JP2004010196A - Arrangement of operation levers in construction machinery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To arrange a plurality of operation levers at an easy-to-operate position on a console inside the narrow cabin of construction machinery. <P>SOLUTION: On the console 4 installed in the cabin 1, a first operation lever 7 is arranged on a front row, a second operation lever 8 is arranged on a rear row, and a third operation lever 9 is arranged between the first operation lever 7 and the second operation lever 8. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an arrangement of operation levers in a construction machine, and more particularly to an arrangement of operation levers provided inside a cabin of a mobile crane.
[0002]
Problems to be solved by the prior art and the invention
Various operation levers are provided around the operator's seat inside a cabin of a construction machine such as a mobile crane. The basic arrangement and operation direction of the operating levers are determined by ISO and the like. For example, in the case of a mobile crane, the operating lever is moved up and down from the operator seat toward the front, the first hoisting lever, and the second hoisting lever. , Arranged with a swivel lever. When the raising / lowering lever is operated to the front side, it becomes “raised”, and when it is operated forward, it becomes “raised”. When the first and second hoisting levers are operated to the front side, the operation is “up”, and when the operation is performed forward, the operation is “down”. Further, when the turning lever is operated forward, the aircraft turns in the direction of the jib when viewed from the operator.
[0003]
Here, when a plurality of operation levers are arranged in the front-rear direction of the console, the first operation lever is arranged in the front row of the console and the second operation lever is arranged in the rear row. When arranging the lever, it is extremely difficult to arrange the operation lever in a narrow cabin and in a limited space of the console while observing the above-described arrangement such as ISO. In addition, the arrangement of the control valves connected to the operation lever is greatly affected.
[0004]
Therefore, there arises a technical problem to be solved in order to arrange a plurality of operation levers on a console inside a narrow cabin of a construction machine at a position where the operator can easily operate the present invention, and the present invention solves this problem. Aim.
[0005]
[Means for Solving the Problems]
The present invention has been proposed to achieve the above object, and is an operation lever provided around an operator seat inside a cabin, wherein a first operation lever is arranged in a front row of a console and a first operation lever is arranged in a rear row. In a construction machine in which a second operation lever is arranged, an arrangement of operation levers in the construction machine in which a third operation lever is arranged between the first operation lever and the second operation lever;
And, inside the console, a first control valve connected to the first operation lever is arranged in a front row, and a second control valve connected to the second operation lever is arranged in a rear row, An arrangement of operation levers in a construction machine in which a third control valve connected to the third operation lever is arranged between the first control valve and the second control valve;
And, inside the console, a first control valve connected to the first operation lever is arranged in a front row, and a second control valve connected to the second operation lever is arranged in a rear row, An arrangement of operation levers in a construction machine in which a third control valve connected to the third operation lever is disposed further rearward of the second control valve;
Another object of the present invention is to provide an arrangement of operation levers in a construction machine in which the first to third control valves are provided at a lower position inside the cabin or outside the cabin.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a cabin 1 of a crane as an example of a construction machine. The right side in the figure of an operator seat 2 is the front of the cabin 1, and side consoles 3 and 4 are provided on both left and right sides of the operator seat 2. The left side console 3 is of a fixed type, on which a swivel lever 5 is arranged.
[0007]
On the other hand, the right side console 4 is a front-rear movable type. When the door 6 is opened and getting on and off, the side console 4 can be moved rearward to widen the frontage. A first operation lever 7 for performing a crane operation is disposed in a front row of the side console 4, and a second operation lever 8 for performing a traveling operation is disposed in a rear row of the side console 4. Further, a third operation lever 9 is disposed between the first operation lever 7 and the second operation lever 8.
[0008]
Further, a throttle pedal 10 and a drum brake pedal 11 are provided on the front floor of the operator seat 2. Reference numeral 12 denotes a gate lock lever. When the door 6 is opened and the user gets on and off, the gate lock lever 12 is flipped up to activate a safety device to prevent accidental malfunction of the machine.
[0009]
FIGS. 2 and 3 show an arrangement of operation levers according to the first and second aspects of the present invention, wherein a first operation lever 7 provided in a front row of the side console 4 and a second operation lever 8 provided in a rear row of the side console 4. A third control lever 9 is disposed between the first and second control levers 15 and 16. A first control valve 15 connected to the first control lever 7 is disposed in the front row inside the side console 4 and a second control lever 15 is disposed in the rear row. 8 and a third control valve 17 connected to the third operation lever 9 between the first control valve 15 and the second control valve 16. It is arranged.
[0010]
4 to 6 show an arrangement of the operation levers according to the third aspect of the present invention. Inside the side console 4, a first control valve 15 connected to the first operation lever 7 is arranged in a front row. A second control valve 16 connected to the second operation lever 8 is disposed in the rear row, and a third control valve 17 connected to the third operation lever 9a is further provided at a rear portion of the second control valve 16. It is arranged.
[0011]
