JP2007244320A - Riding type farm working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type farm working vehicle with which a stopping operation is easily performed even in the case of the traveling operation of the riding type farm working vehicle in a state in which an operator gets out of a driver seat. <P>SOLUTION: The riding type farm working vehicle is equipped with a stopping means for stopping the riding type farm working vehicle and an stopping operation part which is connected to the stopping means and arranged on a controlling part at the front part of a machine body. Since the stopping operation part connected to the stopping means is arranged on the controlling part at the front part of the machine body, the hand of an operator easily reaches the stopping operation part and the riding type farm working vehicle is stopped by an easy stopping operation in a state in which an operator is out of a driver seat even when the traveling operation of the riding type farm working vehicle is performed in a state in which an operator is out of a driver seat. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a stop device for a ride-type agricultural work vehicle such as a combine, a rice transplanter, and more specifically, a ride-type farm work vehicle that can be easily stopped when traveling from a driver's seat. Related to technology.

  Ride-type farm work vehicles may move up and down the pedestrians on the truck bed, cross over fences when moving in and out of the field, and move on steep slopes in mountainous areas. A type farm work vehicle may be largely tilted back and forth. In such a case, the worker may get out of the driver's seat and perform a traveling operation of the riding type agricultural work vehicle.

Conventionally, the front column is rotated forward to lower the lever position, and the side or in the rotated state so that the operator can easily operate the riding type agricultural work vehicle while the operator gets off the driver's seat. A riding-type agricultural work vehicle capable of operating a lever from the front has been developed (Patent Document 1).
JP-A-8-37893

  However, in the conventional riding-type farm work vehicle, when a stop operation of the riding-type farm work vehicle is performed in a state where the operator gets off the driver's seat, the parking lever provided on the front column has to be operated. . This parking lever may be difficult to reach by the operator from the front or side, and it may be difficult to stop the riding-type agricultural work vehicle.

  In addition, when restarting the engine after stopping the riding farm vehicle, it may be difficult for the operator to reach the key switch when the operator gets out of the driver's seat. In some cases, the restart operation after the vehicle stop operation is not easy.

  The stop operation of the riding-type agricultural work vehicle is performed when the main shift lever is at the forward position or the reverse position. When the engine is restarted after the stop operation, the operator returns the main shift lever to the neutral position. Otherwise, the riding farm vehicle may start at the same time as the engine restart operation.

The present invention has been made in view of the above-described problems, and the first object is easy even when the operator performs a traveling operation of the riding type agricultural work vehicle in a state where the worker gets out of the driver's seat. To provide a riding-type farm vehicle that can be stopped
The second purpose is to provide a riding-type farm work vehicle that can be easily restarted after a stop operation even when the operator has stepped off the driver's seat,
The third object is to provide a riding farm vehicle that prevents the riding farm vehicle from starting at the same time as the engine restart operation after the stop operation.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, in the invention according to claim 1, a riding type agricultural work vehicle in which a control unit is arranged on the front part of the airframe,
Stop means for stopping the riding-type agricultural work vehicle;
A stop operation unit connected to the stop means and provided in the control unit;
The riding-type agricultural work vehicle is characterized in that, by operating the stop operation unit, the stop means is operated to stop traveling.

The invention according to claim 2 is the riding type agricultural work vehicle according to the invention according to claim 1, wherein the control unit is disposed on the front part of the fuselage.
A front column provided in the control section;
A stop operation portion provided in the front column;
The riding-type agricultural work vehicle is characterized in that the stop means is operated to stop traveling by operating a stop operation portion provided on the front column.

The invention according to claim 3 is a riding type agricultural work vehicle according to the invention according to claim 1, wherein a steering unit is arranged on the front part of the fuselage,
A front column which is provided in the control section and is rotatable forward;
A stop operation portion provided in the front column;
The riding-type agricultural work vehicle is characterized in that the stop means is operated to stop traveling by operating a stop operation portion provided on the front column.

