Engineering machinery

Abstract

PROBLEM TO BE SOLVED: To provide construction equipment which is constructed such that a signal line group is hidden under a driver seat bearing stand to secure a space under consoles, exhibits a good look, and facilitates cleaning work. SOLUTION: According to the structure of the construction equipment, right and left pilot hose groups 30, 29 are introduced from operating lever devices 27, 24 through a horizontal opening 19 into the driver seat bearing stand 14, and then connected from the interior of the driver seat bearing stand 14 through a vertical opening 13 etc. formed in a floor plate 12 to a control valve 5. In this manner the pilot hose groups 30, 29 can be hidden in the driver seat bearing stand 14. By virtue of this structure, component parts such as a duct of an air conditioning unit 39, and a tank for a window washer liquid, for instance, can be arranged in the space between the consoles 23, 26 and the floor plate 12. Further the appearance is improved and cleaning of the periphery of a driver seat 22 is facilitated.

Description

technical field [0001] The present invention relates to a construction machine such as a hydraulic excavator, and more particularly, to a construction machine provided with operating lever devices for operating working devices on both left and right sides of a driver's seat. Background technique [0002] Generally, a hydraulic excavator as a construction machine is composed of a self-propelled lower movable body, an upper swivel body rotatably mounted on the lower movable body, and a working device provided on the front side of the upper swivel body so as to be able to pitch. [0003] In addition, an engine that drives a hydraulic pump, a control valve that supplies and discharges hydraulic oil discharged from the hydraulic pump to a hydraulic working device, and the like are mounted on a revolving frame constituting a base of the upper revolving body. On the other hand, on the revolving frame, a floor is laid on the left front side, and a driver's seat on which an operator ...

AI Technical Summary

Problems solved by technology

[0009] Therefore, due to the existence of the left and right hose groups on the lower side of the console on the left side, there is a problem that the pipes of the air conditioner installed around the driver's seat, the container of the window washer fluid, and the vehicle tools cannot be arranged. limited by the layout

[0010] Furthermore, since the hose group is exposed outside between the console on the left side and the floor, in addition to being unsightly in appearance, there is a problem that the hose becomes an obstacle and takes time for cleaning.

[0011] In addition, even in the case of using the electric operating lever device of Patent Document 2 as the operating device, the plurality of electric wiring groups connecting the displacement sensor of the operating lever device and the control valve will become an obstacle, causing a problem with the hose assembly. almost the same problem

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