Transfer vehicle system

A transfer vehicle system in which a plurality of transfer vehicles travel on a predetermined transport path, the transfer vehicle system comprising:

• a measurement portion provided at a portion of a path continuing to the transport path to measure a measurement target portion included in the transfer vehicle located on the continuing path;
• an identifier to identify the transfer vehicle for which the measurement target portion has been measured by the measurement portion;
• a storage to store a measurement result measured by the measurement portion and an identification result identified by the identifier in association with each other;
• and
• a notifier to provide notification of information concerning a state of the measurement target portion determined based on the measurement result and a reference value;
• wherein
• the transport path includes a track on which a traveling portion of the transfer vehicle travels;
• the track includes an inspection plate to press the traveling portion in a width direction perpendicular or substantially perpendicular to an extending direction of the track;
• and
• the measurement portion measures the measurement target portion of the transfer vehicle in a state of being pressed by the inspection plate.