According to a fourth aspect of the present invention, in the first aspect of the present invention, a riding-type agricultural work vehicle in which a control unit is disposed on the front part of the body,
A front column that is provided in the steering section and can be steered by a riding-type agricultural work vehicle in a state of being rotated forward;
A stop switch for operating the stop means on the front column, provided at a position with good visibility in a state where the operator has descended from the control unit,
By rotating the front column forward, and operating a stop operation unit provided on the front column in a state where an operator gets off the control unit and steers the riding farm work vehicle, The riding means is a riding type agricultural work vehicle characterized in that the stop means is operated to stop traveling.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, a key switch for starting and stopping the engine is provided in the control unit, and the mounting position of the key switch is Is a riding type agricultural work vehicle characterized in that the worker is at a position facing the worker in a state of getting off the control section.

  According to a sixth aspect of the invention, in the first aspect of the invention according to any one of the first to fifth aspects, the forward, reverse, and neutral positions of the main speed change lever are detected after the traveling stop by the operation of the stop means. The engine can be started when the main transmission lever is in the neutral position, and the engine cannot be started when the main transmission lever is in the forward movement position or the reverse movement position.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, the control unit is disposed on the front part of the fuselage, and the control unit is provided with the stop operation unit connected to the stop means. Even when riding a farming vehicle while riding down, it is easy for the operator to reach the stop operation part, and the riding operation can be easily carried out when getting off the driver's seat. The vehicle can be stopped.

  According to the second aspect of the present invention, the control unit is disposed on the front portion of the fuselage, the front column is provided on the control unit, and the stop operation unit connected to the stop means is provided on the front column. Therefore, even when the operator is operating the riding farm vehicle while getting off the driver's seat, the operator's hand can easily reach the stop operation section of the front column. It is possible to stop the riding type agricultural work vehicle by easily performing a stop operation in the state of getting off.

  According to the third aspect of the present invention, the control unit is disposed on the front part of the fuselage, and the front control unit is provided with a front column that is pivotable forward. The front column is connected to the stop means. Even if the front column is rotated forward while the operator is getting out of the driver's seat and the traveling operation of the riding farm work vehicle is performed, The operator's hand can easily reach the stop operation unit, and the ride-type farm work vehicle can be stopped by easily performing the stop operation in a state where the operator gets out of the driver's seat.

  According to the fourth aspect of the present invention, the control unit is disposed on the front portion of the fuselage, and the front control unit is provided with a front column that is freely rotatable. Since the stop switch is provided at a position with good visibility when getting off the control part, the front column is rotated forward while the operator gets off the driver's seat, and the traveling operation of the riding type agricultural work vehicle is performed. Even if it is, the visibility of the stop switch on the front column is good, and the operator's hand can easily reach the operation part. The riding type farm work vehicle can be stopped.

  According to the fifth aspect of the present invention, the key switch for starting and stopping the engine is provided in the control unit, and the key switch is installed in a state where the operator has been lowered from the control unit. Therefore, even if the worker is in the state of getting off the driver's seat, it is easy to reach from the worker, and the restart operation can be easily performed after the stop operation.

  According to the sixth aspect of the present invention, when the main shift lever is in the forward position or the reverse position when the forward, reverse, and neutral positions of the main shift lever are detected after the travel is stopped by the operation of the stop means. Because the engine cannot be started, if the operator performs a restart operation without returning the main shift lever to the neutral position after the stop operation, the engine does not restart, and after the stop operation, the riding farm vehicle is Starting at the same time as the restarting operation can be prevented.

  Next, embodiments of the invention will be described with reference to the drawings.

  The combine 11 as a riding type agricultural work vehicle according to the first embodiment of the present invention will be described with reference to the drawings. 1 is an overall side view of a combine 11 according to a first embodiment of the present invention, FIG. 2 is an overall side view of the combine 11 in a state where the front column 32 is rotated, and FIG. 3 is a front column 32 constituting a control unit 31. 4, FIG. 5, FIG. 6 and FIG. 7 are circuit diagrams of stopping means, FIG. 8 is a circuit diagram of means for detecting the neutral position of the main transmission lever and allowing the engine to be restarted, and FIG. 9. It is a flowchart which shows the means which detects the neutral position of a main speed-change lever, and enables engine restart.

