JP2012120490A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily carry out transplanting work by simple operation of a single operating tool without causing erroneous operation, and to reduce the number of components.SOLUTION: A planting device is lifted by the operation of a single operation lever 25 in the vertical direction, and the direction of swinging out right and left markers is set by the operation of the operation lever 25 in the longitudinal direction. A three-position selector switch 29 operates a direction indicator when a working machine preparation switch 30 is off. When the switch 30 is on, the selector switch 29 switches the mode of the markers either to a both marker projecting mode, to an automatic mode or to a stop mode.

Description

  The present invention relates to a working machine such as a planting device, a transplanter such as a riding rice transplanter equipped with a marker and a direction indicator, and more specifically, raising and lowering of the working machine, mode switching of a marker, and an ejection direction and direction of a left and right marker. The present invention relates to an operation device for each operation of a vessel.

  Conventionally, a riding rice transplanter has been provided with a (hand) operation lever in the driving operation section, and by operating the operation lever up and down, the planting device is controlled to move up and down, and the operation lever is operated in the front-rear direction. Thus, the operation mode of the marker is switched. Specifically, when the operation lever is operated toward the rear of the machine body, a marker automatic mode in which the left and right markers are alternately switched in accordance with the raising and lowering of the planting device is entered, and once in the backward direction of the operation lever. For each operation, the direction of the left and right markers is sequentially switched. Further, when the operation lever is operated in front of the machine body, it is sequentially switched between a double-feed mode in which the left and right markers are simultaneously extended to the working position and a stop mode in which the marker is stopped (see Patent Document 1).

  In addition, other passenger rice transplanters operate the operation lever arranged in the driving operation unit once in the upward direction, so that the planting clutch is operated to the transmission cut-off side and the planting device is operated to rise, and The marker in the operating position is pulled up to the retracted position as the planting device is raised. Further, when the operation lever is operated once more upward, the planting device is lowered to the surface. In this state, when the operation lever is operated once in the rearward direction, the hook of the opposite marker is removed, the marker is switched to the operating position, and the planting clutch is operated to the transmission side.

  And, in the planting work, the auxiliary transmission lever is in the low speed position, and the above-described operation lever lifts the planting device and performs the switching operation of the planting clutch and the marker. The auxiliary transmission lever is switched to the high speed position. In this state, the operation lever is switched to the operation of the direction indicator. When the operation lever is operated in the forward direction, the left direction indicator flashes, and when operated in the rear direction, the right direction indicator flashes (patented). Reference 2).

JP 2000-125613 A JP-A-8-331908

  With the former (see Patent Document 1), the operation lever can be operated to raise and lower the planting device, determine the marker ejection direction, and change the marker mode with a single operation lever, thereby reducing the number of parts. However, the operation is complicated and the operator may be confused.

  The latter operation (see Patent Document 2) can be operated with a single operation lever to move the planting device up and down and the direction indicator. Therefore, there is a concern that the planting device may unexpectedly operate when operating the direction indicator while traveling on the road due to the switching error.

  In addition, there is a marker mode switching operation tool and a direction indicator operation tool, which are provided separately, but this increases the number of parts.

  Therefore, the present invention can perform the operation of raising and lowering the work implement (planting device) and setting the direction of the left and right markers in a natural sense with a single operation tool, and the operation tool of the direction indicator is in the marker mode. It is an object of the present invention to provide an operation device for a transplanter that is also used for switching so that there is no erroneous operation or malfunction during a direction indicating operation and the number of parts is reduced.

The present invention includes a traveling machine body (5) supported by the front wheels (2) and the rear wheels (3) and having a driving operation unit (11), and a work machine (12) supported by the traveling machine body so as to be movable up and down. A transplant comprising left and right markers (20) provided on the left and right sides of the working machine so as to be freely swingable from a storage position stored above to a work position in contact with the rice field, and left and right direction indicators (18). In machine (1),
A single operating tool (25) for setting the swinging direction of the left and right markers (20) to the driving operation unit (11) and moving the working machine (12) up and down, and neutral, right and left 3 A change-over switch (29) capable of switching to a position,
When it is determined that the working machine (12) is in a non-working state, the changeover switch (29) functions for operating the left and right direction indicators (18), and the working machine (12) When it is determined to enter a state, a marker automatic mode in which the left and right markers can be switched out each time the working machine is moved up and down, a both-out mode in which the left and right markers are in a swinging state at a working position, A control unit (40) for switching so as to function as a marker mode switching function for switching to a stop mode in which the left and right marker ejection is stopped;
The transplanter is characterized by that.

