Construction Machine

Inactive Publication Date: 2015-09-17
HITACHI CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention aims to improve the appearance and prevent theft of a construction machine's rear camera device. The invention includes a cover member with recessed arc edges that closely match the curved surface of the counterweight, reducing any gaps between the cover and counterweight. The technical effect is improved security and a more favorable appearance.

Problems solved by technology

However, if the rear camera device is protruded largely to the rear side from the counterweight, a gap is formed between the rear camera device and the counterweight, and an integral feeling between the counterweight and the rear camera device is lost, and appearance deteriorates.
Moreover, in a state in which the rear camera device is protruded largely to the rear side from the counterweight, a bolt fixing a camera body provided on the rear camera device is exposed to the outside, and there is a concern that the camera body is stolen by loosening the bolt.

Method used

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Embodiment Construction

[0033]Hereinafter, an embodiment of a construction machine according to the present invention will be described in detail by referring to FIGS. 1 to 9 by taking a case in which the present invention is applied to a crawler-type hydraulic excavator as an example.

[0034]In FIG. 1, designated as 1 denotes a hydraulic excavator as a typical example of a construction machine. A vehicle body of this hydraulic excavator 1 is constituted by an automotive crawler-type lower traveling structure 2 and an upper revolving structure 3 mounted rotatably on the lower traveling structure 2. A working mechanism 4 for performing an excavating work of earth and sand is provided capable of moving upward / downward on a front side of the upper revolving structure 3.

[0035]Here, the upper revolving structure 3 has a revolving frame 5 forming a support structural body, and a base end of the working mechanism 4 is rotatably mounted on a front side of the revolving frame 5. On the other hand, a counterweight 9 w...

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Abstract

A counterweight (9) provided on a rear side of an upper revolving structure (3) is formed as a block body in which a boundary position between a rear surface (9B) and the upper surface (9C) is a projected curved surface (9E) which is curved with a projected arc shape. A rear camera device (11) mounted on the upper surface (9C) of the counterweight (9) is arranged on the upper surface (9C) of the counterweight (9) and in a state protruding rearward toward the projected curved surface (9E) of the counterweight (9). On the other hand, a cover member (19) covering a gap (18) formed by the projected curved surface (9E) is provided between the projected curved surface (9E) of the counterweight (9) and a rear part lower surface (12F) of a mounting plate (12) of the rear camera device (11).

Description

TECHNICAL FIELD[0001]The present invention relates to a construction machine that is provided with a counterweight such as a hydraulic excavator, a hydraulic crane and the like.BACKGROUND ART[0002]In general, a construction machine such as a hydraulic excavator or the like generally has its vehicle body configured by an automotive lower traveling structure and an upper revolving structure mounted rotatably on the lower traveling structure and performs an excavating work of earth and sand by using a working mechanism provided on the upper revolving structure capable of moving upward / downward. Here, the upper revolving structure has a revolving frame which becomes a base, and the working mechanism is mounted on a front side of this revolving frame. On the other hand, a counterweight for taking a weight balance with the working mechanism is provided on a rear side of the revolving frame.[0003]Some of recent hydraulic excavators have a rear camera device (rear camera device) provided fo...

Claims

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Application Information

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IPC IPC(8): E02F9/26E02F9/18E02F3/32
CPCE02F9/26E02F9/18E02F3/32E02F9/0858E02F9/261
InventorYAMANAKAUEKI, TSUYOSHI
OwnerHITACHI CONSTR MASCH CO LTD