  First, the overall configuration of the combine 11 will be described. As shown in FIG. 1, the combine 11 has a chassis (airframe) 12 disposed on a crawler traveling device 13 that supports left and right crawlers, and an engine 15 is mounted on the front right side of the chassis 12. A transmission case is disposed in front of the chassis 12, and the axle of the drive wheel of the crawler traveling device 13 is suspended from the transmission case. A cutting portion 21 is provided at the front portion of the chassis 12, a sorting portion 23 is provided on the left side of the traveling direction in the upper portion of the chassis 12, and a threshing portion 22 including a handling cylinder and a feed chain is provided on the upper portion. Yes. A top sucker 25 is provided on the upper right side, the straw is stored from the sorting part 23 by the cereal conveyor 24, and a placing part for the straw bag is provided below, and the top sucker is placed on the placed straw bag. Holds 25 bags.

  A front extending portion 14 is formed at the front portion of the chassis 12, and a control portion 31 is formed above the front extending portion 14. The control unit 31 is a part that performs the traveling operation of the combine 11 in a state in which the worker has entered the combine 11 or descended, and the operator performs the traveling operation of the combine 11 in this vicinity. The control unit 31 includes a step 34, a seat base 35 that also serves as an engine room with a seat 36 disposed above, a front column 32, and the like.

  The front column 32 of the steering unit 31 is a portion where steering members such as a steering / cutting unit lifting lever 42 for moving and turning the cutting unit 21 and a main transmission lever 43 for driving are disposed. is there. The upper part of the front column 32 is an operation panel 33 as shown in FIG. The operation panel 33 includes a stop switch 41 as a stop operation portion, a stop lamp 80, a steering / reaping portion raising / lowering lever 42, a main transmission lever 43, and a safety bar 44 that the operator holds to maintain a working posture. A safety confirmation panel 45 for abnormality warning of each part of the machine body, a key switch 46 for starting and stopping the engine 15, and the like are provided.

  As shown in FIG. 2, the front column 32 is pivotally supported in the left-right direction at the lower end portion so as to be rotatable forward. The steering member disposed on the front column 32 such as the steering / reaping part lifting lever 42 or the main transmission lever 43 can be operated even when the front column 32 is rotated forward. By rotating the front column 32 forward, the operation members such as the steering / reaping part raising / lowering lever 42 in the front column 32 are positioned sufficiently low, and work such as crossing over a ridge or loading / unloading a truck onto / from a loading platform. Can be operated from the side or from the front in a state where it is descended from the combine 11.

  The said stop means operates by operating the stop switch 41 as a stop operation part, and stops the combine 11. FIG. As shown in FIG. 3, the stop switch 41 is provided on the operation panel 33 of the front column 32, and is a position where the worker faces the worker while getting off the combine 11. Is provided at a position where it can be easily operated. The stop switch 41 may be attached to the front side surface in addition to the front upper surface of the front column 32. The stop switch 41 is composed of a push switch, and the push portion is larger than the other switches and has a different color so that it can be easily distinguished from the other switches and is conspicuous and is easy to operate. By pressing the stop switch 41, the fuel supply is stopped, the engine 15 is stopped, and the combine 11 (running and working) is stopped. Further, when the stop switch 41 is pressed, the stop lamp 80 is turned on.

  The key switch 46 is for starting and stopping the engine 15. The key switch 46 is provided on the operation panel 33 of the front column 32 at a position where the operator can easily operate. Accordingly, even when the front column 32 is rotated forward and the operator gets out of the driver's seat and steers the combine 11, the front column 32 is easily reachable from the operator and is provided in the front column 32 after the stop operation. By operating the key switch 46, the engine 15 can be easily restarted.

