Patent No. EP3369639 (titled "Railcar Door Apparatus And The Railcar Equipped Therewith") was filed by Nabtesco on Feb 16, 2018. The application was issued on Jan 31, 2024.
A railcar door apparatus with a simplified emergency unlocking mechanism. The apparatus includes a door body, a locking mechanism, and an operation member that can be moved between a non-operation position, an operation position, and a second operation position. The operation member is held in place after being moved to the operation position or second operation position, and a clutch mechanism engages/disengages transmission of the operation member's movement to the locking mechanism based on power supply status. The apparatus also includes a motion detection sensor and a transmission member.

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