JPH0884510A - Structure for installing inclination setter of traveling vehicle for work - Google Patents

Abstract

PURPOSE: To quickly change the setting of inclination and improve the operability and working accuracy by placing an inclination setter of an inclination controlling means for controlling the inclination of a working part at a specific position. CONSTITUTION: An operation panel 22 longitudinally placed at the right side of a driver's seat is provided with operation tools such as lift-operation lever 12 for the working part, an automatic inclination switch 16 and an inclination setting variable resistor 17. The automatic inclination switch and the inclination setting variable resistor are positioned near the right side of the lift-operation lever operated to the lower limit position (the forward operation end). The positions of the automatic inclination switch and the inclination setting variable resistor can easily be confirmed during the work based on the lift-operation lever shifted to the lower-limit position without turning away the operator's eyes from the working object.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for arranging a tilt setting device in a work vehicle such as a tractor.

[0002]

BACKGROUND OF THE INVENTION Generally,
In this type of work vehicle, an elevating control means for elevating and lowering the working unit based on the operation position of the elevating operation lever,
Some include a tilt control means for controlling the tilt of the working unit based on the set value of the tilt setter. And in this thing, after setting a desired work part inclination with an inclination setter, an elevator operation lever will be operated to a descending position and work will be started. However, in the past, since the tilt setting device was arranged independently of the position of the lifting operation lever, if it is necessary to change the set tilt during work, the position of the tilt setting device should be checked. However, it is not easy to do so, and while the position of the tilt setting device is being confirmed, it is necessary to look away from the original working line of sight (forward line of sight or working line of sight), which causes a problem that work accuracy is reduced.

[0003]

SUMMARY OF THE INVENTION The present invention was devised with the object of providing an arrangement structure for a tilt setting device in a work vehicle capable of eliminating these drawbacks in view of the above circumstances. A work machine comprising: an elevating control means for elevating and lowering a working part based on an operation position of an elevating and lowering operation lever; and an inclination control means for inclining the working part based on a set value of an inclination setter. In a traveling vehicle,
The inclination setting device is arranged near the lower limit position of the lifting operation lever. And the present invention is
With this configuration, it is possible to easily confirm the position of the tilt setting device and improve the operability, and it is not necessary to keep an eye on the line of sight of the work, thereby preventing a decrease in work accuracy.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawing, reference numeral 1 denotes a traveling machine body of a tractor, and a working portion 4 such as a rotary is connected to a rear portion of the traveling machine body 1 via a single upper link 2 and a pair of left and right lower links 3. The working unit 4 moves up and down as the lift arm 6 connected to the lower link 3 via a pair of left and right lift rods 5 vertically swings, and the left and right lift rods 5 expand and contract. Although it tilts to the left and right, all of these basic configurations are the same as conventional ones.

Reference numeral 7 denotes a control device provided in the traveling vehicle body 1. The control device 7 includes an arm angle sensor 8 for detecting the arm angle of the lift arm 6 and a rod length for detecting the rod length of the lift rod 5. A sensor 9, a tillage depth sensor 10 for detecting the tilling depth based on the swing angle of the rear cover 4a, an inclination sensor 11 for detecting the left and right inclination of the working unit 4 or the traveling machine body 1, and a lever angle of a lifting operation lever (position lever) 12. A position sensor 13 for detecting the lever angle, a lever angle detection sensor 15 for detecting the lever angle of the plowing depth setting lever 14,
Automatic tilt switch 1 to turn ON / OFF the automatic tilt control
6, while inputting a signal from the tilt setting volume 17 or the like for setting the target tilt of the automatic tilt control, the solenoids 18 and 19 for raising and lowering the electromagnetic valve for the lift arm,
An operation signal is output to the solenoids 20 and 21 for expanding and contracting the electromagnetic valve for the lift rod. That is, the control device 7 controls the position of the lift arm 6 to automatically move up and down with the working part height set by the lifting operation lever 12 as a target, and lifts the set working depth set by the working depth setting lever 14 as a target. Automatic plowing depth control for automatically raising and lowering the arm 6, tilt setting volume 17
It is configured to execute automatic control such as automatic tilt control for automatically controlling the expansion and contraction of the lift rod 5 with the set tilt set in step 1 as the target.