  The key switch 46 will be described in detail. As shown in FIG. 4, the key switch 46 can be switched to three terminal positions of an engine stop terminal 47, an energization terminal 48, and a start terminal 49 by rotating a predetermined key inserted into the keyhole. This is a configured rotary switch.

  When the key switch 46 is turned from the engine stop terminal 47 to the position of the start terminal 49 beyond the energization terminal 48, the starter (not shown) is activated and the engine 15 is started. When the hand is released from the key switch 46, the key switch 46 returns to the position of the energization terminal 48 by the elastic biasing force of a spring (not shown), and the drive of the engine 15 is maintained. When the key switch 46 is turned to the position of the engine stop terminal 47, the drive of the engine 15 is stopped.

  Next, the circuit structure of the stopping means provided in the combine 11 will be described with reference to FIGS.

  The stop means includes a stop circuit 51 connected to the battery 17 and a stop solenoid 52 as an engine stop means provided in association with the fuel injection pump 16 with a governor for adjusting the fuel injection amount to the engine 15. In the stop circuit 51, a stop switch 41 is connected in series.

  A bypass circuit 53 is connected to the stop circuit 51 in parallel with the stop switch 41. In the bypass circuit 53, a work clutch as a work clutch operating means for power disconnection operation to a work part such as the threshing part 22 is provided. A switch 54 is provided. The work clutch switch 54 is provided at the rotation base of the threshing clutch lever and is turned on (connected) at the “ON” position. In the bypass circuit 53, downstream of the work clutch switch 54, as a first switching means for selectively switching the bypass circuit 53 between the cutoff state and the conduction state in conjunction with the on / off operation of the work clutch switch 54. A first relay 55 is provided.

  On the other hand, a second relay 56 as a second switching means is provided between the stop switch 41 and the stop solenoid 52 in the stop circuit 51 on the downstream side of the bypass circuit 53.

  The configuration of the stopping means will be described in more detail. First, the output terminal + of the battery 17 is connected to the input terminal of the key switch 46, and the energizing terminal 48 of this key switch 46 is connected to the B contact 60 (pressed down) in the stop switch 41. It is connected to one end of a contact that is sometimes open (cut off, shut off). The input terminal − of the battery 17 is grounded.

  The stop switch 41 of the present embodiment is a return push switch (also referred to as a momentary switch) for turning on and off the stop solenoid 52 (operation for energization and deenergization). The stop switch 41 includes the above-described B contact 60 positioned on the stop circuit 51 side, an A contact 61 that is in a closed state (on state, conductive state) when pressed, and a movable contact 62.

  The movable contact 62 is brought into contact with the B contact 60 when not pressed by the elastic biasing force of a spring (not shown) and is held in the closed state. In this case, a spring having a relatively small elastic biasing force is employed to improve the sensitivity of the B contact 60 with respect to the pressing operation.

  The other ends of the B contact 60 and the A contact 61 are both connected to one input terminal 71 of the switch unit 69 in the second relay 56. One end of the A contact 61 is connected to one end of the coil unit 70 in the second relay 56 via a stop lamp 80. The other end of the coil unit 70 in the second relay 56 is grounded. An output terminal 72 of the switch unit 69 in the second relay 56 is connected to the stop solenoid 52 at one end. The other end of the stop solenoid 52 is grounded.

  On the other hand, from a branch point 57 to the bypass circuit 53 between the energizing terminal 48 of the key switch 46 and the B contact 60 of the stop switch 41, one end of the A contact 63 in the work clutch switch 54 and the first relay 55 One input terminal 67 of the switch unit 65 is branched and connected.

  The work clutch switch 54 is composed of the A contact 63 and the movable contact 64 described above, and is a lock type that is held in a closed state when pressed once and returns to an open state when pressed again. The other end of the A contact 63 in the work clutch switch 54 is connected to one end of the coil portion 66 in the first relay 55. The other end of the coil portion 66 in the first relay 55 is grounded. The output terminal 68 of the coil portion 66 in the first relay 55 is connected to a connection point 58 between the stop switch 41 and the switch portion 69 of the second relay 56.

