JPH1121949A - Driver's seat device for construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep positional relationship in the vertical direction of a seat and an operating device constant even when the place of the seat is changed by a height control device by installing the operating device on the side, where the seat of the height control device is mounted. SOLUTION: A frame 14a is formed integrally on the side, where the seat 16 of a height control device 14 is set up, the seat 16 is adjusted in the longitudinal direction by sliding devices 11, 13 and in the vertical direction by the height control device 14 and a suspension system 12 by a knob respectively, and the relation places of driver itself and control levers 9 are positioned at places easy to be operated and controlled. Since the right console 6a and left console 6b of an operating device 6 are installed to the frame 14a mounted on the side, where the seat 16 of the height control device 14 is set up, at that time, positional relationship in the vertical direction of the seat 16 and the control lever 9 of the operating device 6 is not changed even when the place of the seat 16 is altered to an upper section or a lower section by the height control device 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driver's seat device for a construction machine, and more particularly to a driver's seat device in which the relative position between a seat and a steering device is improved so that the steering operation can be performed more easily.

[0002]

2. Description of the Related Art A driver's seat device of a construction machine includes a driver's seat on which a driver sits and a control device for operating the construction machine. The driver's seat device is provided to reduce the vibration of the construction machine transmitted to the driver and to position the control device according to the driver's physique so that the driver can operate the vehicle comfortably and easily. Is attached to the construction machine main body via a suspension device, and is attached so as to be vertically adjustable via a height adjusting device and front-rearward via a slide means.

Referring to FIGS. 3 and 4, a typical conventional driver's seat apparatus will be described. First, a driver's seat apparatus generally designated by reference numeral 20 in FIG. ing. The driver's seat 24 includes a suspension device 1 mounted on a support member 10 installed on the floor 7.
2, a height adjustment device 14 mounted on the suspension device 12, and a seat 16 mounted on the height adjustment device 14. The driver's seat 24 is further provided with a slide device 11 between the support member 10 and the suspension device 12. Height adjustment device 14
Thereby, the vertical distance between the seat 16 and the suspension device 12 can be freely adjusted. Further, the position of the seat 16 and the suspension device 12 with respect to the support member 10 in the front-rear direction (the direction perpendicular to the paper surface in FIG. 3) can be freely adjusted by the slide device 11.
The control device 26 includes a pair of consoles 26a and 26b erected from the floor 7 on both sides of the driver's seat 24, and a control lever 9 is provided at an upper end of each of the consoles 26a and 26b.

Referring to FIG. 4, a driver's seat device generally designated by the numeral 30 will be described. The driver's seat device 30 is constructed by connecting consoles 26a and 26b, which are erected from the floor 7 of the driver's seat device 20, to the floor 7. It is attached to the driver's seat 34 without being erected from above. In FIGS. 3 and 4, substantially the same parts are denoted by the same reference numerals. In the driver's seat device 30, the height adjusting device 14 on the suspension device 12 is used.
A frame 31 is provided integrally on the mounting side. Consoles 36a and 36b are attached to the frame 31 on both sides of the driver's seat 34. The driver's seat 34 is further provided with a slide device 13.
And the height adjustment device 14. The seat 16 and the suspension device 1 are
The position of the support member 2 can be freely adjusted in the front-rear direction (the direction perpendicular to the plane of FIG. 4) with respect to the support member 10.

[0005] The driver's seat device 2 configured as described above
The seat 16 provided in the driver's seat device 30 and the steering device 36 provided in the driver's seat device 30 are mounted on the floor 7 via the suspension device 12, so that the vibration of the construction machine (Vibration of floor 7) is damped and damped. On the other hand, since the control device 26 provided in the driver's seat device 20 is erected directly on the floor 7, it is not damped by vibration of the construction machine (vibration of the floor 7). Therefore, the driver's seat apparatus 20 is often used for construction machines having relatively small and small vibrations, and the driver's seat apparatus 60 is widely used for construction machines such as hydraulic shovels having relatively large vibrations and shocks.

[0006]

The conventional typical driver seat devices 20 and 30 as described above have the following problems to be solved. That is, the driver adjusts the height of the seat 16 from the floor 7 to the height adjustment device 14 in accordance with the physique.
In the driver's seat device 20 (FIG. 3), the steering device 26 is fixed to the floor 7, and in the driver's seat device 30 (FIG. 4), the driver device is fixed to the frame 31 of the suspension device 12. Therefore, the relative position of the control lever 9 and the seat 16 in the vertical direction, that is, the positional relationship with the driver's arm changes, and the control lever 9
Operation becomes defective. For example, when a driver with a large physique adjusts the height of the seat 16 from the floor 7 to a high position by the height adjusting device 14, the control lever 9 remains at a low position.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and the technical problem is that even if the vertical position of a seat on which a driver sits is changed by a height adjusting device, the seat and the steering device cannot be moved. An object of the present invention is to provide a driver's seat device of a construction machine whose vertical position does not change. Another object is to provide an improved driver's seat apparatus without increasing costs.

[0008]

That is, according to the present invention, as a driver's seat device of a construction machine for solving the above technical problem, the steering device is provided with the seat of the height adjusting device. A driver's seat device for a construction machine, which is integrally attached to the side.

Therefore, in the driver's seat device of the construction machine according to the present invention, the steering device is mounted on the side of the height adjustment device on which the seat is mounted, so that the position of the seat is changed by the height adjustment device. However, the vertical positional relationship between the seat and the control device does not change. Further, since the conventional driver's seat apparatus can be provided without largely changing the configuration, the manufacturing cost does not increase.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a driver's seat apparatus for a construction machine constructed according to the present invention will be described in more detail with reference to the accompanying drawings. FIG.
2 and FIG. 2, parts substantially the same as those in FIG. 3 and FIG. 4 are indicated by the same reference numerals.

