JPH0576229U - Travel control device for work vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] Even if there are piles or ridges of straw debris in the field, the operator can move the machine while the operator is in the field without hooking a divider or the like. [Structure] By operating the travel operation switch 16, the machine body 2 is traveled and the mowing section 3 is raised to a predetermined height, and by stopping the operation of the travel operation switch 16, the travel is stopped and the mowing section 3 is moved to the original height. To lower.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a traveling control device for a working vehicle such as a combine, and more specifically, a traveling control device that allows the operator to lift and lower a working unit such as a mowing unit at the same time as operating the machine while the operator is away from the driver's seat. Regarding the control device.

[0002]

[Prior Art]

 Conventionally, a working vehicle such as a combine harvests grain culms planted in a field by operating a cutting blade and traveling while appropriately raising and lowering a pretreatment section. Even after the mowing work was completed, the culms of the pillows that had been mowed remained unthreated in the headland of the field, and the parts that had been mowed with the combine also fell or felled. There were cases where grain culms were left behind little by little due to being removed from the plant. Then, in order to process these unthreshed grain culms and uncut grain culms, the operator left the combine harvester running while driving the automatic threshing device, left the operator's seat, and left in the field. The harvested culms were collected and manually put into the opening of the threshing device with a feed chain for threshing work.

Further, in a conventional combine harvester, when threshing the culms collected from the field while stopped at the same place, the straw produced by the work is discharged to the same place by the cutter or knotter. If the work is continued as it is, the straw may become hot, resulting in a problem of clogging the straw outlet of these cutters or knotters. In addition, carrying the grain culms in the distant headland to the combine requires too much labor for the operator and reduces efficiency, so the operator occasionally interrupts manual handling work, and It is necessary to remove the straw accumulated under the knotter or return to the driver's seat to move the aircraft to another place to continue the manual handling work, especially when there is one operator or a small number of operators. However, the manual work and the operation had to be repeated, which caused heavy labor and increased the burden on the operator.

Further, by operating the operating means provided on the machine body from the outside of the machine body, the combiner is moved forward or backward at a preset speed, and the combiner of the machine body is kept in the field without returning to the driver's seat. A travel control device that can be moved has also been devised.

[0005]

[Problems to be solved by the device]

 However, in the conventional travel control device described above, when the aircraft is moved forward or backward with the reaping part being lowered during the manual handling work, the divider of the reaping part may drag the straw or mud. There is. In that case, there was a problem that the operator had to return to the driver's seat, raise the mowing unit, move the machine to the next position, and repeat the operation of raising and lowering the mowing unit again.

Therefore, the present invention solves the above-mentioned problems by allowing the operator to simultaneously perform the traveling operation of the machine body and the raising / lowering operation of the reaper while staying in the field without returning to the driver's seat each time. It is an object of the present invention to provide a travel control device for a working vehicle that has been solved.

[0007]

[Means for Solving the Problems]

 The present invention has been made in view of the above circumstances, and is designed to travel the machine body (2) by a traveling device and to support the working unit (3) on the machine body (2) so as to be able to move up and down. In the working vehicle (1) which is vertically moved by (27), the traveling operation means (16) is installed at a position different from the driver's seat (7) of the machine body (2), and the traveling operation means (16) is installed. ), The traveling device is operated to travel the airframe (2) and the actuator (27) is operated to raise the working part (3) to a predetermined height, and the traveling operation means is operated. Based on the operation stop of (16), an automatic operation means (41) for stopping the traveling device and operating the actuator (27) in the descending direction to return the working part (3) to the original height is provided. It is characterized by

[0008]

Based on the above configuration, the operator raises the working unit (3) to a predetermined height by operating the traveling operation means (16) while the operator is away from the driver's seat (7) in the field. When the machine body travels in this state and the traveling of the machine body (2) is stopped by the traveling operation means, the working unit (3) is lowered to the original height.

[0009]

[Effect of the device]

 As described above, according to the present invention, the traveling operation means (16) causes the machine body (2) to travel and the working unit (3) to rise to a predetermined height, and the traveling operation means (16). By equipping the automatic operation means (41) for stopping the machine body (2) and returning the working part (3) to the original height by stopping the operation of the machine, even if there are piles or ridges of straw waste in the field, The operator can move the machine body (2) without having to return to the driver's seat (7) one by one, without having to hook the divider (5) or the like on the straw waste, etc., while carrying out manual handling work in the field.

The reference numerals in parentheses refer to the drawings and do not limit the configuration in any way.

[0011]

【Example】

 Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

As shown in FIG. 1, the combine 1 has a machine body 2 supported by crawlers, and in front of the machine body 2, a mowing section 3 for performing pretreatment such as mowing is supported so as to be vertically movable. Has been done. A plurality of dividers 5 are provided on the front surface of the reaping unit 3 to maintain the posture of the crop before performing the reaping work. Narrow guides 6 are attached to the left and right sides of the reaping unit 3. ing. Further, an operation console 9 is provided in front of the driver's seat 7 provided on the machine body 2, and the operation console 9 has a mowing section operating lever 10 for operating the raising and lowering of the mowing section 3 and the combine 1. A continuously variable transmission lever 11 for performing the gear shifting operation is provided, and an auxiliary transmission lever 12 and a thresher clutch lever 13 are provided on the side of the driver's seat 7, respectively. On the other hand, on the side surface of the automatic threshing machine 14 provided in the machine body 2, the engine stop switch 15 and the traveling mode when the operator controls the vehicle by sitting on the side of the combine 1 without sitting in the driver's seat 7 Each of the traveling operation switches 16 constituting the operation means is provided.