  Next, the operation of the stopping means will be described.

  When the combine 11 travels on the road, it is not necessary to transmit power to the working unit such as the threshing unit 22, and the working clutch switch 54 is not depressed and is in an open state (a cut state or a cut-off state).

  In this case, the coil portion 66 of the first relay 55 is demagnetized without the current from the battery 17 flowing in, and the switch portion 65 of the first relay 55 is closed (on state, conductive state). For this reason, when the work clutch switch 54 is in the disengaged state, two paths are secured as the energization path from the battery 17 to the stop solenoid 52, via the stop circuit 51 with the stop switch 41 and via the bypass circuit 53.

  Therefore, as shown in FIG. 4, if the stop switch 41 is not depressed and the movable contact 62 is in contact with the B contact 60 in this state, not only the bypass circuit 53 but also the stop circuit 51 is closed (entered). Therefore, the stop solenoid 52 is excited by energization via the stop circuit 51 or the bypass circuit 53. As a result, the fuel supply by the fuel injection pump 16 with the governor is maintained, and the drive of the engine 15 is maintained.

  Also in this embodiment, the elastic urging force of a spring (not shown) that urges the movable contact 62 in the direction in which it contacts the B contact 60 is set small to improve sensitivity. In addition, the movable contact 62 may float and be separated from both the A and B contacts 61 and 60 even though the stop switch 41 is not depressed due to vibration or the like during traveling on the road.

  In this respect, in this embodiment, as the energization path from the battery 17 to the stop solenoid 52, two paths are secured, through the stop circuit 51 with the stop switch 41 and via the bypass circuit 53. Even if both the A and B contacts 61 and 60 are in the open state (cut-off state, cut-off state), the stop solenoid 52 is excited by energization via the other bypass circuit 53. For this reason, since the fuel supply by the fuel injection pump 16 with the governor can be maintained, there is no possibility that the driving of the engine 15 will stop carelessly when traveling on the road, and the safety during operation is improved.

  As shown in FIG. 6, when the work clutch switch 54 is in a disengaged state, if the stop switch 41 is pressed and the movable contact 62 contacts the A contact 61, the stop circuit 51 (B contact 60 side) is opened. On the other hand, since the energization path toward the coil unit 70 of the second relay 56 is closed, the current via the bypass circuit 53 is stopped via the A contact 61 and the movable contact 62 of the stop switch 41. 80 and the coil portion 70 of the second relay 56, and the coil portion 70 is excited. If it does so, the switch part 69 of the 2nd relay 56 will be in an open state, the electricity supply to the stop solenoid 52 will be interrupted | blocked, and the said stop solenoid 52 will demagnetize. (See FIGS. 4-7).

  That is, the second relay 56 switches between the stop switch 41 and the stop solenoid 52 to the disconnected state only when the work clutch switch 54 and the stop switch 41 are both in the open state (disengaged state, disconnected state), and stops. The solenoid 52 is demagnetized. As a result, the stop lamp 80 is turned on, the fuel supply by the fuel injection pump 16 with the governor is stopped, and the drive of the engine 15 is reliably stopped without turning off the key switch 46.

  When the combine 11 is farmed, it is necessary to transmit power to the working unit such as the threshing unit 22 and the working clutch switch 54 is pressed to be closed (see FIG. 7).

  In this case, the coil portion 66 of the first relay 55 is energized when the current from the battery 17 flows, and the switch portion 65 of the first relay 55 is opened. For this reason, when the work clutch switch 54 is in the on state, the energization path from the battery 17 to the stop solenoid 52 is only the stop circuit 51 on the stop switch 41 side.

  Then, as shown in FIG. 7, in this state, the movable contact 62 is separated from the B contact 60 and the stop circuit 51 is opened as long as the stop switch 41 is lightly touched (struck). For this reason, the energization to the stop solenoid 52 is cut off, the stop solenoid 52 is demagnetized, and the fuel supply by the fuel injection pump 16 with the governor is stopped.

