WORKING MACHINE AND PIN-TYPE LOAD CELL

摘要

PROBLEM TO BE SOLVED: To provide an inexpensively-manufacturable pin-type load cell capable of performing high-precision measurement even if the direction of the action of a load is changed, and a working machine equipped with the pin-type load cell. SOLUTION: The working machine 200 which is equipped with the pin-type load cell 4 utilized as a pin 4A of a link mechanism 204 and detecting a load acting from various directions includes a pin hole 4B which is formed in the axial direction of the pin, and two distortion sensors 8 and 9 which are positioned on the same perimeter of a wall surface of the pin hole or the outer periphery of the pin and attached to two surfaces orthogonal to each other. A value which is obtained by dividing a diameter 4D of the pin hole by an outside diameter 4C of the pin is set at 0.2 or smaller. COPYRIGHT: (C)2010,JPO&INPIT