embodiment, the front direction in which the operator seated on the driver's seat 19 of the multi rice transplanter 1 placed on the horizontal plane is defined as the front, and the front, rear, left, and right directions are defined based on this. An engine and a transmission (not shown) are mounted on a front portion of the traveling body 4. The power output by the engine is shifted by the transmission, transmitted to the front wheels 2 and the rear wheels 3, and transmitted to the planting machine 6 via the hydraulic control mechanism 25 shown in FIG. An unillustrated planting clutch is provided inside the transmission, and power transmission to the planting work machine 6 is disconnected and connected with connection and disconnection of the planting clutch.

  Next, the hydraulic control mechanism 25 will be described with reference to FIG. The hydraulic control mechanism 25 includes a work machine operation cam motor 30 driven by operation of a work machine operation lever 21 as a work machine operation tool shown in FIG. 8, and a work machine operation cam that rotates based on the drive of the work machine operation cam motor 30. 31, a clutch arm 35 that swings to connect and disconnect the planting clutch, a hydraulic control valve 29 that opens and closes as the work machine operation cam 31 rotates, and is fixed coaxially with the rotation axis of the work machine operation cam 31. And a work machine operation cam potentiometer 32 for detecting a rotation position of the work machine operation cam 31.

  The work machine operation cam 31 is rotatably supported on a shaft extending in the left and right direction, having respective rotation positions of a rising position, a fixed position, a lowering position, and a planting position. Detected by the work implement operation cam potentiometer 32, the detection result is transmitted to the control unit 40 as an electric signal. When the hydraulic control valve 29 is opened and closed according to each rotation position of the work machine operation cam 31, the hydraulic pressure of a hydraulic pump (not shown) provided in the transmission is opened or shut off, and the lift cylinder 7 expands and contracts, and the planting operation is performed. The machine 6 moves up and down.

  When the work machine operation cam 31 is located at the raised position, the planting work machine 6 is in an ascending state in which the planting work machine 6 moves up to the upper limit height, and when the work machine operation cam 31 is located at the fixed position, the planting work machine 6 is planted. The work machine 6 is brought into a fixed state in which the elevating operation stops and an arbitrary height is maintained. When the work machine operation cam 31 is located at the lowered position, the roller float 12 of the planting work machine 6 is grounded. It is in a descending state in which it descends to the bottom. When the roller float 12 is in contact with the ground, the planting machine 6 automatically opens and closes the hydraulic control valve 29 based on changes in the attitude and height of the roller float 12 following the field scene. It is automatically raised and lowered, and becomes an automatic raising and lowering state where the planting depth is kept constant. In addition, the lifting height of the planting work machine 6 is detected by the lift angle potentiometer 27 shown in FIG. 9 based on the angle of the lifting link mechanism 5, and the detection result is transmitted to the control unit 40 as an electric signal.

  The clutch arm 35 is pivotally supported so as to be pivotable about a rotation pin 33 extending left and right. The upper end of the clutch arm 35 follows the outer periphery of the work machine operation cam 31 and rotates with the work machine operation cam 31. Accordingly, the clutch arm 35 swings back and forth. When the work machine operation cam 31 is located at a position other than the planting position, the planting clutch is disconnected and the planting mechanism 11 does not operate, and when the work machine operating cam 31 is located at the planting position, the planting clutch is connected. The planting work machine 6 is in a planting state. When the planting work machine 6 is in the planting state, the planting mechanism 11 operates with the traveling of the traveling machine body 4, and the seedlings are transplanted to the field.

  As shown in FIG. 3, the power generated by the engine is transmitted to the left and right rear wheels 3 via a rear axle case 37 via an input shaft 36 extending in the front-rear direction. Inside the rear axle case 37, a detection gear 41 that rotates integrally with the input shaft 36, and a travel brake 43 that brakes the rotation of the input shaft 36 are provided. The detection gear 41 and a travel distance sensor 42 for detecting the amount of rotation of the detection gear 41 constitute a travel distance measuring mechanism 39 as travel distance measuring means, and the detection result by the travel distance sensor 42 is sent to the control unit 40 as an electric signal to the control unit 40. Sent. The control unit 40 calculates the traveling distance of the traveling machine body 4 based on the detection result of the traveling distance sensor 42.