The driving operation unit (11) includes left and right direction indicating indicators (281, 28r) for displaying the operation of the direction indicator (18),
The neutral position of the switch (29) corresponds to the marker automatic mode when functioning for switching the marker mode,
When the changeover switch (29) functions for switching the marker mode, the left and right direction indicating indicators (281, 28r) display the left and right marker ejection directions in the marker automatic mode.

  The determination of entering the non-working state and the working state is performed by a switch (30) that activates alarm control during the work, and when the switch (30) is turned on, the changeover switch (29) is set in the marker mode. It functions as a switch, and when the switch (30) is turned off, the switch (29) functions as an operation of the direction indicator (18).

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not have any influence on description of a claim by this.

  According to the first aspect of the present invention, the lifting / lowering operation of the working machine and the setting of the marker ejection direction are performed by a single operating tool, and the operating direction of the operating tool is set to the lifting / lowering direction of the working machine and the marker. The operation of the operation tool becomes a simple operation that matches the sense of the operator, for example, by making it the same as the swinging direction of the device, and the operation at the time of transplanting work can be facilitated and the occurrence of erroneous operations and malfunctions can be eliminated. .

  Further, since the marker mode switching is also used as a three-position switching switch for operating the direction indicator, it is possible to reduce the number of parts without requiring a marker mode switching switch, and the switching switch enters a working state. Depending on whether or not it is switched between the direction indicator operation and the marker mode switching, there is no concern that the work machine will unexpectedly descend during the direction instruction operation, and the operation can be performed with high reliability and a sense of security.

  According to the second aspect of the present invention, since the marker automatic mode is set at the neutral position of the changeover switch that does not operate the left / right direction indicator, in the transplanting operation, the marker automatic mode is often used. When moving from the road running into the field and shifting to the transplanting operation, or vice versa, it is often unnecessary to switch the changeover switch in the neutral position, Simple and less confusing.

  According to the third aspect of the present invention, the switch that activates the alarm control that warns that the seedling has run out, the fertilizer has run out, etc. is turned on at the time of transplanting work. Sometimes it is switched for the direction indicator and at the time of work for switching the marker mode, so that the operation is simple and easy, and an erroneous operation can be prevented.

The whole side view of the riding rice transplanter which can apply this invention. The figure which shows the driving | operation operation part. The figure which shows the 3 way (3 position) changeover switch. The figure which shows the display panel. The rear view which shows one marker part of a riding rice transplanter. The rear view which shows the marker drive part. It is a figure which shows the operation | movement, (a) shows the storing attitude | position of a marker, (b) shows the working attitude | position of a marker. The block diagram of the control part. The main flow diagram. Flow chart of direction display control. The work machine (planting device) operation control flowchart. The flowchart of marker ejection mode control. The flowchart of marker output control.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, a riding rice transplanter 1 as a transplanter has a machine body (running machine body) 5 supported by a front wheel (running wheel) 2 and a rear wheel (running wheel) 3. A center pole 6 is provided in front of the vehicle, and an engine covered with a bonnet 7 is mounted. Behind the bonnet 7, there is provided a driving operation unit 11 in which a steering handle 9 and a driver seat 10 on which an operator sits are disposed, and on the rear side of the driver seat 10 is a working machine. A planting device 12 is connected to the machine body 5 via an elevating link mechanism 14 so as to be movable up and down.

  The planting device 12 includes a seedling stage 13 on which mat seedlings are placed, and a planting operation unit 15 that scrapes seedlings from the seedling stage 13 and plants them in a farm field. A plurality of floats 19 for leveling the field are provided below the planter case 17 that rotatably supports the rotary case 16. One of the plurality of floats 19 is a sensing float for adjusting the planting depth by controlling the planting device 12 up and down according to the situation of the farm scene during work.

  Further, on both the left and right sides of the planting device 12, there are provided drawing markers 20 that are drawn to the non-planting side of the farm field and draw the running reference line in the next planting process to the farm field. The marker wheel 22 is configured to include a marker wheel 21 rotatably supported at the tip of the marker arm 22 and a marker motor unit 23 that swings out and stores the marker arm 22. Direction indicators (winkers) 18 (18r, 18l) are arranged on the left and right sides of the seedling table 13.

