JP2724417B2 - Side panels in agricultural tractors - Google Patents

Description

The present invention relates to a side panel for an agricultural tractor.

[Problems to be Solved by the Related Art and the Invention] Generally, some agricultural tractors are provided with an operating tool for controlling a working unit attitude on a side panel disposed on a laterally outward side of a driver's seat. is there. As such a posture operating tool, there is a control lever (position lever) for setting the working section height to a required height and setting the working state such as automatic plowing depth control.
In addition to this control lever, it has been attempted to provide, as one of the operating tools, a control switch that can raise and lower the work unit prior to this automatic control, for example, in a state where the control lever is set to the automatic work position. ing.

However, conventionally, when the control switch is provided on the side panel, when the control switch is centrally disposed together with the control lever, the distinction between them is not obvious and causes an erroneous operation. Therefore, it is proposed to dispose the control switch at the rear part of the side panel separated from the control lever.However, in an agricultural tractor, it is common practice to dispose an operation tool for elevation control on the front side of the side panel. As a result of customization,
There is a problem that it is hard to be familiar with the fact that there is a switch for controlling the working unit at the rear, which gives a sense of incongruity and poor operability.

[Means for Solving the Problems] In view of the circumstances described above, the present invention has been created with the object of providing a side panel for an agricultural tractor capable of eliminating these disadvantages,
In a farm tractor in which a control lever and a control switch for controlling the lifting and lowering of a working unit are attached to a side panel disposed outside a driver's seat, a lateral rib is provided at an intermediate portion of the side panel in the front-rear direction. The front surface is formed with an inclined surface which becomes lower toward the front side, and the control switch is disposed below the inclined surface such that the switch operation unit is opposed to the inclined surface, and the upper surface passes through the lateral rib from outside the inclined surface. Subsequently, front and rear ribs extending to the front end of the panel are provided, and a lever guide is provided in front of the control switch and inside the front of the front rib so as to be higher than the lower part of the inclined surface. The lever is provided such that the lever operation portion protrudes higher than the front and rear ribs.

According to the present invention, the erroneous operation of the operating tool for lifting control is eliminated by this configuration.

Example Next, an example of the present invention will be described with reference to the drawings.
In the drawings, 1 is a traveling body of an agricultural tractor,
A side panel 6 in which the present invention is implemented is assembled as a panel assembly 4 together with a lever guide 5 on a fender 3 provided on one side (in the embodiment, on the right side) of a driver's seat 2 of the traveling body 1. I have. In other words, the fender 3 is curved in an arc shape forward and downward from the horizontal upper surface portion 3a, and the lower portion is vertical, so that the rear wheel is covered. The panel mounting portion 3b is formed here.

On the other hand, a lever guide 5a, which is substantially H-shaped, of a power take-out shift lever 7 is opened at the front of the lever guide 5 constituting the panel assembly 4, and a rear part for attaching the side panel 6 is provided at the rear. An opening 5b is opened. The upper surface of the side panel 6 is formed with a lateral rib 6a protruding in the left-right direction at a substantially central portion in the front-rear direction, and is divided into front and rear portions. The rear half of the horizontal rib 6a is stepwise lowered to form a setting device mounting portion 6b for mounting setting devices such as various switching switches and setting devices. In other words, in the first half of the setting device mounting portion 6b, the tillage depth setting device 7 for setting the tillage depth is on the left side, and the automatic control state is turned off (OFF), incline automatic, tillage automatic, tillage depth and incline. Automatic control switching switches 8 for switching to an automatic state are arranged on the right side, respectively. A mode switching switch 9 for switching the control mode to a rotary working machine mode, a harrow working machine mode, another working machine mode, and a check mode is provided on the left side in the center of the setting device mounting portion 6b in the front-rear direction. A tilt setting device 10 for setting the left-right tilting state of the machine is located at the center, and an up-regulation setting device 11 for controlling the work machine ascent position.
Are arranged on the right side, respectively.