  As shown in FIG. 4, the sheet storage unit 10 includes a paper roll case 45 that can open and close the left and right ends and horizontally stores a roll-shaped sheet S, a detection mechanism support piece 50 fixed to the work machine frame 8, The sheet storage unit 10 includes a sheet-break detecting mechanism 63 that detects whether or not the sheet S having a length equal to or more than a predetermined length is stored and the sheet S is fed from the sheet storage unit 10. The paper-out detecting mechanism 63 is formed in a plate shape, and as shown in FIG. 5, a roll detecting piece 64 that swings in contact with the sheet S being fed from the paper roll case 45, and a swing of the roll detecting piece 64. And a roll detection switch 65 for detecting the The paper breakage detection mechanism 63 is fixed to the detection mechanism support piece 50 by an adjustment bolt 55. By tightening and loosening the adjustment bolt 55, a paper roll case is formed along an elongated hole (not shown) provided in the detection mechanism support piece 50. The front / rear position of the paper-out detecting mechanism 63 with respect to the position 45 can be changed.

  The roll detection piece 64 is supported so as to be swingable about a swing shaft 51 disposed behind the center axis of the roll-shaped sheet S stored in the paper roll case 45, and the lower end of the roll detection piece 64 is It is urged by a detection spring 52 toward the front which is the direction approaching the seat S. When the sheet S stored in the paper roll case 45 is fed from the paper roll case 45 and comes into contact with the roll detection piece 64, the lower end of the roll detection piece 64 tilts backward against the urging force of the detection spring 52. The roll detection switch 65 has a switch lever 53 that is formed in a plate shape and comes into contact with the roll detection piece 64. When the posture of the switch lever 53 changes with the tilt of the roll detection piece 64, the roll detection switch 65 Is switched between the ON state and the OFF state. The roll detection switch 65 is turned off when the sheet S having a predetermined length or more is being fed from the sheet storage unit 10, and is turned on when the sheet S having a length equal to or more than the predetermined length is not being fed. State. Information on whether the roll detection switch 65 is on or off is transmitted to the control unit 40 as an electric signal.

  When the relative position between the central axis of the roll-shaped sheet S stored in the paper roll case 45 and the lower end of the roll detection piece 64 is not appropriate, the state in which the sheet S having a predetermined length or more is fed from the paper roll case 45. However, the roll detection switch 65 may be turned on in spite of the above, or the sheet S may not be properly fed out with the travel of the traveling machine body 4 due to the resistance of the roll detection piece 64. In this case, the position of the roll detection switch 65 is adjusted so that the dimension A, which is the gap between the lower end of the roll detection piece 64 and the adjustment guide 56, by tightening and loosening the adjustment bolt 55 becomes an appropriate size. Can solve the problem.

  As shown in FIGS. 5A and 5B, the sheet storage unit 10 includes a paper holder 57 pivotally supported around a base end near the paper roll case 45, and a sheet holder 57. A paper holder operation lever 59 pivotally supported to open and close the paper holder 57, and a paper feeding knob 61 rotatably supported at both left and right ends of the sheet storage unit 10. The paper holder 57 receives and holds the sheet S fed from the paper roll case 45 from below when the paper holder 57 is not grounded. When the operator manually rotates the paper feed knob 61, the sheet storage unit 10 rotates the rolled sheet S stored in the paper roll case 45, and the sheet S is manually moved out of the sheet storage unit 10. And can be extended.

  The paper holder 57 extends substantially rearward from the base end as shown in FIG. 5B, and is closed from the base end as shown in FIG. And an open state in which the sheet S stored in the paper roll case 45 extending downward and rearward is easily fed out manually. In the closed state, when the front end of the paper holder operation lever 59 is operated clockwise in a left side view, the rear end of the paper holder 57 is lowered to be in an open state. When the front end of the paper holder operation lever 59 is operated counterclockwise as viewed from the left side, the rear end of the paper holder 57 is raised to a closed state for performing the planting operation. When the planting work machine 6 lands in the closed state and is in the automatic elevating state, the sheet S is brought into close contact with the field scene by the paper holding roll 13 and frictional resistance is generated between the sheet S and the field scene, The sheet S is fed out as the traveling body 4 travels forward.

