EXTERIOR BODY FOR SWIVEL BASE IN REVOLVING WORK MACHINE, PROTECTOR, AND SWIVEL BASE DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent a problem that a swivel base is easily deformed or scratched by the thrusting of an obstacle from below or its contact on the side face. SOLUTION: A protector 30 made of a casting is fitted to each corner portion 28 of the swivel base 5, and the protector 30 is covered with an exterior body 14R.