JPH0531845Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a control operation unit arrangement for an agricultural tractor that allows posture control of the working parts such as position control and plowing depth control from the side of the driver's seat. It is related to the construction structure.

[Prior art and problems to be solved by the invention] Conventionally, this type of agricultural tractor has a position control for controlling the height of a working part provided on the traveling body, a plowing depth control for controlling the plowing depth, and a machine body. Some devices are equipped with operating tools such as levers and dials for horizontal control of the working part, or various switches such as manual switching and sensitivity switching. In this case, it is preferable from an operational point of view that these operating members are arranged centrally on the side of the driver's seat so that they can be adjusted and controlled.

However, in the past, each of the operating members was arranged around the operating lever for position control, so when operating the operating lever, it was difficult to connect to other operating members, and conversely, when operating the operating member, There is a risk of erroneous operation due to touching the operating lever with the user's hand, resulting in significantly poor operability. Moreover, among these operating members, the operation lever for position control has a long operating stroke in the front and back direction, so if it is far from the driver's seat, its operability will be poor.On the other hand, if other operating members are placed near the driver's seat, However, these operating members are hidden behind the feet of the operator sitting in the driver's seat, making them difficult to see and difficult to operate, which has become a problem.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a control operation section arrangement structure for an agricultural tractor that can eliminate these drawbacks. , an agricultural tractor configured to control the attitude of a working part provided on the traveling body by adjusting an operating member that controls position control, plowing depth control, etc., on the outside of the driver's seat of the traveling body; Further, an operation panel portion having at least an upper surface portion and a front portion is provided on the inner side of the rear wheel fender so as to be located approximately at the height of the seat of the driver's seat, and the upper surface portion of the operation panel portion is located on the front side. The front corner of the upper surface of the operation panel is set as the lever mounting part, and the operation lever for position control is installed so that it can be moved from the forward lying position to the rear standing position. The device is characterized in that an arrangement part for arranging an operating member other than the lever is provided at a position that is offset outward in the left-right direction from the operating lever for the action control so as to be longer in the front-rear direction. be.

With this configuration, the present invention arranges various operating members in such a way that they are easy to operate and can eliminate erroneous operations.

[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.

Reference numeral 10 denotes a unitized operation panel section, and the operation panel section 10 is located outside the driver's seat 6 and inside the fender (right side in the embodiment) 4, that is, between the fender 4 and the driver's seat 6. The driver's seat 6 is located at approximately the same height as the seat of the driver's seat 6. That is, this operation panel section 10 includes a panel plate 11 whose front part and upper part are integrally molded, an operation lever 12 for position control, and a control depth for automatic tillage depth control that automatically controls the tillage depth. Operation dial 1 for setting the
3. Horizontal automatic control that automatically controls the left and right posture of the work unit 2 with respect to the machine body, an operation dial 14 that sets the amount of left and right tilt, a changeover switch 15 for manual tilt control, a sensitivity changeover switch 16 that changes the tilt sensitivity, and a tiller. Although the tilling depth switching switch 16a for changing the depth sensitivity is centrally arranged, the front corner portion between the front side of the upper surface and the front portion of the operation panel portion 10 is set as a lever placement portion. The position lever 12 is disposed in the lever arrangement portion by integrally assembling a mounting plate 12a whose base is tightly fixed to the front back surface of the upper surface of the panel board 11, and is disposed in the front side. Arc-shaped lever guide portion 11a with lower sides and higher rear sides
It is possible to swing from the forward, approximately horizontal, lying down position to the upward, approximately vertical, standing position. On the other hand, the rear portion of the upper surface of the panel operating portion 10 is set as a portion where operating members other than the lever are disposed. That is, the panel board 11 is formed with a sloped part 11b that is low in a step-like manner on the rear side of the lever guide part 11a and is sloped so that it becomes lower toward the rear. A horizontal control operation dial 13 is disposed on the lower side, and horizontal control operation dials 14 are disposed at the front and rear. The position and angle of inclination of the inclined portion 11b are set so as to be substantially perpendicular to the line of sight of the operator seated in the driver's seat 6 when facing toward the lower right. Furthermore, a horizontal portion 11c is formed in an extended shape behind the inclined portion 11b, and the aforementioned changeover switches 15, 16, 16a are provided here in the front and rear.
These dials 13, 14 and switches 15, 16, 16a are placed in a state where they are biased toward the outer side in the left-right direction of the aircraft body than the operation range of the position lever 12, that is, in a position farther from the driver's seat 6 in the front-rear direction. It is arranged in such a way that it becomes longer.

17 is a cover body, and the cover body 17 is
It is made of a translucent member so that the inside can be seen, but the rear end is attached to the horizontal part 1 of the panel board.
1c via a hinge 18 so as to be freely openable and closable in the front-rear direction. Furthermore, a plate 19 made of ferromagnetic metal such as iron or nickel is integrally provided at the front end of the cover body 17. When the cover body 17 is closed, the plate 19 is connected to the magnetic body 2 provided on the top of the inclined portion 11b.
The cover body 17 is held in the closed position by being attracted to the cover body 17.
In the closed state, the front upper surface thereof continues from the upper end of the lever guide portion 11a with almost no step.