  As shown in FIG. 6, auxiliary roll bases capable of supporting a roll-shaped spare sheet T to be used when the sheet S stored in the paper roll case 45 is used up, on both left and right sides of the traveling body 4. 62 are arranged. The auxiliary roll base 62 is capable of supporting the auxiliary sheet T such that the central axis of the auxiliary sheet T is substantially in the front-rear direction, and is provided near the rear end of the auxiliary sheet T supported by the auxiliary roll base 62. It is configured to be rotatable about a vertical axis. When the auxiliary roll table 62 is rotated in the case where the planting work machine 6 is at the upper end position, when the auxiliary roll table 62 is rotated, the end on the rotation axis side of the spare sheet T supported by the auxiliary roll table 62 and the end of the paper roll case 45 When the end of the paper roll case 45 is opened and the spare sheet T is pushed into the paper roll case 45 in this state, the spare sheet T can be stored in the paper roll case 45. .

  FIG. 7 is a left side view showing the sheet cutting mechanism 15. The sheet cutting mechanism 15 includes a cutting operation unit 46 provided on the traveling machine body 4 for an operator to perform a cutting operation, a cutting unit 47 provided on the planting work machine 6 for cutting the sheet S by a cutting operation by the operator, and a cutting operation. And an operation wire 49 for connecting the operation section 46 and the cutting section 47. The cutting operation unit 46 is provided behind the driver's seat 19, has a grip 46b that is gripped by the operator at the end, and is pivotally supported around a lever shaft 46c extending left and right by the operation of the operator. The cutter lever 46a, the lever fixing hook 46d pivotally supported by the cutter lever 46a about an axis parallel to the lever shaft 46c, and the lever fixing hook 46d are engaged to restrict the swing of the cutter lever 46a. A hook receiver 46e, a cutter operation detection switch 46f as cutting detection means for detecting the swing of the cutter lever 46a, and a center provided between the grip 46b and the lever shaft 46c and parallel to the lever shaft 46c. And a start end support portion 46g that rotatably supports the start end of the operation wire 49. The cutting portion 47 has a sheet cutter 47c at the rear end, and is provided with a cutter arm 47b that swings up and down around a cutter shaft 47d extending left and right, and a cutter arm 47b provided in front of the cutter arm 47b with respect to the cutter shaft 47d. An end support portion 47a rotatably supports the end of the operation wire 49 about an axis parallel to 47d, and a cutter spring 47e for urging the sheet cutter 47c upward by elastic force.

  The cutter lever 46a is pivotally supported between a non-operating position that stands substantially vertically and an operating position that is tilted forward from the non-operating position until it becomes substantially horizontal. In other words, when the lever fixing hook 46d is engaged with the hook receiver 46e, the tilting of the cutter lever 46a in the direction B which is the counterclockwise direction in FIG. 7 is restricted. When the operator releases the engagement between the lever fixing hook 46d and the hook receiver 46e and tilts the cutter lever 46a in the direction B to the operating position, the operation wire 49 is pulled by the cutter lever 46a, and the operation wire 49 is By pulling the arm 47b, the rear end of the cutter arm 47b is tilted in the clockwise direction C in FIG. 7, and the front end of the sheet cutter 47c is lowered to the bottom of the field scene. The rolled sheet S and the sheet S fed to the field are separated.

  A cutter operation detection switch 46f having a contact switch is provided so as to be switchable between an on state and an off state. When the cutter lever 46a is tilted to a position where the sheet S is divided, the cutter operation detection switch 46f is turned on. . When the operator stops operating the cutter lever 46a, the cutter spring 47e tilts the cutter arm 47b in a direction to lift the sheet cutter 47c upward, and the operation wire 49 is pulled by the tilt of the cutter arm 47b, and the operation wire 49 is pulled. When the cutter lever 46a is pulled, the cutter lever 46a returns from the operating position to the non-operating position, and the cutter operation detection switch 46f is turned off. Information indicating whether the cutter operation detection switch 46f is on or off is transmitted to the control unit 40 as an electric signal.

