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Engineering machine

A technology of construction machinery and stroke, which is applied in the direction of motor vehicles, earthmoving machines/shovels, construction, etc., can solve the problems of low operation efficiency, low operation efficiency, rising manufacturing cost, etc., to improve operation efficiency, prevent damage, The effect of reducing manufacturing costs

Active Publication Date: 2008-10-15
NIHON KENKI CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

For this reason, since a large amount of processing work is required to install the reinforcing member, there are problems such as low working efficiency and increased manufacturing cost.
[0009] And, because the reinforcement member of prior art is arranged at the rear end portion in the cab, when taking off the cab for repair and maintenance, the rear end portion in the cab with difficult work has to be taken out with a tool such as a wrench to install the reinforcement member. Bolts, there are problems such as low operating efficiency

Method used

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Embodiment Construction

[0054] Hereinafter, as a construction machine according to an embodiment of the present invention, a crawler-type hydraulic excavator is taken as an example, with reference to FIGS. Figure 14 to explain in detail.

[0055] In FIG. 1 , 1 is a crawler-type hydraulic excavator as a construction machine. This hydraulic excavator 1 is roughly composed of a lower traveling body 2 that can freely walk, and an upper revolving body 3 that is rotatably mounted on the lower traveling body 2 . , It is configured as a working device that can be installed on the front side of the upper rotating body 3 in a vertically tilted manner to perform excavation work of earth and sand.

[0056] In addition, the upper revolving body 3 includes: a revolving frame 5 described later that is rotatably provided on the undercarriage 2 ; The vibration-absorbing state of the cab 7 is supported by an anti-vibration seat 41 described later and overturn regulation devices 42 and 47 for suppressing a large disp...

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Abstract

The present invention provided construction equipment which has installed therein overturning inhibiting devices for inhibiting a cab from overturning, by simple work and at a low cost, and facilitates the installation and removal of the cab. The overturning inhibiting device 42 is arranged between a left rear mounted base 11 of a base frame body 8 forming the cab 7, and a cab bearing portion 6 of a revolving frame 5, and the overturning inhibiting device 47 between a coupling member 35 of a reinforcing device 32 and the cab bearing portion 6 of the revolving frame 5, respectively. Thus even if a large load is applied to the cab 7, the cab 7 is inhibited from overturning, and therefore a vibration isolation mount 41 is protected from being damaged. Further the overturning inhibiting devices 42, 47 are assembled by simple work only by inserting stopper bolts 44, 49 into through holes 43, 48 from below the revolving frame 5, respectively, and then screwing the same to the cab 7.

Description

technical field [0001] The present invention relates to construction machines such as hydraulic excavators and tire loaders, especially construction machines having a cab on a frame. Background technique [0002] A hydraulic excavator as a construction machine generally consists of a self-propelled undercarriage, a rotatable upper revolving body mounted on the undercarriage, and a tilt-movable working device provided on the front side of the upper revolving body. [0003] In addition, a cab is mounted on the left front side of the revolving frame constituting the upper revolving body. The cab of this hydraulic excavator has a cab box which is a hollow structure, a floor which closes the lower side of the cab box, and a driver's seat on which an operator sits, various joysticks, and the like are provided on the floor. In addition, the cab is supported on the rotating frame via a plurality of anti-vibration mounts. In this way, the vibrations transmitted to the driver's cab ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/16
CPCB60Y2200/412E02F9/0808E02F9/163
Inventor 小松和则田端聪饭岛亨
Owner NIHON KENKI CO LTD
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