ドアコック

noun

door emergency opening device; emergency door release

A device, often a lever or handle, used to open a door in an emergency, such as on trains or buses. Wasei-eigo from 'door cock'.

wasei-eigo (Japanese-coined English), from door cock

• 非ひ常じょう時じにはドアコックを操そう作さしてドアを開あけてください。

  In an emergency, operate the door emergency opening device to open the door.