CHECKING APPARATUS FOR TIGHTENED NUT OR BOLT CONDITION

摘要

PURPOSE: it prevents the nut of damage screw from unclamping nut for checking that the state of connection provides and has coupled complete by detecting selected nut. ;CONSTITUTION: for checking that the state screw of connection includes the reading unit (130) of a frequency measure sensor (110). The frequency measure sensor is mounted on screw part and has detected impulse wave by screw rod transmission portion, which exports frequency measure detection sensor of the message sink about frequency. ;The 2012 of copyright KIPO submissions