ANTENNA DEVICE FOR CONSTRUCTION MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an antenna device for a construction machine eliminating any possibility of touching an obstacle on the outside. SOLUTION: A support cover 15 is attached to a support metal fitting 11 attached to a support 3 of an operation room and a cylindrical member 16 is supported to the support cover 15. The cylindrical member 16 is composed of a radio wave transmissive material such as carbon graphite etc. An antenna support plate 20 having a screw part 21 in its outer circumferential part is fastened to the upper end part of the cylindrical member 16. The antenna 22 is disposed in a lower surface of the antenna support plate 20 with its facing to the inward of the cylindrical member 16 and fixed to the antenna support plate 20 by an antenna connecting metal fitting 23. An antenna cable 24 to be connected to the antenna 22 is drawn out from the antenna connection metal fitting 23 and enters into the operation room via grommet 14.