Referring to FIGS. 1 and 2, the driver's seat device, generally designated by the reference numeral 2, comprises a driver's seat 4 and a steering device 6.
And The driver's seat 4 includes a suspension device 12 attached to a support member 10 installed on the floor 7, a height adjustment device 14 attached to the suspension device 12, and an attachment device mounted on the height adjustment device 14. Seat 16 provided. A slide device 11 is provided between the support member 10 and the suspension device 12, and a slide device 13 is provided between the height adjustment device 14 and the seat 16. Slide device 1
1 is provided so that the seat 16, the height adjustment device 14, and the suspension device 12 are integrated, and the position thereof can be freely adjusted in the front-rear direction (the direction perpendicular to the paper surface in FIG. 1) with respect to the support member 10. I have. On the other hand, the slide device 13 is provided so that the position of only the seat 16 can be freely adjusted with respect to the height adjustment device 14 in the front-rear direction (the direction perpendicular to the plane of FIG. 1). The control device 6 includes a pair of consoles, a right console 6a and a left console 6b, on both sides of the driver's seat 4, and a control lever 9 is disposed at an upper end of each of the right console 6a and the left console 6b. The right console 6a and the left console 6b are mounted on a frame 14a fixed to the seat 16 mounting side of the height adjustment device 14.

The configuration of the illustrated driver's seat device 2 configured according to the present invention basically has the configuration of a conventionally known driver's seat device. Therefore, the details of the following device itself, which is not directly related to the configuration of the novel feature of the present invention, are omitted in principle. That is, the support member 1
0, the slide device 11, the suspension device 12, the slide device 13, the seat 16 and the like will not be described in detail.

The height adjusting device 14 is also known per se. The distance between the parallel upper and lower surfaces is formed so as to be adjustable by a link, a spring, its fixing means and the like. In the driver's seat device 2 of the present invention, the height adjusting device 1
A frame 14a is integrally formed on the side (upper surface) to which the fourth seat 16 is attached. This frame 1
4a is provided to extend in the front-back direction of the driver's seat 4 (the direction perpendicular to the paper surface in FIG. 1) and the left-right direction (the left-right direction in FIG. 1). The frame 14a may be basically the same as the frame 31 of the driver's seat 34 shown in FIG. The right console 6a and the left console 6b of the control device 6 are attached to the frame 14a.

The attachment of the right console 6a and the left console 6b to the frame 14a is performed by the frame 31 and the consoles 56a and 5b of the conventional driver's seat apparatus 30 shown in FIG.
6b. Therefore, a detailed illustration and description thereof is omitted.

The control device 6 is also known per se.
Each of the right console 6a and the left console 6b accommodates, for example, a hydraulic pilot valve (not shown) operated by the control lever 9. The pilot oil whose flow direction, pressure, flow rate and the like are controlled by the hydraulic pilot valve is sent and operated through a hydraulic pipeline such as a hydraulically operated valve of the construction machine body, for example, a hydraulic hose.

The operation of the driver's seat apparatus 2 of the construction machine as described above will be described with reference to FIGS. 1 and 2. (1) The driver sits on the seat 16 of the driver's seat apparatus 2 and has the physique of the driver himself. The seat 16 is moved in the front-rear direction by the slide device 11 and the slide device 13 in accordance with the height adjustment device 1.
4, the suspension device 12 is adjusted by the knob 12a according to its own weight in the vertical direction,
The relative position between the driver and the control lever 9 is set to a position where the driver can easily perform the control operation. (2) Here, the right console 6a and the left console 6b of the control device 6 are attached to the frame 14a provided on the side of the height adjustment device 14 to which the seat 16 is attached. Even if the position is changed upward or downward by the adjusting device 14, the vertical positional relationship between the seat 16 and the control lever 9 of the control device 6 does not change. (3) Further, since the driver's seat device 2 can be formed without significantly changing the configuration of the conventional driver's seat device (for example, the driver's seat device 30 shown in FIG. 4), the manufacturing cost does not increase.

As described above, the present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above-described embodiments, and can be variously modified or modified within the scope of the present invention. It is.

[0018]

According to the construction machine driver's seat device constructed in accordance with the present invention, even when the vertical position of the seat is changed by the height adjustment device, the vertical position of the seat and the steering device is changed. An invariable driver's seat device for a construction machine is provided. In addition, it is provided without increasing the cost.

[Brief description of the drawings]

FIG. 1 is a front view of a driver's seat device of a construction machine configured according to the present invention.

FIG. 2 is a side view of the driver's seat apparatus when FIG. 1 is viewed in the direction of arrows AA.

FIG. 3 is an explanatory view of a conventional driver's seat device.

FIG. 4 is an explanatory view of another conventional driver's seat device.

[Explanation of symbols]

 2, 20, 30: Driver's seat device 4, 24, 34: Driver's seat 6, 26, 36: Steering device 6a: Right console 6b: Left console 11, 13: Sliding device 12: Suspension device 14: Height adjusting device 14a : Frame 16: Seat

Claims (1)

[Claims] 1. A driver's seat and a control device, wherein the driver's seat includes a suspension device mounted on a floor,
Including a height adjustment device mounted on the suspension device, and a seat mounted on the height adjustment device, the height adjustment device reduces the vertical distance between the suspension device and the seat. A driver's seat device for a construction machine which is freely adjusted, wherein the control device is integrally attached to a side of the height adjustment device to which the seat is attached. Seat equipment.