  Therefore, the engine 15 and thus the combine 11 can be stopped quickly and reliably even by at least lightly touching the stop switch 41. If the movable contact 62 contacts the A contact 61, the stop lamp 80 is lit.

  Next, restart of the combine 11 after the engine 15 is stopped as described above will be described. As shown in FIG. 8, the combine 11 according to the present embodiment is provided with means for detecting forward, reverse and neutral positions, for example, a main shift lever switch 81, at the rotation base of the main shift lever 43. When the speed change lever 43 is in the neutral position, the engine 15 can be started. When the main speed change lever 43 is in the forward movement position or the reverse movement position, the safety switch 82 is opened (cut off or shut off) to start the engine 15. It is configured to be disabled. As shown in FIG. 8, the key switch 46 is operated to rotate the cell motor 83 when the main transmission lever 43 is neutral, and the start circuit 84 governor is operated to start. As shown in FIG. 9, when the engine 15 cannot be started, an error is displayed by an indicator lamp, sound, or the like.

  For this reason, when the stop operation of the combine 11 is performed, the main transmission lever 43 is in the forward movement position or the reverse movement position. However, when the restart operation of the engine 15 is performed after the stop operation, the operator holds the main transmission lever 43 in the neutral position. Even if the restart operation is performed in a state where the engine is not returned to the state, the engine 15 does not restart. Therefore, even if the operator mistakenly performs the restart operation after the stop operation while the main transmission lever 43 remains in the forward position or the reverse position, the combine 11 can be prevented from starting simultaneously with the restart operation. it can.

  The present invention described above is not limited to the above-described embodiment. For example, the work clutch operating means is not limited to a switch type, and may be a lever type, and the first and second switching functions are not limited to a relay. A switching element such as a thyristor or a transistor may be employed.

  Further, as a means for stopping the engine 15, in addition to stopping the fuel supply, it is also possible to use means such as releasing the pressure when the prime mover is a diesel engine, and stopping energization of the spark plug when the prime mover is a gasoline engine.

  In this embodiment, the stop switch 41 and the key switch 46 as the stop operation part are provided on the operation panel 33 of the front column 32. However, the stop operation part and the key switch are entered by the operator on the riding type agricultural work vehicle. What is necessary is just to provide in the control part for performing driving | running | working operation in the state of getting off or in the state which got off. It is preferable that the stop operation unit is provided at a position where the stop operation unit is easy to see and operate in either the state of sitting on the seat of the riding type farm work vehicle or the state of getting off the riding type farm work vehicle. For example, the stop operation unit may be provided close to either the left or right side of the control unit.

  The stop operation unit may be provided on the upper front surface or side surface of the front column (or dashboard) 32, the safety bar 44, or each lever, in addition to the operation panel 33. When the front column 32 is provided with a handle portion such as a round shape, it may be provided on the handle portion. The stop operation part is preferably provided so that it is not erroneously operated during a normal traveling operation. When the stop operation part is provided on the operation panel 33, there is little possibility of erroneous operation. Shall.

  Next, the combine 11 as a riding type agricultural work vehicle according to the second embodiment of the present invention will be described. In the second embodiment, the configuration of the stopping means is different from that of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The stop means of the combine 11 according to the second embodiment includes a travel clutch (not shown) and a travel brake (not shown), a work clutch (not shown), and a stop switch 41 that are hydraulically operated. The traveling clutch inputs and disconnects driving force with respect to the axle of the driving wheel, and the traveling brake generates braking force of the combine 11. Each of the travel clutch, the travel brake, and the work clutch includes a hydraulic cylinder, and each hydraulic cylinder is connected to a hydraulic pump by a hydraulic circuit. Each hydraulic cylinder is actuated by hydraulic fluid supplied from a hydraulic pump to actuate the travel clutch, travel brake, and work clutch. However, an electromagnetic clutch may be used instead of the hydraulic pressure.