  As shown in FIG. 8, a starter switch 72, a work implement operation lever 21, a work implement preparation switch 26, and a display panel 22 are arranged in front of the operation unit 17. The starter switch 72 is a main switch of the multi-transplanter 1 provided to be switchable between an on state and an off state by an operator. When the starter switch 72 is turned on, the control unit 40 controls the multi-transplanter 1. (Not shown) is started, and input and output with each device are enabled. Information on whether the starter switch 72 is on or off is transmitted to the control unit 40 as an electric signal.

  The work implement operating lever 21 is pivotally supported in a vertical direction between an ascending position and a descending position, and is intermediate between the ascending position and the descending position by a lever spring (not shown) provided on the working implement operating lever 21. Are biased to the neutral position. When the operator performs an upward operation of lifting the work implement operation lever 21 upward, the work implement operation lever 21 is switched to the up position, and when the operator performs a downward operation of pushing the work implement operation lever 21 downward, the work implement operation lever 21 is lowered. When the operator stops operating the work implement operation lever 21, the work implement operation lever 21 is returned to the neutral position by the lever spring.

  The swing operation of the work machine operation lever 21 is linked with the work machine operation switch upper 66 and the work machine operation switch lower 67 shown in FIG. The upper work machine operation switch 66 and the lower work machine operation switch 67 are provided so as to be switchable between an on state and an off state, respectively. When the work machine operation lever 21 is at the raised position, the upper work machine operation switch 66 is turned on. When the work machine operation switch 67 is in the ON state and the work machine operation switch lower 67 is in the OFF state, and the work machine operation lever 21 is at the lower position, the work machine operation switch 66 is in the OFF state and the work machine operation switch 67 is in the ON state. When the operation lever 21 is located at the neutral position, both the upper work machine operation switch 66 and the lower work machine operation switch 67 are turned off. Information indicating whether the upper work machine operation switch 66 and the lower work machine operation switch 67 are on or off is transmitted to the control unit 40 as an electric signal.

  The work machine preparation switch 26 is provided so as to be switchable between an on state and an off state by an operator, and is configured so that the planting work machine 6 does not operate when in the off state. Information as to whether the work machine preparation switch 26 is in the ON state or the OFF state is transmitted to the control unit 40 as an electric signal. The display panel 22 has a warning lamp 70 as a notifying means, together with a fuel display lamp (not shown) for displaying the remaining amount of fuel. The alarm lamp 70 operates in response to a signal output from the control unit 40 together with an alarm buzzer 71 provided as a notifying means shown in FIG.

  FIG. 9 is a control block diagram according to the present embodiment, and the traveling machine body 4 includes a control unit 40 that executes a main routine based on each input. The control unit 40 includes a microcomputer including a CPU 40a, a ROM 40b, a RAM 40c, an I / F 40d, and the like. On the input side of the control unit 40, a work machine preparation switch 26, a work machine operation switch upper 66, a work machine operation switch lower 67, a work machine operation cam potentiometer 32, a lift angle potentiometer 27, a travel distance sensor 42, a roll detection switch 65 And a cutter operation detection switch 46f and the like are connected. The work unit operation cam motor 30, the alarm lamp 70, the alarm buzzer 71, and the like are connected to the output side of the control unit 40. The control unit 40 includes a work machine preparation switch 26, a work machine operation switch upper 66 and a work machine operation switch lower 67, a work machine operation cam potentiometer 32, a lift angle potentiometer 27, a travel distance sensor 42, a roll detection switch 65, and a cutter operation detection. Upon receiving an input of an electric signal from the switch 46f, the work machine operation cam motor 30, the alarm lamp 70 and the alarm buzzer 71 are operated.

  Next, the multi-cutting request control S1 and the work machine operation control S2 for preventing the operator from erroneously raising the planting work machine 6 before the sheet S fed to the field is cut will be described. The multi-cut request control S1 and the work equipment operation control S2 are subroutines executed by the control unit 40, and are sequentially repeated in the order of the multi-cut request control S1 and the work equipment operation control S2.

