JPH062338A - Hydraulic shovel - Google Patents

Abstract

PURPOSE:To increase the effect of illumination during the work by mounting an illuminator for forward irradiation to a cylinder undulating a boom provided to a turning body, and changing the angle of irradiation with the undulation of the boom. CONSTITUTION:An illuminator 7 for forward irradiation is mounted to a boom cylinder 5 provided to a turning body 2 on a traveling body 1, and the angle of irradiation for the illuminator 7 is charged with the undulation of a boom 4. When the illuminator 7 is installed, a bracket is provided to the cylinder 5, and a plurality of illuminators can be installed through the bracket. According to the constitution, the site of the work can be sufficiently illuminated even during the work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic excavator having a working machine including a boom and a boom cylinder for hoisting the boom.

[0002]

2. Description of the Related Art Next, an example of a conventional hydraulic excavator will be described with reference to FIG.

A revolving unit 2 is rotatably mounted on an endless track type traveling unit 1. A boom 4 and a boom cylinder 5 for hoisting the boom 4 are attached to the frame 3 at the front part of the revolving structure 2 by pins so as to be capable of swinging up and down. The tip portion of the piston rod 5a of the boom cylinder 5 is connected to the middle portion of the boom 4 by a pin. Although not shown in the drawing, an arm that is rocked by an arm cylinder is connected to the tip of the boom 4,
A bucket that is rotated by a bucket cylinder is attached to the tip of the arm. An illuminator 6 for front-side irradiation is installed on a side surface portion in the middle of the boom 4.

[0004]

As described above, since the conventional illuminator 6 is installed on the intermediate side surface portion of the boom 4, the side surfaces of the arms, buckets, etc. are shaded, and the work lighting in front of the vehicle body. As a result, the effect is insufficient. The present invention has been made in view of this, and an object thereof is to easily provide a hydraulic excavator that can obtain a sufficient lighting effect regardless of the hoisting operation of the boom and the boom cylinder.

[0005]

To achieve the above object, the present invention is characterized in that a illuminator for front side irradiation is attached to a boom cylinder for hoisting a boom.

[0006]

[Function] The irradiation angle of the illuminator changes with the boom ups and downs, and a sufficient lighting effect can be obtained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. An illuminator 7 for front irradiation is attached to the boom cylinder 5.

FIG. 2 shows an embodiment in which a bracket 8 is provided on one of the pair of left and right boom cylinders 5, and the illuminator 7 is attached to the bracket 8. FIG. 3 is an embodiment in which the brackets 9 are connected to the left and right boom cylinders 5, and the illuminator 7 is attached to the central portion of the brackets 9. The solid line in FIG. 1 represents the state in which the boom 4 is raised, and the chain line represents the state in which the boom 4 is laid down. It is also possible to attach a plurality of illuminators 7, and the embodiment of FIG. 2 can be applied to a small hydraulic excavator having only one boom cylinder 5. If the illuminator 7 is tilted forward and downward with the boom 4 raised,
It can also be used as running lighting.

[0009]

Since the illuminator 7 described above is located in the space on the lower side of the boom 4, the boom 4 and the arms, buckets, and the like can be illuminated to illuminate the work site, and the boom 4 can be illuminated. Since the irradiation angle changes depending on the ups and downs, a sufficient lighting effect can be obtained.

[Brief description of drawings]

FIG. 1 is a side view showing a hydraulic excavator of the present invention,

FIG. 2 is a front view showing an embodiment of the present invention,

FIG. 3 is a front view showing another embodiment of the present invention.

[Explanation of symbols]

 4 Boom 5 Boom cylinder 7 Illuminator 8 Bracket 9 Bracket

Claims (1)

[Claims] 1. A hydraulic excavator including a working machine including a boom and a boom cylinder for hoisting the boom as a constituent element, wherein a illuminator for front irradiation is attached to the boom cylinder.