  When the stop switch 41 is pressed, the stop means energizes a solenoid provided in the hydraulic circuit to operate the valve, so that the hydraulic oil from the hydraulic pump is not supplied to each hydraulic cylinder, and the spring is energized. Thus, the travel clutch is disconnected, the travel brake is operated, and the work implement is stopped. As a result, the transmission of the driving force to the axle of the driving wheel is interrupted, and a braking force is generated, so that the combine 11 can be stopped promptly and the work is also stopped.

  In addition, this invention is not limited to the said embodiment, It can apply widely to riding type agricultural work vehicles, such as a combine and a rice transplanter, You may change as follows.

  Although the combine 11 as a riding-type agricultural work vehicle in which the front column 32 of the control unit can rotate back and forth has been described, a riding-type agricultural work vehicle having a front column that does not rotate may be used.

  The stop operation unit is not limited to the stop switch, and may be any one that can be easily operated by the operator and the stop means operates.

The whole side view of the combine 11 which concerns on Example 1 of this invention. The whole side view of the combine 11 of the state which rotated the front column 32. FIG. FIG. 3 is a plan view of a front column 32 that constitutes a control unit 31. The circuit diagram of a stop means. The circuit diagram of a stop means. The circuit diagram of a stop means. The circuit diagram of a stop means. FIG. 3 is a circuit diagram of a means for detecting the neutral position of the main transmission lever and enabling the engine to be restarted. The flowchart which shows the means which makes the engine restart possible by detecting the neutral position of the main transmission lever.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Combine as riding type farm vehicle 12 Chassis 13 Crawler traveling device 14 Front extension part 15 Engine 31 Control part 32 Front column 33 Operation panel 41 Stop switch as stop operation part 42 Steering / cutting part raising / lowering lever 43 Main shift lever 44 Safety bar 45 Safety confirmation panel 46 Key switch 80 Stop lamp

Claims (6)

A riding-type agricultural work vehicle having a control unit disposed on the front of the aircraft,
Stop means for stopping the riding-type agricultural work vehicle;
A stop operation unit connected to the stop means and provided in the control unit;
The riding-type agricultural work vehicle is characterized in that the stop means operates to stop traveling by operating the stop operation unit. A riding-type agricultural work vehicle having a control unit disposed on the front of the aircraft,
A front column provided in the control section;
A stop operation portion provided in the front column;
The riding type agricultural work vehicle according to claim 1, further comprising: a stop operation unit provided on the front column to operate the stop means to stop the traveling. A riding-type agricultural work vehicle having a control unit disposed on the front of the aircraft,
A front column which is provided in the control section and is rotatable forward;
A stop operation portion provided in the front column;
The riding type agricultural work vehicle according to claim 1, further comprising: a stop operation unit provided on the front column to operate the stop means to stop the traveling. A riding-type agricultural work vehicle having a control unit disposed on the front of the aircraft,
A front column that is provided in the steering section and can be steered by a riding-type agricultural work vehicle in a state of being rotated forward;
On the front column, a stop switch provided at a position with good visibility in a state where an operator has descended from the control unit,
By rotating the front column forward, and operating a stop operation unit provided on the front column in a state where an operator gets off the control unit and steers the riding farm work vehicle, The riding type farm work vehicle according to claim 1, wherein the stop means is operated to stop the traveling.   A key switch for starting and stopping the engine is provided in the control unit, and the mounting position of the key switch is a position where the operator faces the operator when getting off the control unit. The riding type agricultural work vehicle according to any one of claims 1 to 4.   After the travel is stopped by the operation of the stop means, the forward, reverse and neutral positions of the main speed change lever are detected, and when the main speed change lever is in the neutral position, the engine can be started, and the main speed change lever moves to the forward position or reverse position. The riding-type agricultural work vehicle according to any one of claims 1 to 5, wherein the engine cannot be started when in the position.

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