  FIG. 10 shows a flowchart of the multi-disconnection request control S1. The multi-cut request control S1 is intended to determine whether or not the control unit 40 has traveled a predetermined distance while feeding the sheet S to the field as one of the conditions for operating the alarm lamp 70 and the alarm buzzer 71. Control. The operator first confirms that the mat seedling is placed on the seedling mounting table 9 and that the sheet storage unit 10 has stored therein a sheet S having a sufficient length for planting work. With the work machine 6 raised, the sheet S is manually fed out until the leading end of the sheet S reaches behind the roller float 12 as shown in FIG. 5B. Next, the operator switches the starter switch 72 to the ON state to start the main routine by the control unit 40, switches the work implement preparation switch 26 to the ON state, and causes the traveling machine body 4 to travel in the field.

  When the multi-cut request control S1 is started, the control unit 40 determines whether or not the work implement preparation switch 26 is on (step S12). In step S12, when the work implement preparation switch 26 is in the off state (OFF in step S12), the control unit 40 returns the processing to the main routine, and when it is in the on state (ON in step S12), the control unit 40 It is determined whether or not the roll detection switch 65 is on (step S13). In step S13, when the roll detection switch 65 is in the ON state (ON in step S13), the control unit 40 returns the processing to the main routine. When the traveling machine body 4 reaches the position where the planting work is started, the operator lowers the work machine operation lever 21 to lower the planting work machine 6 until the planting work machine 6 is in the automatic elevating state.

  In step S13, when the roll detection switch 65 is in the OFF state (OFF in step S13), that is, when the sheet S having a predetermined length or more is stored in the sheet storage unit 10, the control unit 40 controls the sheet S by the operator. It is determined whether or not the disconnection operation has been performed (step S14). In step S14, when there is no cutting operation of the sheet S (OFF in step S14), that is, when the cutter operation detection switch 46f remains in the off state, the control unit 40 raises the planting work machine 6 If it is either the fixed state or the automatic elevating state, the process returns to the main routine. If the planting machine 6 is in the planting state or in the descending state, it is determined whether the count flag is in the off state. (Step S18). When the count flag is off in step S18 (YES in step S18), the control unit 40 sets the count flag to the on state, and determines whether or not to activate an alarm lamp and an alarm buzzer. Is started (step S19). The operator makes the traveling machine 4 travel straight in the state where the accumulation of the traveling distance is started, starts the planting operation, and operates the cutter lever 46a when the traveling machine 4 reaches the edge of the field to control the sheet. The roll-shaped sheet S stored in the storage unit 10 is separated from the sheet S fed to the field.

  When the count flag is already on in step S18 (NO in step S18), control unit 40 determines whether or not the traveling distance is equal to or longer than the predetermined distance (step S20). In step S20, when the traveling distance has not reached the predetermined distance (NO in step S20), control unit 40 returns the process to the main routine, and when the traveling distance has reached the predetermined distance (step S20). YES), the control unit 40 determines whether or not the multi-lay flag is in an off state (step S21). In step S21, when the multi-lay flag is on (NO in step S21), the control unit 40 returns the process to the main routine, and when the multi-lay flag is off (YES in step S21), the control unit 40 turns on the multi-laying flag, returns the integrated value of the traveling distance to 0, and turns off the count flag (step S22). In step S14, when the cutter operation detection switch 46f is in the ON state (ON in step S14), the control unit 40 determines whether or not a multi-cut request detailed in the work machine operation control S2 has been issued (step S14). S23). The multi-cut request is a request for turning on the alarm lamp 70 and outputting an alarm sound from the alarm buzzer 71 when the alarm is output from the control unit 40. In step S23, when control unit 40 has not issued the multiple disconnection request (NO in step S23), control unit 40 returns the process to the main routine, and when it has issued the multiple disconnection request (YES in step S23), The control unit 40 stops the multi disconnection request, turns off the multi installation flag, and returns the processing to the main routine.

  FIG. 11 shows a flowchart of the work implement operation control S2. The work machine operation control S2 is a control for operating the alarm lamp 70 and the alarm buzzer 71 and raising and lowering the planting work machine 6 according to each condition. When the work machine operation control S2 is started, the control unit 40 determines whether or not the work machine operation switch 67 has been operated (step S31). In step S31, when the work machine operation switch lower 67 has been operated (there is step S31), when the planting work machine 6 is in the fixed state (steps S35 and S38 are fixed), The work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the lowered position, the planting work machine 6 is lowered (steps S36 and S39), and the process returns to the main routine, and the planting work machine 6 is raised. When (step S33 and step S37 rise), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the fixed position, and the planting work machine 6 is set to the fixed state (step S40). return.

