Title:
CONSTRUCTION MACHINE
Document Type and Number:
Japanese Patent JP2020128641
Kind Code:
A
Abstract:
To provide a construction machine capable of notifying the driving state of an engine in a state difficult for a worker to recognize the driving sound of a fan.SOLUTION: A hydraulic shovel 1 comprises an engine 5, a heat exchanger 6 for cooling the engine 5, a fan 7 sending air to the heat exchanger, a controller 9, and speakers 8A, 8B. The controller 9 outputs a notification instruction to notify the driving state of the engine 5 to the speakers 8A, 8B, when the engine 5 is in the driving state and the fan 7 is in a low speed rotation state or in a stopped state. The speakers 8A, 8B output alarm sound indicating the driving state of the engine 5 corresponding to the notification instruction from the controller 9.SELECTED DRAWING: Figure 1
Inventors:
YOKOTA JUNPEI
FUJIWARA YUSUKE
FUJIWARA YUSUKE
Application Number:
JP2019021349A
Publication Date:
August 27, 2020
Filing Date:
February 08, 2019
Export Citation:
Assignee:
KOBELCO CONTSTRUCTION MACHINERY LTD
International Classes:
E02F9/26; E02F9/24
Attorney, Agent or Firm:
Hiroomi Tateishi
Yoshihiro Izumi
Yoshihiro Izumi