  On the other hand, on the lower side of the steering handle 9, as shown in FIG. 2, there is a (hand) operating lever (single operating tool) 25 that is urged to return to the neutral position and can be tilted up and down and back and forth. The operating lever 25 is provided to operate a planting (working) clutch that connects / disconnects the lifting / lowering of the planting device (work machine) 12 and power transmission to the planting device by operating in the vertical direction.

  Specifically, for example, when the operation lever 25 is operated upward from a state where the planting clutch is connected (planted), the planting clutch is disconnected (planted) and the planting clutch is disconnected. When the operation lever 25 is further operated upward from the state where it is applied, the planting device 12 is raised. Further, when the operation lever 25 is tilted downward from the state where the planting clutch is disengaged and the planting device 12 is raised, the planting device 12 is first lowered, and further, the operation lever 25 is moved downward. When tilting to, the planting clutch is connected. Furthermore, while the planting device 12 is moving up and down, the operation of the operation lever 25 on the side opposite to the lifting direction can be stopped. On the other hand, the operation lever 25 is operated in the front-rear direction, so that the left and right drawing markers 20 are stowed and stowed on the side of the aircraft (solid line position in FIG. 5), and are swung out and extended to the outside of the aircraft. It is also configured to be able to switch to the working posture (the two-dot chain line position in FIG. 5).

  Further, a changeover switch 29 for operating the direction indicator is disposed below the operation lever 25. As shown in detail in FIG. 3, the change-over switch 29 is composed of a three-way (three-position) change-over switch for changing to a neutral position, a right tilt position, and a left tilt position, and is held in these change positions. Also serves as a function to switch the marker mode outside of the instruction. Specifically, in the neutral position, the marker mode is an automatic position for automatically switching the left and right swinging direction of the marker by raising and lowering the planting device, and also a cutting position for direction indication. At the right tilt position, the marker mode becomes a stop position for holding the marker at the storage position, and the right direction indicator blinks. At the left tilt position, the marker mode becomes a double-out position with both the left and right markers as the swing-out position, and the left direction indicator blinks.

  In addition, the dashboard (display) panel 27 arranged in front of the steering handle 9 in the driving operation unit 11 has various work displays during planting work as shown in FIG. A left direction indicating lamp 28l and a right direction indicating lamp 28r flashing in synchronization with the operation of the indicator 18 are provided. The left and right direction indicating lamps 28l and 28r are used not only for the display of the left and right direction indicators but also for the display of the left and right markers. The lamp lights continuously. Further, as shown in FIG. 2, the steering handle 9 is provided with a work preparation switch 30 and its operation indicator lamp 30a in addition to the hydraulic sensitivity dial 26. The work preparation switch 30 is used during planting work. Various controls (for example, horizontal control of the planting device, operation of the planting clutch by the operation lever 25), and various alarms (for example, seedling runout, fertilizer runout) are switched ON and OFF.

  Next, the lifting mechanism of the planting device (planting unit) 12 will be described. Expansion and contraction of the elevating cylinder 14a (see FIG. 1) of the elevating link mechanism 14 that elevates the planting unit 12 is controlled by a control valve 126 shown in FIG. 6, and the control valve 126 has a substantially rectangular operating arm 127 in side view. have. A clutch arm 129 for connecting and disconnecting the above-described planting clutch is provided in the vicinity of the operating arm 127, and the operating arm 127 for operating the clutch arm 129 and the control valve 126 is interlocked by a work machine operation cam 130. Configured to be operated. The work implement operation cam 130 is rotationally driven by the work implement operation cam motor 131 and its rotation position is detected by the work implement operation cam potentiometer 32.

  That is, in response to the tilting operation of the work implement operation lever 25 in the vertical direction, the work implement operation cam 130 is moved to a raised position where the planting clutch is disengaged and the planting portion 12 is in the raised position, and the planting clutch. Is fixed and the planting part 12 is in a stopped state, the planting clutch is disconnected and the planting part 12 is in the lowered position, the planting clutch is connected, and the planting part The working machine operation cam motor 131 is set to any one of the planting positions where 12 is a lowered position, and the raising / lowering of the planting part 12 and the connection / disconnection of the planting clutch are operated.