  Also, in step S31, when the work machine operation switch lower 67 has been operated (there is step S31), the control unit 40 sets the work machine preparation switch 26 to the ON state and the planting work machine 6 to move up and down automatically. If there is (YES in step S41), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the planting position, the planting work machine 6 is planted (step S43), and the process returns to the main routine. When the work machine preparation switch 26 is on and the planting work machine 6 is in the lowered state (NO in step S41), the position of the work machine operation cam 31 is maintained, and the planting clutch enters a waiting state (step S42). Then, the process returns to the main routine. Also, in step S31, when the work machine operation switch lower 67 is operated (there is step S31), the planting work machine 6 is in the planting state, or the work machine preparation switch 26 is in the off state and the planting work machine is in operation. When 6 is any of the descending state, the automatic elevating state, and the planting state (other than planting in step S35 and fixing in step S38), the process returns to the main routine.

  After the sheet S is cut off at the field edge, the operator raises the work machine operation lever 21 to move the planting work machine 6 up. In step S31, when there is no operation of the work machine operation switch lower 67 (no step S31), the control unit 40 determines whether or not the work machine operation switch upper 66 has been operated (step S44). When there is no operation of the machine operation switch 66 (No in step S44), the control unit 40 determines whether or not the planting clutch is in a waiting state (step S45). In step S45, when the control unit 40 is not in the state of waiting for the planting clutch (NO in step S45), or when the waiting state is in the state of waiting for the planting clutch but the planting work machine 6 is in the down state (NO in step S46), the processing is performed. Is returned to the main routine, and when the control unit 40 is in the waiting state for the planting clutch and the planting work machine 6 is in the automatic elevating state (YES in step S46), the control unit 40 drives the work machine operation cam motor 30. Then, the work machine operation cam 31 is brought to the planting position, the planting work machine 6 is brought into the planting state, and the planting clutch engagement waiting state of the control unit 40 is released (step S47), and the process returns to the main routine.

  When the work machine operation switch 66 is operated in step S44 (step S44 is present), when the planting work machine 6 is in the ascending state (up in step S48), the control unit 40 executes the main routine. When the planting work machine 6 is in the fixed state (fixed in step S50), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the raised position, and the planting work machine 6 is raised ( Step S52) The process returns to the main routine. When the planting work machine 6 is in the lowered state (NO in step S53), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the fixed position, and the planting work is performed. When the planting machine 6 is in the fixed state (step S54), the process returns to the main routine. When the planting work machine 6 is in the planting state (planting in step S50), the work machine operation cam mode 30 drives the the lowered position working implement operation cam 31, the planting work machine 6 as an automatic lifting state returns (step S51) the process to the main routine.

  When there is an operation of the work machine operation switch 66 in step S44 (there is step S44), when the planting work machine 6 is in the automatic elevating state (YES in step S53), the multi-laying is performed. It is determined whether or not the flag is on (step S55). When the multi-lay flag is on in step S55 (YES in step S55), that is, when the operator raises the work implement operation lever 21 before cutting the sheet S, the control unit 40 issues a multi-cut request. Then, the alarm lamp 70 and the alarm buzzer 71 are activated (step S56) to urge the operator to divide the sheet S, and the process returns to the main routine. In step S55, when the multi-laying flag is in the off state (NO in step S55), the control unit 40 drives the work machine operation cam motor 30 to set the work machine operation cam 31 to the raised position, and moves the planting work machine 6 The process is returned to the main routine as the ascending state (step S52). The operator raises the planting work machine 6 to turn the traveling machine body 4 at the end of the field, and when the planting mechanism 11 reaches the last planting end position, lowers the planting work machine 6 to perform planting. Resume work.

  With the above configuration, the multi-planting machine 1 according to the present embodiment regulates the raising operation of the planting work machine 6 when the sheet S travels a predetermined distance or more while feeding the sheet S to the field, and releases the regulation by cutting the sheet S. With this configuration, it is possible to prevent the operator from inadvertently raising the planting work machine 6 before the sheet S is divided, and it is not necessary to perform another operation to release the regulation. Work load can be reduced.

