RADIO TYPE ANNUNCIATOR FOR CONSTRUCTION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To transmit a working sign etc., surely to an operator in a driver's cab for a construction equipment even at the time of large noises in a jobsite. ;SOLUTION: A transmitting device 3 consisting of a control switch and a transmitter transmitting communication radio waves by closing the control switch is installed to a hydraulic backhoe 1, and a receiving device 14 composed of a receiver receiving the communication radio waves transmitted from the transmitting device 3 and a speaker informing the reception of the communication radio waves by the reciver is mounted on a dump car 12 conducting Joint works with the hydraulic backhoe 1. Accordingly, a working sign, etc., can be transmitted from the driver of the hydraulic backhoe 1 to the driver of the dump car 12 through the communication radio waves.;COPYRIGHT: (C)1998,JPO