UNIT FOR INNER OF SAFETY HELMET

摘要

PURPOSE: An internal device of a safety helmet is provided to enable a user to attach and detach the safety helmet and a head fixing unit with ease by rotating the removable connection part in the safety helmet. CONSTITUTION: An internal device of a safety helmet includes: a head fixing unit(300) fixing user's head which is arranged inside the safety helmet and fixes user's head; a removable connection part(310) which can be used to attach or detach the head fixing unit to the inside of the safety helmet and is connected to the head fixing unit; a ring rotating part(320) which can attach and detach the inside of the safety helmet by rotating the removable connection part; and a fixing unit(330) restricting the rotation of the ring rotating part.