On the other hand, in the latter half of the setting device mounting portion 6b, switches 12 and 13 for switching the cultivation depth sensitivity and inclination sensitivity, a depth switching switch 14 for manual cultivation depth, and a vertical switch 15 for manual lifting arm are provided from the left side, respectively. Has been established. Then, a cover for covering these setting devices is attached to the setting device attachment portion 6b, but in this case, in the central portion and the rear portion, the setting devices with less adjustment frequency are centrally arranged,
The setting devices are covered with a first cover 16. The first cover 16 has a substantially shino shape,
The locking claws 16a formed on the front and rear legs are detachably fitted and locked in the locking claw holes 6c formed in the side panel 6, thereby being attached.

17 is a second cover, and the second cover 17 is
Along with the first cover 16, it covers the setting devices which are frequently arranged in the front half and which are frequently adjusted. One side edge of the outer side (left side) can be freely opened and closed by the support shaft 17 a on the side panel 6. A locking claw 17b formed on one inner side edge is removably fitted and locked in a locking claw hole 6d formed in the side panel 6 so that the locking claw 17b can be attached and opened. As shown in FIG. 3, the second cover 17 is configured to substantially follow the upper surface of the lateral rib 6a rearward in the closed state.

By the way, in the embodiment, the first cover 16 is colored so as to be almost invisible and is restricted from seeing the inside, but the second cover 17 is in a state where it can be seen through and the inside is good. And the first cover 16 and the second cover 17
When the is closed, it is configured so that only the setting devices with high adjustment frequency concentrated in the first half can be viewed, minimizing the types of setting devices that can be viewed with the cover. The complexity has been eliminated.

It is needless to say that both the first and second covers 16 and 17 cannot be seen through, or vice versa. The colors of the covers 16 and 17 can be changed so that the type of cover can be made conscious.

On the other hand, in the front half of the side ribs 6a of the side panel 6, front and rear ribs 6e protruding in the front-rear direction so that the outside (left side) continues forward from the side ribs 6a are formed almost to the front edge of the panel. However, an inclined surface 6f is formed on the inner side (right side) of the front and rear ribs 6e and becomes gradually lower from the front end edge of the horizontal rib 6a toward the front side. The front surface of the inclined surface 6f passes through a horizontal plane 6g from the front end of the inclined surface 6f. The lever guide 6h is formed in an arcuate mountain shape.
In addition, the operating part (grip) for operating the lever has a horizontal rib 6a.
A raising / lowering control lever (position lever) 18 projecting higher and higher is provided to penetrate. The base end of the elevation control lever 18 is supported by a detector 19 for detecting the lever angle. The detector 19 is integrally attached to the bottom surface of the side panel 6 via a bolt 19a.

Reference numeral 20 denotes an elevating control switch. The elevating control switch 20 raises and lowers the working mechanism (for example, body rotation) in preference to the automatic plowing depth control when the switch is operated in the automatic plowing depth control mode. (For ascending for a line, descending for resuming work, ascending or descending to a desired height from the necessity of work, etc.). As shown in FIG. 3, an operation portion (knob) for performing a switch operation is provided on an inclined surface 6.
Is attached to the lower surface of the inclined surface 6f so as to be exposed without being covered with a cover.
That is, the lifting control switch 20 is configured such that a bidirectional automatic return switch that automatically returns to the neutral (OFF) position is used in the embodiment, and a switch operation that tilts in the front-rear direction can be performed. When the switch is operated downward, a lowering command of the work machine is output, and when the switch is operated rearward and upward, a lift command of the work machine is output.However, the elevation control switch 20 is in the neutral position. The upper end of the operation knob 20a is set to be substantially the same as or slightly lower than the upper edge position of the front and rear ribs 6e, the outer side is the front and rear ribs 6e, the rear is the horizontal ribs 6a, and the front is It is arranged so as not to protrude upward while being surrounded and bent by the lever guide 6h.

