JPH0470360U

JPH0470360U -

Info

Publication number: JPH0470360U
Application number: JP11085890U
Authority: JP
Priority date: 1990-10-22
Filing date: 1990-10-22
Publication date: 1992-06-22

Description

[Brief explanation of the drawing]

第１図はこの考案にかかる作業灯装置をそなえ
た油圧シヨベルの要部側面図、第２図はこの考案
の作業灯装置の構成を示す図、第３図は従来技術
の作業灯装置をそなえた油圧シヨベルの斜視図で
ある。１，９……作業灯装置、４，４′……作業アタ
ツチメント、５，５′……ブーム、６，６′……
アーム、７，７′……バケツト（作業工具）、８
，１０……作業灯、１２……受信部、１３……反
射板、１８……制御モータ、１９……コントロー
ラ。 Fig. 1 is a side view of the main parts of a hydraulic excavator equipped with a work light device according to this invention, Fig. 2 is a diagram showing the configuration of the work light device of this invention, and Fig. 3 is a diagram showing a hydraulic excavator equipped with a work light device according to the prior art. FIG. 2 is a perspective view of a hydraulic excavator. 1, 9... Working light device, 4, 4'... Working attachment, 5, 5'... Boom, 6, 6'...
Arm, 7, 7'...bucket (work tool), 8
, 10...Work light, 12...Receiving unit, 13...Reflector, 18...Control motor, 19...Controller.

Claims

[Scope of Claim for Utility Model Registration] (1) A work attachment in which a boom, an arm, and a work tool are connected is equipped on the front part of the revolving upper structure, a work light is arranged on the boom, and the work light is directed in the direction of light emission. In a variable work light device, the work light is mounted on a boom so that it can be rotated vertically by a control motor, and the work light is equipped with a transmitter that generates an infrared signal, and is also capable of receiving infrared signals. A receiver is installed on the boom or upper revolving body, and a reflector is installed on the tip side of the arm, so that when the construction machine works while using the work light, the infrared signal output from the transmitter is reflected by the reflector. By reflecting the signal and inputting it to the receiver, and outputting the input signal to the control motor via the controller, the light emitting direction of the work light is made to follow the work tool near the tip of the work attachment. A work light device for construction machinery featuring: (2) A work light device that is equipped with a work attachment that connects a boom, an arm, and a work tool to the front part of the upper revolving structure, and that a work light is arranged on the boom and that the direction of light emitted by the work light can be changed. A work light placed on the boom is attached so that it can be rotated in the vertical direction by a control motor, and a transmitter that generates an electrical wavelength signal is provided on the work light,
In addition, a receiver capable of receiving electrical wavelength signals is installed on the boom or upper revolving body, and a reflector is installed on the tip side of the arm, so that when the construction machine is working when the work light is used, the signal output from the transmitter is The electrical wavelength signal is reflected by the reflector and input to the receiver,
A work light for construction machinery, characterized in that by outputting the input signal to the control motor via a controller, the light emitting direction of the work light is made to follow the vicinity of the work tool at the tip of the work attachment. Device.