JP4271357B2 - Traveling vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a traveling vehicle such as an agricultural machine or a construction machine, and more particularly to a traveling vehicle capable of improving the operability of various levers by an operator seated in a driver's seat.
[0002]
[Prior art]
Conventionally, in a crawler traveling vehicle such as a crawler tractor or a combiner, an operator seated in a driver's seat performs various lever operations as well as a handle operation when working with the machine body or working with a work machine connected to the front and rear portions of the machine body. Depending on the contents, especially in consideration of traveling work with working machines connected, a frequently used traveling operating lever and working equipment lifting / lowering operating lever are arranged in the vicinity of the driver's seat, and the operator It is known that it can be switched alternately with a small amount of movement.
[0003]
However, when the levers are arranged close to each other as described above, the configuration of the lever guides of the levers, particularly the difference in height of the lever guides, is not considered. When the lever is operated, the operator's hand comes into contact with the other lever guide, or the lever operation itself is difficult to perform.
[0004]
[Problems to be solved by the invention]
The present invention was created in the course of research and development in pursuit of the operability of a traveling operation lever and a working machine lifting operation lever in a traveling vehicle in view of the above situation, and the object of the present invention is as follows. Even if the operating lever for raising and lowering the work implement and the operating lever for traveling are arranged close to the same side of the driver's seat, when the operator operates each lever alternately, the hand moves to the adjacent operating lever or lever guide. It is an object of the present invention to provide a traveling vehicle that does not induce troubles such as contact and can improve operability by preventing an erroneous operation during traveling of the traveling vehicle.
[0005]
[Means for Solving the Problems]
In order to solve the problem, the first technical means adopted by the present invention is that the operating lever for raising and lowering the work implement and the operating lever for traveling are juxtaposed on the same side of the driver's seat in the aircraft traveling direction, and both levers are the same. The lever guide part height of the operating lever for raising and lowering the work implement is set higher than the lever guide part height of the operating lever for traveling, and as a second technical means, The operating lever for raising and lowering the work implement and the operating lever for traveling are arranged such that their upper operation limit position and lower operation limit position are substantially the same.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the present invention will be described in detail based on an embodiment shown in the drawings.
In FIG. 1, reference numeral 1 denotes a crawler tractor provided with a pair of left and right crawler travel devices 2 and 2 at the lower part of a body frame 3 and 3 which are arranged side by side on the left and right in the direction of travel of the body. An engine (not shown) is mounted in a hood 4 provided at the front part on the frames 3 and 3, and a driver's seat 6 is provided in a cabin 5 provided in a substantially central part between the body frames 3 and 3. A three-point link mechanism 8 including a lift arm 8a, a lift cylinder 8b, and the like is disposed on the outer surface of the mounting portion 7 provided on the rear portion of the machine frame 3 from the rear of the driver's seat 6, so that the working machine (not shown) is connected to the crawler tractor. It is comprised so that it can mount to the back part of 1 so that raising / lowering is possible.
[0007]
In the cabin 5, as shown in FIG. 2, a meter panel 10 having an operation handle 9 is disposed in front of the driver seat 6, and a left side panel 11 disposed on the left and right sides of the driver seat 6. The right side panel 12 includes a shift lever 13, a work machine lifting / lowering operation lever 14 and a traveling operation lever 15 for raising / lowering a rear work machine (not shown), which are located in front of the panels 11 and 12. The rear side of the right side panel 12 is provided with an automatic tilling depth switch for ON / OFF operation of the tilling depth automatic control and an ON / OFF operation of the inclination automatic control. An operation tool such as an inclination automatic switch, an inclination setting volume for setting a target inclination for automatic inclination control is disposed in a state of being covered by an openable / closable cover 16, and further, a right side panel The middle portion of the 2, the tilling depth setting volume 17 having a large-sized knob portion than the other operating member, PTO on-off switch 18 for intermittently driving force to the rear working machine is disposed.
[0008]
Here, the right side panel 12 will be described in detail.
3 and 4, the right side panel 12 is formed of a lever guide portion 12a that guides the operating lever 14 for raising and lowering the work implement, and a lever guide portion 12b (dotted line portion) that guides the operating lever 15 for traveling. In addition, the height of the lever guide portion 12a of the operating lever 14 for raising and lowering the work implement is set to be higher than the height of the lever guide 12b of the operating lever 15 for traveling, and the operating levers 14 and 15 are respectively The operation upper limit position A and the operation lower limit position B are arranged to be substantially the same.
[0009]
Since the present invention is configured as described above, the operator seated in the driver's seat 6 performs the steering operation of the handle 9 when performing the work with the main body of the crawler tractor 1 or the work machine connected to the rear part of the machine body. At the same time, the operating lever for raising and lowering the work implement 14 or the operating lever 15 for traveling is operated according to the work contents.
[0010]
In such tilting operation of the operation levers 14 and 15, in the present invention, in particular, the height of the lever guide portion 12 a of the operating lever 14 for raising and lowering the work implement is set higher than the height of the lever guide 12 b of the traveling operation lever 15. Therefore, when one lever is operated, the operator's hand does not come into contact with the other lever guide, so that an erroneous operation during traveling of the traveling vehicle can be prevented and the operability can be improved.
[0011]
In addition, the operating lever 14 for raising and lowering the work implement and the operating lever 15 for traveling are arranged so that the upper operation limit position A and the lower operation limit position B are substantially the same, so the operator operates each lever. At the same time, it can be easily and alternately changed with a sense of incongruity and a small amount of hand movement, and the operability can be improved.
[0012]
【The invention's effect】
In short, the present invention is arranged such that the operating lever for raising and lowering the work implement and the operating lever for traveling are juxtaposed on the same side of the driver's seat in the aircraft traveling direction, and both the levers can be tilted in the same direction. The height of the lever guide section of the control lever is set higher than the height of the lever guide section of the travel control lever. Because it is arranged to be the same,
(1) Even if the operating lever for raising and lowering the work implement and the operating lever for traveling are arranged close to the same side of the driver's seat, when the operator operates each lever alternately, the operating lever is adjacent. Alternatively, there is no problem that the lever guide is contacted, and an erroneous operation during traveling of the traveling vehicle can be prevented in advance, thereby improving the operability.
(2) Since the upper and lower limit positions of the operation levers are substantially the same, the operator can operate the levers with almost the same hand movement and operation feeling that can be operated for different purposes. And operability can be improved.
It has a very useful novel effect.
[Brief description of the drawings]
FIG. 1 is an overall side view of a crawler tractor.
FIG. 2 is a plan view of a main part centering on a driver's seat.
FIG. 3A is a side view showing a positional relationship between a right side panel and an operation lever.
(B) is a side view showing each operation lever at the operation lower limit position.
FIG. 4 is a side view showing each operation lever at an operation upper limit position.
[Explanation of symbols]
14 Operating lever for raising / lowering work implement 15 Operating lever for traveling 6 Driver's seat 12a Lever guide portion 12b Lever guide portion A Operation upper limit position B Operation lower limit position

Claims (2)

The operating lever for lifting and lowering the work implement and the operating lever for traveling are juxtaposed on the same side of the driver's seat in the aircraft traveling direction, and both levers can be tilted in the same direction. A traveling vehicle characterized in that the height is set higher than the height of the lever guide portion of the traveling operation lever. 2. The traveling vehicle according to claim 1, wherein the operating lever for raising and lowering the work implement and the operating lever for traveling are arranged such that an upper operation limit position and an operation lower limit position are substantially the same.

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