公开(公告)号：US20240174451A1

公开(公告)日：2024-05-30

申请号：US18376427

申请日：2023-10-03

Applicant: SEMES CO., LTD.

Inventor： Hanbit KIM ,  Daeil JANG ,  Jongseon JEON ,  Jungdae KIM ,  Hyojoo JEOUN

IPC: B65G43/04 ,  B65G35/06

CPC classification number: B65G43/04 ,  B65G35/06 ,  B65G2201/0297 ,  B65G2203/0291 ,  B65G2203/042

Abstract: Provided is an overhead hoist transport device including an article transport vehicle having a space in which articles are loaded and unloaded, and including traveling wheels, guide wheels, and steering wheels, a traveling rail positioned along a ceiling of a semiconductor manufacturing line and providing a moving path for the article transport vehicle, a measuring sensor attached to the article transport vehicle and configured to measure a traveling state of the article transport vehicle, and a system configured to receive measured values from the measuring sensor, wherein the traveling rail includes at least one traveling section among a straight section, a curved section, and a branching section, and wherein the system is further configured to determine whether specific wheels of the article transport vehicle are detached on the traveling rail.