Reference numeral 21 denotes a board for assembling the control unit constituted by using a microcomputer.
The control box 22 is integrally mounted on the bottom of the control box. That is, the control box 22 has an opening at the upper surface of a portion corresponding to the setting device mounting portion 6b and the elevation control switch 20, and a lower edge portion of the bottom cylindrical portion 6i projecting from the bottom surface of the side panel 6 in a cylindrical shape. The control box is wired so that the lead wire 25 is drawn into the box from the setting device and the elevation control switch 20.
The brackets 22a and 22b projecting from the front and rear side plates of the bracket 22 are attached to the side panel 6 by bolts.
The bottom cover 23 is configured to be integrally attached by screws. The bottom plate 23 is configured such that the substrate 21 is integrally mounted on the upper surface, and a substrate 24 having a connector 24a mounted between locking portions 23a and 22d formed on the bottom plate 23 and the control box 22 is fastened. It has become. The front plate of the control box 22 is formed with a cutout groove 22c for drawing out the lead wire 25.

In the embodiment of the present invention configured as described above, the control mode is set to the rotary work machine mode, and the automatic control switching switch 8 is set to the automatic cultivation depth (or the automatic cultivation depth and inclination).
When the elevating control lever 18 is set to the automatic position (the lowest position) in the state where it is set to the position, the work in the automatic plowing depth control state is performed. If the elevator control switch 20 is operated to the ascending side when the vehicle rotates, the controller is elevated without operating the elevating control lever 18 to the ascending position each time.

As described above, by operating the lift control switch 20 that is exposed without being covered with the cover, the work machine is moved up and down in preference to the lever position of the lift control lever 18, but this lift control switch 20 is The inner side of the front and rear ribs 6e forming the outer frame of the side panel 6 is disposed on the inclined surface formed so as to be lower toward the front from the lateral ribs 6a, and is disposed at 6f. The working part is raised by the switch moving operation, and the working part is lowered by the switch pushing down device inclining downward.As a result, the lifting control switch 20 is provided so as to protrude on the conventional horizontal plate and The switch operation does not become confusing as in the case of the switch operation in the horizontal direction that is not related to the lifting operation, and the switch operation is performed with the natural operation feeling as if it corresponds to the lifting direction of the work equipment. The lifting and lowering control switch 20 is located in a recess that is surrounded on both sides by ribs 6a and 6e on the rear and outer sides and by a lever guide 6h on the front side. In addition, the switch operation part is disposed at a low position facing the inclined surface 6f, and the protrusion from the upper surface of the ribs 6a, 6e is suppressed to a low level, while the elevation control lever 18 disposed in front of the switch The operation unit protrudes higher than the upper surface of the front and rear ribs 6e continuing from the horizontal rib unit 6a, so that the two are clearly distinguished.As a result, the lifting control switch 20 is arranged close to the rear of the lifting control lever 18, The lifting and lowering control tools follow the conventional arrangement of the front side of the side panel and are easy to adjust to, but they can be easily identified by hand placed on the upper surface of the ribs 6a and 6e. What you can do And erroneous operation can be prevented.

In addition, the operator can operate the lifting control switch 20 by placing his hand over a wide range from the side ribs 6a to the second cover 17 that follows the rear without any discomfort from the horizontal rib 6a. Even if there is a difference in the size of the hands of the user, the cover does not touch the various setting devices arranged in the setting device mounting part 6b because it is covered, and the lift control switch 20 in a stable state Can be operated and operability is improved.

In this connection, as the panel assembly 4, a side panel 6 and a lever guide 5 are used as a single unit. The setting unit and the control box are incorporated into the side panel 6. This is a side panel assembly, which is incorporated into the lever guide 5 to constitute the panel assembly 4. Therefore, for maintenance or the like, the side panel assembly is mounted while the lever guide 5 is attached to the fender 3. It has the convenience of being able to remove only.