On the other hand, reference numeral 22 denotes an operation panel which is arranged on the right side of the driver's seat 23 so as to face forward and backward.
A lever guide groove 22a for guiding the main transmission lever 24 is formed at the front end portion of 2, and at the rear position thereof, the above-described lifting operation lever 12, plowing depth setting lever 14, tilt automatic switch 16, tilt setting. An operation tool such as the volume 17 is arranged. Then, of the operation tools, the elevating operation lever 12 having the highest operation frequency is arranged in the left half of the operation panel 22 where the operator's hand can reach naturally so as to be able to operate back and forth, while operating the working depth setting lever 14. Although it is arranged in the right half portion of the panel 22 so as to be able to be operated back and forth, the automatic tilt switch 16 and the tilt setting potentiometer 17 are located near the right side of the elevating operation lever 12 operated to the lower limit position (front operation end). Are arranged as follows. That is, since the lifting operation lever 12 is operated to the lower limit position during the work, the positions of the automatic tilt switch 16 and the tilt setting volume 17 can be easily confirmed by using the lifting operation lever 12 as a guide. ing.

In the embodiment of the present invention constructed as described above, when the work is performed while the automatic tilt control is enabled, the automatic tilt switch 16 is turned ON and the desired tilt of the working portion is set by the tilt setting volume 17. Is set, and thereafter, the raising / lowering operation lever 12 is lowered to start the work. Then, when it is necessary to change the inclination of the working portion during the work, the tilt setting volume 17 is operated again, but the tilt setting volume 17 does not change the tilt setting volume 17 of the elevating operation lever 12 operated to the lower limit position. Since it is arranged in the vicinity, the position of the tilt setting volume 17 can be easily confirmed by using the elevating operation lever 12 as a guide. Therefore, when changing the setting inclination during work, it is not necessary to search the position of the inclination setting volume 17 one by one, and as a result, it is possible to improve the operability in changing the setting. It is also possible to prevent the work accuracy from being lowered by making it unnecessary to separate.

Further, since the elevating operation lever 12 is arranged at the position where it is most easily operated in relation to the operation frequency, the inclination setting volume 17 is arranged in the vicinity thereof so that the basics of the inclination setting volume 17 can be improved. There is an advantage that the operability is improved.

Further, in this embodiment, since the automatic tilt switch 16 is arranged near the lower limit position of the elevating and lowering operation lever 12, even when the automatic tilt control is turned on and off during the work, it is operated to the lower limit position. There is an advantage that the position of the tilt automatic switch 16 can be easily confirmed by using the lifting operation lever 12 as a guide.

[0010]

In summary, since the present invention is constructed as described above, the lifting control means for controlling the lifting and lowering of the working unit based on the operating position of the lifting operation lever and the set value of the tilt setting device. The tilt setting device is provided near the lower limit position of the elevating and lowering operation lever, so that the working unit can be operated near the lower limit position even during the provisional command work. The position of the tilt setting device can be easily confirmed by using the lifted operation lever as a guide. Therefore, it is not permissible to perform a quick setting change operation without checking the position of the tilt setting device, and it is not necessary to keep an eye on the original working line of sight for the position confirmation. It is possible to improve not only the efficiency but also the work accuracy.

[Brief description of drawings]

FIG. 1 is a side view of a tractor.

FIG. 2 is a block circuit diagram showing input / output of a control device.

FIG. 3 is a plan view of an operation panel.

FIG. 4 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling machine 4 Working part 7 Control device 12 Lifting operation lever 17 Inclination setting volume 22 Operation panel

Claims (1)

[Claims] 1. A working machine, comprising: an elevating control means for elevating and lowering a working part based on an operating position of an elevating and lowering lever; and an inclination control means for inclining the working part based on a set value of an inclination setter. In a traveling vehicle, the inclination setting device is disposed near a lower limit position of an elevating operation lever, and a structure for disposing the inclination setting device in a working vehicle.