JPH0514724Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an assembly structure for a control operation section in a field work machine such as an agricultural tractor or a riding rice transplanter.

[Problems to be solved by the prior art and the invention] In general, in this type of field work machine, the working part provided on the traveling machine body is automatically controlled by a microcomputer, and the other is a mechanical control machine. There are some that are designed to do this. However, in the past, there was no relationship between the microcomputer-controlled control units and the mechanical control units, and for this reason, separate dedicated fenders had to be created to which they were attached. Not only is the processing and management during factory production complicated and troublesome, but it is also difficult to assemble, and furthermore, it has become a problem that it is not possible to make both types have the same feeling in terms of operability. There is.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was created with the aim of providing an assembly structure for a control operation part in a field work machine that can eliminate these drawbacks. In a field working machine comprising a fender configured to cover the side of the driver's seat of the running wheel and the front and upper part of the ground contact part of the running wheel, a corner part of the fender on the driver's seat side is provided with a A step-like groove is formed to protrude toward the top surface of the fender to cover the groove.
A work equipment position control lever with a lever position detection sensor, a computer control cover body equipped with a microcomputer control operation part such as an automatic changeover switch, or a lever for a machine control operation lever such as a work equipment position control lever. It is characterized by having a machine control cover body provided with a guide.

With this configuration, the present invention enables the fender to be used as both a microcomputer control operation section and a machine control operation section.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a running body of an agricultural tractor, and a rotary tilling section 2 is provided at the rear of the running body 1 so as to be movable up and down via a link mechanism 3. Reference numeral 4 denotes a fender of the traveling body 1. In the embodiment, the left and right fenders 4, including the step portion 5, are integrally molded, but a driver's seat 6 is located in the center between the left and right fenders 4. It is provided. Here, 7 is a driving handle, 8 is a rear wheel covered by the fender 4, and 9 is a front wheel.

The fender 4 is configured to cover the rear wheel 9 from the side of the driver's seat and from the front upward.
A stepped groove 10 is formed in the driver's seat corner of the fender 4 and projects toward the rear wheel. It is assembled. That is, the groove part 10 is covered by the standing wall of the fender 4 at the rear and on the outer side in the left and right direction, and has a stepped bottom with two upper and lower steps, and is open in the front, upper part, and inner side in the left and right direction. It has become a state of being. And one side (right side in the example)
A control portion 11 is integrally fixed to the upper bottom surface of the groove portion 10 by a tightening member 11a.

Further, 12 and 13 are the left and right concave groove portions 10, respectively.
Of these, the right cover body 13 has a tilt manual changeover switch 14, which is located above the control section 11.
A slope setting device 15, a plowing depth setting device 16, an automatic slope switch 17 consisting of a push button type switch, and an automatic plowing depth switch 18 are provided, respectively. Furthermore, a lever 19 for position control is provided on the front side of these instruments, and the base end of the position control lever 19 is connected to a position sensor 20 that detects the lever position of the position control lever 19. A lever 19 is integrally attached to the lower surface side of the cover body 13 and protrudes upward from the lever guide 19a.
can swing back and forth within a range regulated by upper and lower stoppers 19b. and,
In this way, the cover body 13 includes the position control lever 19 and the switches 14 to
18 are integrally attached as one kit, and in this way, the recessed groove portion 10 is provided with a control operation section that is controlled using a microcomputer.

Next, the slope changeover switch 14, the slope setting device 15, the plowing depth setting device 16, and the automatic slope switch 1
7. The operations of the automatic plowing depth switch 18 and the position control lever 19 will be briefly explained using a flowchart. First, when the engine is started, the set lamp provided on the control panel 20 will display the display on the monitor 31. If the set lamp lights up at this time, it means that the position control lever 19 is not in the appropriate set position. ,
Therefore, the position control lever 19 is operated to slowly position the set lamp at an appropriate position so that it turns off. In this way, position control is performed in a state where the camera is positioned at the set position, and when the position control lever 19 is further operated up and down to set the desired position, this set position is detected. The set value from the position sensor 20 and the detection result from the lift arm angle sensor 22 provided on the hydraulic lift arm 21 are transmitted to the control unit 1.
1, and if they do not match, control the control valve (not shown) to vertically swing the hydraulic lift arm 21 and adjust the position so that the working part 2 is at the set position. ,
In this way, the position of the working part is automatically controlled. If you want to manually move the work unit up and down, switch the lift arm manual switch 23 provided on the control panel 20 to the manual side to cancel the position control and move the work unit up and down manually. I'm starting to be able to move. On the other hand, if you want to use automatic tillage depth control,
By operating the position control lever 19 to the lower position and pressing the automatic tilling depth switch 18 (displayed on the monitor and position control automatically released), the tilling depth set with the tilling depth setting device 16 is set. The set value is compared with the detected value from the plowing depth sensor 25, which detects the plowing depth by detecting the rocking posture of the rear cover 24 of the working section 2, and the control valve is set in the control section so that the values match. 11, the lift arm 21 moves up and down, thereby achieving automatic plowing depth control. moreover,
If you want to perform automatic slope control, such as when cultivating sloped land, press the automatic slope switch 17 (displayed on the monitor) and operate the slope changeover switch 14 and slope setting device 15 to set the desired slope. When the set value is set to the state, this set value is compared with a value detected by a tilt detection sensor (not shown), and control is performed by the control unit 11 so that these values match, thereby achieving automatic tilt control. In this manner, the posture of the working unit 2 is controlled. In addition, 26 is a grip (handrail) provided on the fender 4, and 32
is the main gear shift lever.

