Working machine

A technology for operating machinery and operating devices, which is applied to mechanically driven excavators/dredgers, earth movers/shovels, superstructure sub-assemblies, etc., which can solve the problems of increased engine room height and dimension, and achieve comfortable operation Sexuality, ensuring operability, and reducing the effect of oppressive feeling

Inactive Publication Date: 2013-07-03
NIHON KENKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially recently, due to exhaust restrictions, it is necessary to install an exhaust treatment device or a large muffler, but as such equipment mounted in the engine room is increased or the size is increased, the height of the engine room tends to increase further

Method used

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Embodiment Construction

[0034] Next, embodiments of the working machine of the present invention will be described based on the drawings.

[0035] figure 1 It is a side view showing a hydraulic excavator constituting the first embodiment of the working machine of the present invention, figure 2 yes means figure 1 A perspective view of a revolving body included in the hydraulic excavator shown above, image 3 yes figure 2 It is an enlarged side sectional view of main parts of the rotary body shown.

[0036] The working machine according to the first embodiment of the present invention is constituted by, for example, a hydraulic excavator. Such as figure 1 As shown, the hydraulic excavator includes a traveling body 1 , a revolving body 2 disposed on the traveling body 1 , and a work implement 3 mounted on the revolving body 2 so as to be rotatable in an up-down direction. The working device 3 includes: a boom 4 mounted on the revolving body 2 so as to be rotatable in the vertical direction; a b...

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PUM

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Abstract

[Problem] To enable reduction of an oppressive feeling that an operator sitting on a driver's seat feels from an engine room and relaxation of a restriction to rearward visibility of the operator sitting on the driver's seat. [Solution] The present invention is a hydraulic excavator which comprises a rotating body (2) and a working device (34) mounted on the rotating body (2), is arranged with an operator's cab (7) having a rear window (16) at a forward position of the rotating body (2), and is arranged with an engine room (9) at a rearward position adjacent to the operator's cab (7), the engine room (9) having a ceiling portion configured from a cover member (17), wherein a portion of the cover member (17) located in the vicinity of the operator's cab (7); is configured from a surface-shaped part having a shape gradually increasing the height toward the rear of a vehicle body with the vicinity of a lower end part (16a) of the rear window (16) as a starting point (18a) between a predetermined distance from immediately behind the operator's cab (7), e.g., an inclined surface part (18). For example, the height of the starting point (18a) of the inclined surface part (18) is set to be equal to or less than that of the lower end part (16a) of the rear window (16).

Description

technical field [0001] The present invention relates to working machines such as hydraulic excavators in which a cab having a rear window and an engine room adjacent to the cab are arranged on a revolving body. Background technique [0002] In working machines equipped with a revolving body, such as hydraulic excavators, due to the working environment, etc., in order to keep the radius of gyration from protruding outward from the vehicle width of the running body as much as possible, the width dimension of the revolving body and the parts arranged at the rear of the revolving body The rearward projection of the counterweight is limited. Therefore, when it is desired to increase the ventilation area of ​​the heat exchanger accommodated in the engine room provided on the revolving structure, etc., the height dimension of the engine room has to be set to be large. Especially recently, it is necessary to install an exhaust gas treatment device or a large muffler due to the rest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/00
CPCB62D25/10B62D33/0617E02F9/0833E02F9/0866E02F9/0891E02F9/163E02F9/00E02F9/08E02F3/30E02F9/16
Inventor 清水刚中村正雄熊谷博
Owner NIHON KENKI CO LTD
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