  When the roll detection switch 65 is continuously turned off and the planting work machine 6 is in the automatic elevating state, the control unit 40 performs the planting work when the traveling distance of the traveling machine body 4 becomes a predetermined distance or more. Since the lifting operation of the machine 6 is regulated, the distance traveled by the traveling machine 4 while feeding the sheet S to the field can be accurately measured, and the planting work machine 6 can be planted when there is no inconvenience even if the lifting operation is performed. It is possible to prevent the raising operation of the machine 6 from being restricted.

  The control unit 40 activates the alarm lamp and the alarm buzzer when the work implement operation lever 21 is operated in a state where the operation of assembling the work implement 6 is restricted. Can be notified to the operator, and the operator can be prompted to cut the sheet S.

  In a state where the raising operation of the planting work machine 6 is restricted, the control unit 40 ignores the raising operation of the work machine operation lever 21 and again raises the work machine operation lever 21 after cutting the sheet S. In this case, the planting work machine 6 is lifted, so that even if the operator erroneously raises the work machine operation lever 21 before the sheet S is divided, no separate operation is required to release the restriction, and the operator does not need to perform another operation. The operation burden can be reduced.

  Next, a second embodiment of the present invention will be described with reference to FIG. The riding type multi-planter 101 according to the present embodiment is the same as the first embodiment, except that the work machine operation control S102 is different from the first embodiment, and the other is the same. The configuration and the control are omitted from the drawings, or the same reference numerals are given to the drawings, and the description is omitted.

  When the work machine operation control S102 is started, the control unit 40 determines whether or not the work machine operation switch lower 67 has been operated (step S31). In step S31, when there is no operation of the work implement operation switch 67 (there is no step S31), the control unit 40 determines whether or not the work implement operation switch 66 is operated (step S144). In step S144, when operation of the work implement operation switch 66 is performed (the presence of step S144), when the planting work implement 6 is in the up state (up in step S149), the control unit 40 performs the main process. Returning to the routine, when the planting work machine 6 is in the fixed state (fixed in step S151), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the raised position, and the planting work machine 6 is set to the raised state. (Step S153) The process returns to the main routine. When the planting work machine 6 is in the lowered state (NO in step S154), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the fixed position, and the planting is performed. When the work machine 6 is set in the fixed state (step S155), the process returns to the main routine, and when the planting work machine 6 is in the planted state (planted in step S151), Business machine operation cam motor 30 is driven and lowered position working implement operation cam 31, the planting work machine 6 as an automatic lifting state returns (step S152) the processing to the main routine.

  In step S144, when operation of the work implement operation switch 66 is performed, and when the planting work implement 6 is in the automatic elevating state (YES in step S154), the control unit 40 sets the multi-laying flag to the on state. It is determined whether or not (step S156). In step S156, when the multi-laying flag is in the off state (NO in step S156), the control unit 40 drives the work machine operation cam motor 30 to set the work machine operation cam 31 to the raised position, and moves the planting work machine 6 The process returns to the main routine as the ascending state (step S153). In step S156, when the multi-lay flag is on (YES in step S156), that is, when the operator raises the work implement operating lever 21 before cutting the sheet S, the control unit 40 issues a multi-cut request. Then, the alarm lamp 70 and the alarm buzzer 71 are activated to urge the operator to cut the sheet S, and the control unit 40 is set in a waiting state for ascending, temporarily suspending the ascent operation of the planting work machine 6 (step S157). Processing returns to the main routine.

  When there is no operation of the work implement operation switch 66 in step S144, the control unit 40 determines whether or not the control unit 40 is in the ascending waiting state (step S145), and when not in the ascending waiting state (step S145). NO), the control unit 40 determines whether or not the planting clutch is in a waiting state (step S146). In step S146, when control unit 40 is not in the waiting state for planting clutch engagement (NO in step S146) or when in the waiting state for planting clutch engagement and planting work machine 6 is in the lowered state (NO in step S147), The process returns to the main routine. When the control unit 40 is in the waiting state for the planting clutch and the planting work machine 6 is in the automatic elevating state (YES in step S147), the control unit 40 drives the work machine operation cam motor 30. Then, the work machine operation cam 31 is set to the planting position, the planting work machine 6 is set in the planting state, the waiting state for the planting clutch engagement of the control unit 40 is released (step S148), and the process returns to the main routine.