  Next, the configuration of the left and right drawing markers 20 will be described in detail. As shown in FIG. 5, the drawing marker 20 is switched between a storage posture and a working posture by the marker motor unit 23 described above. The marker motor unit 23 includes a marker motor as shown in FIGS. 6 and 7. 35, a rack 36 that meshes with the output gear 35 a of the marker motor 35, and a marker holding member 39 attached to an attachment shaft 37 of the rack 36.

  A base end portion 22 a of the marker arm 22 is rotatably attached to the attachment shaft 37, is biased toward the working posture by a spring 44, and is a marker holding member provided integrally with the attachment shaft 37. It is positioned by abutting 39.

  The rotation of the marker motor 35 is transmitted to the mounting shaft 37 via the rack 36, and the marker arm 22 can be switched in position by rotating the marker holding member 39 integrally with the mounting shaft 37. Yes.

  7A and 7B, a marker storage detection switch 41 for detecting the storage posture of the drawing marker 20 is provided on the upper side of the rack 36, and on the lower side of the rack 36. Is provided with a marker swing detection switch 42 for detecting the swinging posture of the drawing marker 20, and when the marker arm 22 is stood upward and stored, the upper cam portion 36a of the rack 36 is moved to the marker storage detection switch. 41, the retracted posture of the drawing marker 20 is detected (the state shown in FIG. 7A), and the lower cam portion 36b of the rack 36 is moved to the marker ejection detection switch 42 when the marker arm 22 is ejected. In contact with each other, the swinging posture of the drawing marker 20 is detected (state shown in FIG. 7B).

  Next, the control unit 40 of the transplanter 1 will be described. FIG. 8 is a control block diagram of the transplanter 1. On the input side of the control unit 40, a work machine operation switch (upper side) 50a for detecting the above-described tilting operation of the work machine operation lever 25 is provided. A work machine operation switch (lower side) 50b for detecting a downward tilting operation of the machine operating lever 25, a marker operation switch (front side) 51a for detecting a forward tilting operation of the work machine operating lever 25, and a work machine operation Marker operation switch (rear side) 51b for detecting a tilting operation to the rear side of the lever 25, marker storage detection switches 41L and 41R, marker swing detection switches 42L and 42R, and working equipment provided for the left and right drawing markers 20, respectively. The operation cam potentiometer 32 is connected, and the on / off operation of the planting clutch for connecting / disconnecting the power to the planting part 12 is enabled and the three-way switching is performed. The work preparation switch 30 that switches the function of the switch 29, the three-way switch 29 that is a switch for the direction indicator that also switches the marker operating mode, and the lift angle potentiometer that detects the height position of the planting portion 12. 56 and the like are connected.

  On the other hand, on the output side of the control unit 40, the working machine operation cam motor 31, the left and right marker motors 35R and 35L, the left and right direction indicator display lamps (direction lamps) 28l and 28r on the panel 27, and the left and right direction indicator (winker) Lamps) 18l and 18r are connected.

  Further, the control unit 40 has marker output means 40b for setting the drawing direction of the drawing marker 20 based on the front / rear operation of the work implement operation lever 25, and is based on a signal from the lift angle potentiometer 56. The elevation height of the attaching part 12 is detected, and it is determined whether the planting part 12 is at an elevated position that is higher than the switching reference position (switching height, predetermined reference height) or lower than the switching reference position. Elevated position detecting means for detecting is provided. It should be noted that the switching reference position is set on the upper side of the reference position for reference (the height of protrusion) that serves as a reference for whether or not the drawing marker 20 is to be executed.

  Next, control of the drawing marker 20 will be described with reference to FIGS. FIG. 9 is a main flow relating to the drawing out of the drawing marker 20 which also serves as the operation of the direction indicator, and the control unit 40 performs the direction display control S1, the planting work machine operation control S2, the shaking mode control S3, and the marker output control S4. Each control is repeatedly executed in this order.

[Direction display control]
As shown in FIG. 10, the direction display control S1 determines whether or not the work preparation switch 30 is ON (S111). Since the work preparation switch 30 is a switch that is turned on at the time of planting work, when the switch is turned on, the planting work is in progress or in a preparation stage thereof. Work in progress). When the above step S111 is YES, that is, when the work preparation switch 30 is ON, it is in the planting work state, and the direction (instruction) lamps 28l and 28r on the panel 27 indicate which one of the left and right markers is to be shaken (see FIG. 4). The driver is informed by turning on and the left and right turn indicators (winker lamps) 18 (l, r) are turned off (S111).