When assembling a traveling body that does not perform automatic control using a microcomputer as described above, a dedicated lever guide 26 prepared in advance as shown in FIG. ), And if the lever arm is passed through the panel mounting portion 3b, in assembling the traveling body, the fender 3 remains the same, and it is possible to select whether to incorporate the above-mentioned panel assembly 4 or the lever guide 26. Therefore, there is an advantage that any one of them can be dealt with, which is convenient because one kind of correspondence can be made for high-mix low-volume production.

[Function and Effect] In short, since the present invention is configured as described above, the control lever and the control switch, which are operating tools for controlling the lifting and lowering of the working unit, are located at the middle part in the front-rear direction of the side panel. By being arranged in front of and behind the horizontal ribs, these operating tools can be centrally arranged in the front half of the panel, so that they are routine and comfortable to use as operating tools that require elevating, making them easy to use. .

In addition, the control switch is disposed in a concave portion formed by a lateral rib portion on the rear side, by a lever guide on the front side, and on the outer side by the front and rear ribs, and the switch operation portion is arranged in a low position opposed to the inclined surface. While the protrusion from the panel upper end surface is suppressed, it is low, while the control lever located in front of it is clear because the lever operation part protrudes higher than the front and rear rib upper surface following the horizontal rib. As a result, the control switches and levers are located in front of the horizontal ribs, but can be easily identified with the hand placed on the upper surface of the ribs, thereby preventing erroneous operation. I can do it.

[Brief description of the drawings]

The drawings show an embodiment of the side panel in the agricultural tractor according to the present invention, wherein FIG. 1 is a plan view of the agricultural tractor, FIG. 2 is a plan view of the panel assemblage, and FIG. FIG. 4 is a perspective view of a panel at sea part, FIG. 5 is an inner side view of a ender, FIG. 6 is a plan view of the ender, FIG. 7 is a front view of the ender,
8 is a plan view of the lever guide, FIG. 9 is a side view of the lever guide, FIG. 10 is a plan view of the side panel, FIG. 11 is an inner side view of the side panel, and FIG. 12 is a front view of the side panel. , FIG. 13 is an outer side view of the side panel, FIG. 14 is a cross-sectional view of a lever guide portion of the side panel, FIG. 15 is a cross-sectional view of a second cover portion, FIG. 16 and FIG. Front view, side view, FIG. 18 is a plan view of the control box, FIG. 19 is a partially cutaway side view of the control box, FIG. 20 is a front view of the control box, FIG. 21 is a rear view of the control box, FIG. 22 is a sectional view of the control box, FIG. 23 is a plan view of the bottom cover, FIG. 24 is a side view of the bottom cover, FIG. 25 is a front view of the bottom cover, and FIGS. 26A and 26B are other levers. It is the top view and side view which show a guide. In the drawing, 1 is a traveling body, 3 is a fender, 6 is a side panel, 6a is a lateral rib, 6b is a setting device mounting portion, 6e is a front and rear rib, 6f is an inclined surface, 17 is a second cover, and 18 is elevation control. A lever 20 is a lifting control switch.

Claims (1)

(57) [Claims] 1. A farm tractor having a control lever and a control switch for controlling the lifting and lowering of a working unit attached to a side panel provided outside a driver's seat, a lateral rib is provided at an intermediate portion in the front-rear direction of the side panel. An inclined surface that is lower toward the front in front of the lateral rib, and the control switch is disposed below the inclined surface such that the switch operation unit is opposed to the inclined surface, and the upper surface is defined by the lateral rib and the inclined surface. A front and rear rib is provided so as to pass to the outside and then to the front end of the panel, and a lever guide is provided in front of the control switch and inside the front of the front and rear ribs so as to be higher than the lower part of the inclined surface. Wherein the control lever is disposed such that the lever operation portion protrudes higher than the front and rear ribs.