In the figure, 22 is a control panel arranged in front of the driver's seat 6, 22a and 22b are an automatic tillage depth monitor lamp and an automatic tilt monitor lamp respectively provided on the control panel 22, and 23 is an operation range of the position control lever 12. It is a lever regulator that regulates the

In the embodiment of the present invention configured as described above, the posture control of the working unit 2 by position control, automatic plowing depth control, and automatic tilt control can be performed at will by operating the levers, dials, and switches described above. However, these operations can be performed centrally on the operation panel section 10 located outside the driver's seat 6 and inside the fender 4. That is, the height control of the working part 2 by position control can be performed by operating the position lever 12 arranged in front of the operation panel part 10, and the height of the working part 2 can be controlled by lever operation of the position lever 12 arranged in front of the operation panel part 10. Dial 13, 14, switch 1
By the operations 5, 16, and 16a, the working posture of the working part can be arbitrarily controlled.

In this way, in the present invention, although the operating members for controlling the posture of the working part 2 are centrally arranged in the operating panel part 10, the position lever 12
are arranged in the lever arrangement part formed at the front corner part of the operation panel part 10, and the remaining dials and switches are arranged in the operation member arrangement part formed in the rear part of the upper surface part of the operation panel part 10. The position lever 12 and other dials and switches are arranged in front and rear sections. Moreover, position lever 1
2 is close to the driver's seat 6 side, and the remaining operating members are arranged outward in the left-right direction and elongated in the front-rear direction. For this reason, when operating each of these operating members, the position lever 12, which has a large operating stroke in the front-rear direction and largely protrudes from the panel plate 11, is placed near the driver's seat 6, and is moved forward. Even when folding the machine, the operator can do it extremely easily while sitting in a natural posture without having to lean over. Furthermore, since this lever operation can be performed by a displacement operation between the forward lying position and the rear standing position, the height adjustment operation becomes natural and the operability can be improved.

On the other hand, the other operating member is a position lever 12
Since the position lever 12 is positioned further rearward and outward in the left-right direction, it is possible to effectively prevent the position lever 12 from being in the blind spot of the legs of a seated operator, which would make it difficult to see the operation of the operating members. Moreover, since the position lever 12 is disposed in a long position in the front-rear direction, it is possible to effectively prevent the hand from touching and inadvertently moving one operating member when operating another operating member.
Therefore, not only can the occurrence of operational errors be eliminated, but the operability is also excellent and the attitude of the working unit can be controlled accurately.

Moreover, since the operation panel section 10 is provided at approximately the same height as the seat height of the driver's seat 6, the operation panel section 10 does not get in the way when the operator gets on and off the driver's seat 6. In addition, since the operation panel section 10 is arranged on the inner side of the fender 4, the operation panel section 10 can be effectively protected from pebbles, dirt, etc. that are thrown by the fender 4 during field work. There is also an advantage.

[Operations and Effects] In summary, since the present invention is constructed as described above, the operation panel section is placed outside the driver's seat and inside the fender. The operating lever for this purpose is arranged in a lever arrangement part formed at the front corner part of the operation panel part, and the other operating members are arranged in the operating member arrangement part formed in the rear part of the upper surface part of the operation panel part. The operation lever and other operation members are arranged in a front and rear section, and the operation members other than the operation lever installed on the rear half side are not operated. The lever is arranged so that it is elongated in the front-rear direction at a position that is offset outward in the left-right direction with respect to the lever. As a result, the operating lever for position control, which has a long operating stroke, is located inside near the driver's seat, so it can be operated from a natural working position while sitting without leaning over. Since the height adjustment operation can be performed by a displacement operation between the forward lying posture and the rear standing posture, the height adjustment operation becomes natural and the operability can be improved.

On the other hand, even if the operating members other than the operating lever are located to the side of the driver's seat, they are deviated outward from the operating lever in the left-right direction, so they may enter the blind spot of the feet of the worker sitting in the driver's seat. Not only does it ensure that it does not become difficult to see, but it also prevents problems such as the operating lever getting in the way during operation, or the user touching an unnecessary operating member and accidentally moving an unnecessary operating member. This can significantly improve operability and ensure reliability.

Furthermore, the operation panel section is located at approximately the same height as the seat of the driver's seat, so the operation panel section does not get in the way when the operator gets in and out of the driver's seat. This operation panel is located on the inside of the fender, so
The fender also has the advantage of protecting the operation panel from pebbles, dirt, etc. that fly during field work.

[Brief explanation of the drawing]

The drawings show one embodiment of the control/operation unit arrangement structure for an agricultural tractor according to the present invention, in which FIG. 1 is an overall side view of the agricultural tractor, FIG. 2 is a side view of the driver's seat, and FIG. Figure 3 is the same front view as above, Figure 4
5 is a sectional side view of the operation panel section, FIG. 6 is a sectional front view of the same, and FIG. 7 is a front view of the operation panel. In the figure, 1 is a traveling body, 2 is a working part, 10 is an operation panel part, 11 is a panel board, 11a is a lever guide part, 11b is an inclined part, 12 is a position control lever, and 13 and 14 are dials. .

Claims (1)

[Scope of utility model registration request] In an agricultural tractor configured to control the attitude of a working part provided on a traveling body by adjusting an operating member that controls position control, plowing depth control, etc. An operation panel portion having at least an upper surface portion and a front portion is provided on the inner side of the rear wheel fender so as to be located approximately at the height of the seat of the driver's seat, and the operation panel portion has an upper surface portion on the front side and a front portion thereof. The front corner part of the front part is set as the lever mounting part, and the operation lever for position control is installed so that it can be moved from the forward lying position to the rear standing position. An agricultural tractor characterized in that an arrangement part for arranging an operating member other than the lever is provided at a position that is biased outward in the left-right direction than the control operating lever so as to be longer in the front-rear direction. Arrangement structure of control operation unit in.