  When the above step S111 is NO, that is, when the work preparation switch 30 is OFF, it is a road running state other than the planting work, and the three-way switch 29 functions as a direction indicating switch. When the direction indicating switch 29 is tilted to the right (right ON) (S113; YES), the right direction lamp 28l is turned on and the right direction indicator (right turn signal lamp) 18l is flashed (S114). When step S113 is NO and the direction indicating switch 29 is tilted to the left (left ON) (S115; YES), the left direction indicator 28l flashes and the left direction indicator (left turn signal lamp) 18l flashes. (S116).

  When step S115 is NO, that is, when the three-way selector switch 29 is in the neutral position, both the left and right direction lamps 28l and 28r are turned off, and the left and right direction indicators (left and right turn signal lamps) 18l and 18r are both turned off (S117). ).

[Work machine operation control]
The work implement operation control S2 is control related to the raising and lowering of the planting device (planting portion) 12 by the work implement operation lever 25. As shown in FIG. 11, first, the work implement operation lever 25 is moved upward or downward. It is determined whether the tilting operation has been performed (S10, S11). Then, when the work implement operating lever 25 is operated upward (S11), the planting device 12 is in the planting state in the lowered position and the planting clutch is connected (S12, S13, S14). The control unit 40 operates the work machine operation cam motor 31 to set the work machine operation cam 130 to the lowered position, and disengages the planting clutch (S15).

  When the planting device 12 is in the lowering operation (S16), the lowering operation is stopped to fix the position of the planting device 12 (S17), and the planting device 12 is in a state where the planting clutch is disconnected. In the lowered state at the lowered position (S13, S16), the planting device 12 is raised to the raised position (S18). In addition, when the planting apparatus 12 exists in a raise position or is raising operation | movement, the planting apparatus 12 will be in a raise position as it is (S12).

  On the other hand, when the work implement operating lever 25 is operated to the lower side, first, it is determined whether the work preparation switch 30 is on or off (S19), and it is determined whether or not the planting device 12 may be in the planting state. (S20, S21). When the planting device 12 is in the lowered state when the work preparation switch 30 is turned on (S22, S24), the control unit 40 operates the work machine operation cam motor 31 to move the work machine operation cam 30. The planting position is set and the planting clutch is connected (S23, S25).

  When the planting device 12 is in the descending operation, the planting clutch is put into a waiting state (S26, S31), and after the descending operation of the planting device 12 is stopped (S32), the planting clutch is connected. (S33).

  Furthermore, regardless of whether the work preparation switch 30 is on or off, when the planting device 12 is in the ascending operation (S20, S28), the planting device 12 stops its ascending operation and is fixed at that position ( Step S27).

  Further, when the work preparation switch 30 is off, the planting clutch cannot be connected to the planting device 12 so that the planting device 12 is not planted. Position (S29, S30).

[Exit mode control]
As shown in FIG. 12, the swing mode control 53 is activated by turning on the work preparation switch 30 (S40; YES). When the work preparation switch 30 is OFF (S40; NO), the left and right markers 20 are in the storage state. (S41). When the work preparation switch 30 is turned on, it is first determined whether or not the marker automatic mode is based on the three-way switch 29 (S42). If YES, the planting part (planting device) is higher than the marker switching height (S43). ) And whether the planting clutch flag is ON (S44). If both are YES, the swing mode is set and the marker to be ejected is on the reverse side (left if right, right if left) The planting clutch flag is cleared and set (S45).

  In step S42, if the three-way selector switch 29 is not in the neutral automatic position (S42; NO), it is also determined whether the switch 29 is in the left tilt position. (S46). When the switch is in the double-out mode in which the switch is in the left tilt position (S46; YES), both the left and right markers are set at the swing-out position (S47). When the switch 29 is in the right tilt position (S46; NO), the marker is in the stop mode, and both the left and right markers are set to the storage position (S41).

  When both of Steps S43 and S44 are NO, the direction of the marker is artificially changed by the operation lever 25 which is a marker operation tool. That is, when the marker operating tool is operated backward (in the direction pulled by the driver) (S48; YES), it is determined whether the swing mode is the right swing (S49). The right marker is set so as to be ejected as the attaching device descends (S50). If the step S49 is YES, it is determined whether the swing mode is left swing (S51). If the left marker is already in the swing state (S51; YES), the left marker is set to the storage position.