  In step S145, when the control unit 40 is in the waiting state for ascending (step S145: YES), and when the multi-lay flag is on (NO in step S158), the process returns to the main routine. When the multi-lay flag is in the OFF state (YES in step S158), the work machine operation cam motor 30 is driven to set the work machine operation cam 31 to the ascending position, the planting work machine 6 is ascended, and the ascending waiting state is released. Then, the process returns to the main routine (step S159).

  With the above configuration, according to the present embodiment, the control unit 40 controls the operation of the planting working machine 6 when the working machine operation lever 21 is raised in a state where the raising operation of the planting working machine 6 is restricted. Since the ascent operation is temporarily stopped and the ascent operation of the planting work machine 6 is started when the sheet S is divided, the operator erroneously operates the ascending operation lever 21 before the sheet S is divided. Even in such a case, no separate operation is required to release the regulation, and the operation burden on the operator can be reduced.

  In addition, the measurement of the traveling distance of the traveling body 4 is always performed while the traveling body 4 is traveling, and the traveling distance when traveling while feeding the sheet S to the field from the total traveling distance is extracted. The raising of the planting work machine 6 may be restricted. Although the travel distance of the traveling machine body 4 is calculated based on the result of measuring the rotation amount of the input shaft 36, the rotation amount of the rear wheel 3 may be directly measured, or the input shaft 36 and the rear wheel may be measured. The rotation amount of No. 3 may be measured together. In addition, the front wheel 2 or the rear wheel 3 may be a crawler-type traveling device, and the travel distance may be measured directly or indirectly by the rotation amount of a driving wheel or a rolling wheel of the crawler. The alarm by the alarm lamp 70 may be performed by a liquid crystal display or the like instead.

1,101 Multi rice transplanter 2 Front wheel 3 Wheel (rear wheel)
Reference Signs List 4 traveling machine 6 planting work machine 10 sheet storage unit 15 cutting means (sheet cutting mechanism)
21 Work implement operating tools (work implement operating levers)
39 Mileage measuring means (mileage measuring mechanism)
40 control section 46f cutting detection means (cutter operation detection switch)
70 Notification means (alarm lamp)
71 Notification means (alarm buzzer)
S sheet

Claims (5)

A traveling machine supported by wheels, a planting operation machine supported on the traveling machine so as to be able to move up and down, and a sheet storage unit capable of accommodating a roll-shaped sheet covering a field scene; In a multi-rice transplanter for transplanting seedlings to a field from the top of a continuously fed sheet,
A work implement operating tool for raising or lowering the planting work machine by raising or lowering operation,
Travel distance measuring means for measuring the travel distance based on the rotation amount of the wheel,
Cutting means capable of separating the rolled sheet and the fed sheet,
Cutting detection means for detecting separation of the sheet by the cutting means,
When the traveling body travels a predetermined distance or more while feeding the sheet to the field, the ascent operation by the work implement operating device is restricted, and the restriction is released when the cutting detection unit detects the separation of the sheet by the cutting unit. And a control unit.
Multi rice transplanter characterized by the following. The control unit is configured such that the sheet having a predetermined length or more is stored in the sheet storage unit, and the planting work machine is running while touching the ground and the traveling body is running while feeding the sheet to a field. Judge that there is
The multi rice transplanter according to claim 1. It comprises a notifying means that operates when there is a lifting operation of the work implement operating tool in the restricted state,
The multi rice transplanter according to claim 1. The control unit, in the regulated state, ignores the lifting operation of the work implement operating tool,
The multi rice transplanter according to any one of claims 1 to 3. The control unit, when there is a lifting operation of the work implement operating tool in the restricted state, suspends the ascent operation during the regulation, and cancels the suspend when detecting the separation of the sheet by the cutting means. By raising the planting work machine,
The multi rice transplanter according to any one of claims 1 to 3.

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