This is because when the third control valve 17 is large or when the distance between the first operation lever 7 and the second operation lever 8 is small, the first control valve 15 and the second control valve It is difficult to insert the third control valve 17 in the middle of 16. In such a case, the third control valve 17 is disposed further to the rear of the second control valve 16 as illustrated. At this time, a third operating lever may be connected to the upper part of the third control valve 17, but it may be difficult to operate the third operating valve depending on the positional relationship of the operator.
[0012]
Therefore, in such a case, the third operation lever 9a is bent forward as shown in the figure, and the grip of the third operation lever 9a is moved between the first operation lever 7 and the second operation lever 8. By arranging them between them, operability is improved. At this time, as shown in FIG. 5, the third operation lever 9a is disposed between the two second operation levers 8, 8 so that the second operation lever 8 and the third operation lever 9a are connected to each other. Avoid interference. Alternatively, as shown in FIG. 6, the third operation lever 9a may be arranged through the side of the second operation lever 8.
[0013]
Although not shown, all of the first to third control valves 15, 16 and 17 do not necessarily need to be installed inside the side console 4, and the first to third control valves 15, 16 and 17 are not necessarily provided. , 17 may be installed at a lower position inside the cabin 1, for example, below the operator seat 2 or on the floor, or may be installed outside the cabin 1. In such a case, the first to third control valves 15, 16, 17 to the first to third operation levers 7, 8, 9a are connected by a link or the like.
[0014]
The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.
[0015]
【The invention's effect】
As described in detail in the above embodiment, the invention according to claim 1 is characterized in that the third operation lever is provided between the first operation lever provided in the front row of the console and the second operation lever provided in the rear row. By arranging the operation levers, a plurality of operation levers can be arranged in a console provided inside the narrow cabin of the construction machine at a position where the operator can easily operate.
[0016]
According to a second aspect of the present invention, a first control valve connected to the first operation lever is arranged in the front row inside the console, and a second control valve connected to the second operation lever is arranged in the rear row. In addition, since the third control valve connected to the third operation lever is arranged between the first control valve and the second control valve, the same effect as the first aspect of the invention is achieved.
[0017]
According to a third aspect of the present invention, a first control valve connected to the first operation lever is arranged in the front row inside the console, and a second control valve connected to the second operation lever is arranged in the rear row. In addition, since the third control valve connected to the third operation lever is disposed further rearward of the second control valve, when the third control valve is large, or when the first operation lever and the first operation lever are connected to each other. Even when the distance between the second control lever and the second control lever is small, a third control valve is installed inside the console and the third control lever is disposed between the first control lever and the second control lever. Accordingly, the same effect as the first aspect of the invention can be obtained.
[0018]
According to a fourth aspect of the present invention, the first to third control valves are provided at a lower position inside the cabin or outside the cabin. The operation lever can be arranged while the control valve is arranged with a high degree of freedom.
[Brief description of the drawings]
The figure shows an embodiment of the present invention.
FIG. 1 is a perspective view showing a cabin of a crane.
FIG. 2 is a partially cutaway side view of a side console in which the operation levers according to the first and second aspects of the invention are arranged.
FIG. 3 is a perspective view of a side console on which operation levers according to the first and second aspects of the invention are arranged.
FIG. 4 is a partially cutaway side view of a side console in which the operation levers according to the invention of claim 3 are arranged.
FIG. 5 is a perspective view showing an example of a side console in which the operation levers according to the invention of claim 3 are arranged.
FIG. 6 is a perspective view showing another example of the side console in which the operation levers according to the invention of claim 3 are arranged.
[Explanation of symbols]
Reference Signs List 1 Cabin 2 Operator seat 3 Side console 4 Side console 7 First operating lever 8 Second operating lever 9 Third operating lever 9a Third operating lever 15 First control valve 16 Second control valve 17 Third Control valve

Claims (4)

An operation lever provided around an operator seat in a cabin, wherein a first operation lever is arranged in a front row of a console and a second operation lever is arranged in a rear row of the console. An arrangement of operation levers in a construction machine, wherein a third operation lever is arranged between the operation lever and the second operation lever. Inside the console, a first control valve connected to the first operation lever is arranged in a front row, and a second control valve connected to the second operation lever is arranged in a rear row. 2. The arrangement of operation levers in a construction machine according to claim 1, wherein a third control valve connected to said third operation lever is arranged between said first control valve and said second control valve. Inside the console, a first control valve connected to the first operation lever is arranged in a front row, and a second control valve connected to the second operation lever is arranged in a rear row. 2. The arrangement of operation levers in a construction machine according to claim 1, wherein a third control valve connected to said third operation lever is disposed further rearward of said second control valve. 4. The arrangement of operating levers in a construction machine according to claim 2, wherein the first to third control valves are provided at a lower position inside the cabin or outside the cabin.

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