  In the case of NO in step S48, it is determined whether the marker operating tool 25 has been operated forward (in the direction pushed by the driver) (S52). In the case of YES, it is determined whether the swing mode is the left swing (S53). If the left marker is not already in the swing state, the left marker is set to the left swing that becomes the swing position as the planting device is lowered (S54). If YES in step S53, it is determined whether the swing mode is the right swing (S55). If the right marker is already in the swing position, the right marker is set to the storage position (S56).

  When the left and right markers are not in the swing-out state when the marker operation tool 25 is operated forward and backward (S48; YES, S52; YES), it is determined whether the three-way selector switch 29 is in the neutral position, which is the marker automatic or ON (S57). ). In the case of YES, the right or right swing mode by S50 and S54 is read and set to the swing mode (S58), and sent to the next marker output control S4. If NO in step S57, since the three-way selector switch 29 is not in the automatic mode (S59; YES), the above-mentioned swing mode is stored and prepared for the next automatic mode (S42) (S60).

[Marker output control]
Next, the marker output control S4 for executing the setting of the drawing marker 20 set by the marker output control will be described. As shown in FIG. 13, the marker output control S <b> 4 first determines whether the height of the planting unit (planting device) 12 is equal to or less than the above-described ejection reference position (marker ejection height). It is determined whether or not it is at a height that can be ejected (an ejection execution position) that is equal to or less than the above-described ejection reference position (step S70).

  When the planting unit 12 is at a swingable height, an electrical signal is output to the left and right marker motors 35L and 35R based on the swing setting of the drawing marker 20 set in the marker mode setting.

  Specifically, when the drawing of the drawing marker 20 on the right side of the aircraft is set by the marker mode setting, the marker motor (right) 35R is driven to draw the drawing on the right side of the aircraft until the marker drawing detection switch 42R on the right side of the aircraft is turned on. The marker 20 is set to the working posture (steps S77 to S80).

  Further, when the storage of the drawing marker 20 on the right side of the aircraft is set by the marker mode setting, the marker motor (right) 35R is driven to draw the drawing marker 20 on the right side of the aircraft until the marker storage detection switch 41R on the right side of the aircraft is turned on. The storage posture is set (steps S85 to S88).

  On the other hand, for the drawing marker 20 on the left side of the aircraft, similarly, when the drawing of the drawing marker 20 on the left side of the aircraft is set by the marker mode setting, the marker motor (left) 35L until the marker out detection switch 42L on the left side of the aircraft is turned on. Is driven to bring the drawing marker 20 on the left side of the machine body into a working posture (steps S81 to S84).

  Further, when the storage of the drawing marker 20 on the left side of the aircraft is set by the marker mode setting, the marker motor (left) 35L is driven to move the drawing marker 20 on the left side of the aircraft until the marker storage detection switch 41L on the left side of the aircraft is turned on. The storage posture is set (steps S89 to S92).

  Further, when the planting unit 12 is higher than the reference swing position, that is, when the planting unit 12 is at a swing standby height (a swing standby position) higher than the swing reference position, the left and right marker storage detection switches 41L and 41R are turned on. If the marker storage detection switches 41L and 41R are not turned on, the marker motors 35L and 35R that are not turned on are driven to bring the drawing marker 20 into the storage posture (step S70). To S74). In other words, when the planting unit 12 is in the upper position, the marker output is in a double-up state in which the left and right line drawing markers 20 are in the storage posture.

  Next, the actual operation on the field will be described.

  When the operator starts the planting operation and gets into the machine body 5 and starts the engine, the worker enters from the entrance of the field and starts the planting operation from a position diagonal to the entrance.

  When starting the planting work, the worker first turns on the work preparation switch 30. Then, a position separated from the field by the number of lines of the planting device 12 is set as a work start position, and the planting device 12 is raised to set the drawing marker 20 to be drawn out. In this state, the three-way selector switch 29 is set to the double-out state in which it is tilted to the left.

  When the setting of the line drawing marker 20 is completed, the work implement operating lever 25 is operated downward to lower the planting device 12 and draw the planned travel line with the left and right line drawing markers 20 on both sides of the machine body 5. While planting.