As shown in FIG. 2, the control unit 17 mounted on the combine 1 is provided with an automatic operation means 41, and the engine stop switch 15 and the forward traveling operation switch are provided on the input side. 16a, a reverse traveling operation switch 16b, a mowing section raising switch 19a and a mowing section lowering switch 19b, a right side clutch switch 20a, a left side clutch switch 20b, a forward switch 21a and a reverse switch 21b, an operation angle of the continuously variable transmission lever 11 Lever potentiometers 22 for detecting (F-N-R) are connected to each other, and a potentiometer 25 for continuously variable transmission that detects a pulley width of a continuously variable pulley 23a constituting a continuously variable transmission device 23, The actuator (hydraulic cylinder for raising and lowering the reaper) 27 A mowing section elevating potentiometer 29 for detecting the elevating position of the freely descending mowing section 3 and a threshing clutch switch 30 are connected.

On the output side of the control unit 17, there are provided an engine stop cut solenoid 31, a mowing section raising solenoid 32a and a mowing section lowering solenoid 32b, a right side clutch solenoid 33a and a left side clutch solenoid 33b, respectively. Further, a forward solenoid 35a, a reverse solenoid 35b, a speed-up solenoid 36a, and a deceleration solenoid 36b are connected to each other.

Then, the automatic operation means 41 built in the control unit 17 is operated by the traveling operation switches 16a and 16b, and the reaper section raising / lowering solenoids 32a and 32b and the forward / backward moving solenoids 35a and 35b are appropriately operated. Operate. That is, when the forward traveling operation switch 16a is turned on, the reaper section raising solenoid 32a is excited to raise the reaper section 3 by a predetermined amount, and the forward solenoid 35a is excited to move the machine body 2 forward at a predetermined speed. When the forward traveling operation switch 16a is turned off, the cutting section lowering solenoid 32b is excited to lower the cutting section 3 to the original height, and at the same time, the forward solenoid 35a is turned off to stop the traveling of the machine body 2. Similarly, when the reverse drive operation switch 16b is turned on, the reaping section raising solenoid 32a is excited to raise the reaping section 3 by a predetermined amount, and the reverse traveling solenoid 35b is excited to move the machine 2 at a predetermined speed. When the vehicle travels in reverse and the reverse travel operation switch 16b is turned off, the harvesting section lowering solenoid 32b is excited to lower the harvesting section 3 to its original height, and the reverseing solenoid 35b is turned off to cause the machine body 2 to travel. Stop.

The present embodiment is configured as described above, and as shown in FIG. 3, when performing a manual traveling work by the combine 1, the threshing clutch lever 13 is operated to operate the threshing clutch. Only when the switch 30 is in the ON state, the hand-operated traveling control can be performed (S6). Therefore, the operator operates the threshing clutch lever 13 provided on the side of the driver's seat 7 to perform the threshing clutch switch 30. Is turned on (S1). Next, the operator leaves the driver's seat 7 and operates the forward traveling operation switch 16a provided on the side surface of the machine body 2 to turn it on (S2). The part 3 is raised (S3), (S4), (S5). At this time, the continuously variable transmission lever 11 provided on the operation console 9 is in the neutral position N (see FIG. 2), and the combine 1 travels at the low speed V ₁ . Then, the mowing unit 3 rises to a predetermined height and stops (S5), and after moving the combine 1 forward to the next working position, the operator operates the forward traveling operation switch 16a to turn it off. Then, (S7), the automatic operating means 41 detects the signal, the hydraulic cylinder 27 for raising and lowering the mowing section 3 is activated, and the mowing section 3 begins to descend to the original height (S8), (S9) and the combine 1 The forward traveling is also stopped (S10), and the mowing unit 3 descends to almost the original height position (S11), (S12), (S13).

Although the operation of the forward traveling operation switch 16a has been described, the operation of the backward traveling operation switch 16b can be similarly performed.

[Brief description of drawings]

FIG. 1 is a plan view showing a combine to which the present invention is applied.

FIG. 2 is a block diagram showing an embodiment of the present invention.

FIG. 3 is a flowchart showing a hand-traveling control operation of the embodiment of the present invention shown in FIG.

[Explanation of symbols]

 2 Aircraft 3 Working part (cutting part) 7 Driver's seat 16 Traveling operation means (running operation switch) 27 Actuator (hydraulic cylinder for raising and lowering the cutting part) 41 Automatic operating means

Claims (1)

[Scope of utility model registration request] 1. A working vehicle in which a machine is traveled by a traveling device, and a working unit is supported by the machine to be lifted and lowered by an actuator, and a traveling operation is performed at a position different from a driver's seat of the machine. Means is installed, and based on the operation of the travel operation means, the travel device is operated to travel the machine body and the actuator is operated to raise the working unit to a predetermined height, and the travel operation means A travel control device for a working vehicle, comprising: an automatic operation means for stopping the traveling device based on an operation stop and operating the actuator in a descending direction to return the working unit to an original height. .