On the other hand, FIGS. 11 to 14 show a mechanical control means in which a control operation part is provided in the recessed groove part 10. That is, unlike the above-mentioned microcomputer-controlled one, this one requires two levers, a position control lever 27 and a plowing depth setting lever 28.
A cover body 29 provided with lever guides 7 and 28 is used, and the cover body 29 is fixed with screws like the cover body 13 described above.
Both levers 27 and 28 are interlocked and connected to a mechanical control unit 30 disposed below the driver's seat 6, and when the position control lever 27 is operated, the control valve is switched and the hydraulic lift arm 21 is moved up and down. By swinging, position control is achieved according to the lever position, and when the plowing depth setting lever 28 is operated, control valve control is also performed in the same way, and the work is completed with the tillage depth commensurate with the lever position. In this way, the operating sections for microcomputer control and mechanical control can be selectively installed.

In the embodiment of the present invention configured as described above, when assembling the traveling aircraft, the same fender 4 is used regardless of whether the control operation section of the working section is used for microcomputer control or mechanical control. be able to. That is, in the present invention, when a microcomputer control is desired, a control part 11 is provided in the concave groove part 10 of the fender 4, and a cover is provided with a lever 19 and switches 14 to 18 for control operation as a kit. The body 13 can be attached, and if it is desired to be used for machine control, a cover body 29 can be attached, in which a position control lever 27 and a plowing depth setting lever 28 are provided. Therefore, the same fender 4 can be used as it is, and any style can be selected and assembled freely, allowing the fender 4 to be used for multiple purposes, and eliminating the need to create separate dedicated fenders for each fender as in the past. This greatly simplifies the processing and management of the Fender 4 at the Motsutsu factory, resulting in cost reductions. Furthermore, regardless of whether it is microcomputer-controlled or mechanically controlled, the operating section will be located in the same location, so no matter which one you operate, you can operate it with the same feeling, even if the model changes. There is no confusion for workers even when
As a result, operability can be significantly improved.

[Operations and Effects] In summary, the present invention is constructed as described above, so if you want to control the working part by a microcomputer or by a machine, you can install a computer control device in the concave groove provided in the fender. It is possible to select and assemble either a cover body for machine control or a cover body for machine control. Therefore, there is no need for dedicated fenders for each type as in the past, and only one type of fender is prepared. Not only can any cover body be attached, the fender can be used interchangeably, processing and management are easy, and costs can be significantly reduced, but the cover body mounting position can be shared, making it possible to change the model. There is no sense of discomfort when changing it, and the operability can be significantly improved.

[Brief explanation of the drawing]

The drawings show one embodiment of the assembly structure of the control operation part in the field working machine according to the present invention, in which FIG. 1 is an overall side view of the agricultural tractor, FIG. 2 is an overall plan view of the same, and FIG. Figure 3 is a rear view of the main parts when microcomputer control is used, Figure 4 is a side sectional view of the main parts of the same as above, Figure 5 is an enlarged sectional view of the main parts of the fender, Figure 6 is a vertical cross-sectional view of the same as above, and Figure 7 Figure 8 is a perspective rear view of the driver's seat section, Figure 8 is a side view of the working section, and Figure 9 is a perspective rear view of the driver's seat section.
The figure is a plan view of the main parts of the same as above, Fig. 10 is a flowchart, Fig. 11 is a perspective view of the main parts of the agricultural tractor seen from the back side when mechanical control is used, and Fig. 12 is a perspective view of the main parts of the same as seen from the side of the above. FIG. 13 is a cross-sectional side view of the main part of the same, and FIG. 14 is a cross-sectional rear view of the main part of the same. In the figure, 1 is a traveling machine body, 2 is a working part, 11 is a control part, 13 is a cover body for microcomputer control, 19 is a position control lever for microcomputer control, and 27 and 28 are levers for machine control. , 29 are the same cover bodies.

Claims (1)

[Scope of utility model registration request] In a field working machine comprising a fender configured to cover the side of the driver's seat of the running wheel and the front and upper part of the ground contact part of the running wheel, a corner part of the fender on the driver's seat side protrudes toward the running wheel. A step-shaped recessed groove is formed, and an operating section for microcomputer control, such as a work equipment position control lever with a lever position detection sensor and an automatic changeover switch, is assembled on the upper surface of the fender to cover the recessed groove. Assembling a control operation part in a field work machine, characterized in that a machine control cover body is attached with a computer control cover body or a machine control cover body provided with a lever guide for a machine control operation lever such as a work machine position control lever. structure.