  And if it comes to the opposite field end, it will turn in a headland and the planting apparatus 12 will raise automatically, and the left and right drawing markers 20 will be temporarily stored. When the turn is completed, the operator sets the three-way selector switch 29 to the neutral position and sets the automatic marker mode, and confirms whether the left or right marker is currently set to the swing-out position by turning on the direction indicating lamps 28l and 28r. To do. Then, if the non-planting side, which is the side to be drawn in the current planting operation, is the same as the current marker projection direction, the operation lever 25 is operated forward or backward. That is, if the non-planting side is the right side and the marker ejection direction is left, the operation lever 25 is operated backward to set the ejection direction to the right. On the other hand, when the unplanted side is the left side and the marker swinging direction is the right, the operation lever 25 is operated forward to set the swinging direction to the left.

  In this state, when the operator operates the work implement operation lever 25 downward to lower the planting device 12, the drawing marker 20 that has been set to swing out is swinged out. Then, after each turn, the swinging direction of the left and right line drawing markers 20 is automatically switched, and the planting operation proceeds while drawing the planned travel line on the non-planting side of the field.

  By the way, when a seedling is replenished to the seedling stage 13 during the planting operation, the worker raises the planting device 12. When the seedling supply is completed and the planting device 12 is lowered, the drawing direction of the drawing marker 20 is switched, and the drawing marker 20 on the opposite side of the machine body is shaken out. Is tilted forward or backward to swing out the unmarked side drawing marker 20, and the planting operation is continued.

  When the planting operation has progressed and the planting one step before the final planting process has been completed, the operator sets the three-way selector switch 29 to the right tilt position before turning and sets the marker to the operation stop mode, and draws the left and right lines. Set the marker in a double-lifted state and plant seedlings at the end of the field.

  When this final planting process is completed, the operator performs planting while traveling on the headland while keeping the drawing marker 20 in the double-raised state, and when it reaches the field end on the opposite side, the operator plans to travel first. Drive while planting using the line as a guide.

  Then, it travels again while planting seedlings on the opposite headland part, and goes out of the field from the field entrance.

  Then, when the planting work on the field is completed, the work preparation switch 30 is turned off. Thereby, the function of the three-way selector switch 29 is switched for the direction indication from the marker mode switching described above. When the riding rice transplanter 1 goes out of the field, the direction indicator 18 is operated by the three-way changeover switch 29 that has been switched and is used for direction indication. That is, when the switch 29 is set to the right tilt position, the right direction indicator (winker) 18l blinks and the right direction indicator lamp 28l on the panel 27 blinks. When the switch 29 is set to the neutral position, the two direction indicators 181 and 18r and the direction indicator lamps 181 and 18r are turned off. When the switch 29 is set to the left tilt position, the left direction indicator 18r blinks and the left direction indicator lamp 28r blinks.

1 transplanter (riding rice transplanter)
2 Front wheel 3 Rear wheel 5 Traveling machine body 11 Driving operation unit 12 Work machine (planting device)
18, 18l, 18r turn indicator
20 Marker 25 Single operation tool (work machine operation lever)
28, 28l, 28r Direction indicator (lamp)
29 (3 position, 3 way) changeover switch 30 (work preparation) switch 40 control unit

Claims (3)

A traveling machine body supported by front wheels and rear wheels and having a driving operation unit, a working machine supported by the traveling machine body so as to be movable up and down, and a work that comes into contact with the paddy field from the storage position stored on the left and right of the working machine. In a transplanter comprising left and right markers provided in a freely swingable position, and left and right direction indicators,
The operation unit includes a single operating tool for moving the working machine up and down and setting the left and right marker swing direction, and a changeover switch that can be switched between neutral, right and left positions,
When it is determined that the working machine is in a non-working state, the changeover switch functions as an operation of the left and right direction indicators, and when it is determined that the working machine enters a working state, the working machine Marker automatic mode in which the left and right markers can be switched out each time the robot is moved up and down, a double-out mode in which the left and right markers are in the working position, and a stop mode in which the left and right markers are stopped Comprising a controller that switches to function as a marker mode for switching,
A transplanter characterized by that. The driving operation unit includes left and right direction indicating indicators for displaying the operation of the direction indicator,
The neutral position of the changeover switch corresponds to the marker automatic mode when functioning for switching the marker mode,
When the changeover switch functions as the marker mode changeover, the left and right direction indicating display is configured to display a swinging direction of the left and right markers in the marker automatic mode.
The transplanter according to claim 1. The determination of entering the non-working state and the working state is performed by a switch that activates alarm control during the work, and when the switch is turned on, the changeover switch functions as a switch for the marker mode. When off, the changeover switch functions as an operation of the direction indicator,
The transplanter according to claim 1.

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