HELMET

原文（中国語）

A helmet is disclosed. A helmet according to an exemplary embodiment of the present invention may include: a helmet body capable of surrounding a user's head; a fixing member which is fixed to a side surface of the helmet body and has a cam seat part; a movable member coupled to the fixing member so as to be linearly movable forward or backward; a pivot member which has a cam pivotally seated on the cam seat part and is disposed to be engaged with the movable member so as to be pivotable around the cam as a pivot axis; and a pressing member disposed in the fixing member to elastically support the cam and press the cam backward, wherein when the pivot member pivots from a first position toward a second position, the pivot axis moves forward and the pivot member and the movable member are accordingly displaced forward.