Patent ID: 7181777

Claim:
A shield mounting device for a helmet, comprising: a mounting protrusion that is protruded from an inner surface of a helmet shield and includes a flange at an edge; a mounting plate that includes an arc shaped groove capable of guiding an operation that the flange is inserted and rotated in a state that the mounting protrusion is inserted; a base plate that includes an elastic piece elastically moving in a direction that an external force is applied when the external force is applied to the mounting protrusion in a state that the mounting plate is assembled and the mounting protrusion is inserted into the mounting plate; and a locker that is assembled between the mounting plate and the springs in such a manner that said locker slides in a direction that springs are compressed and that includes an escape prevention piece that slides in a direction that the springs are extended when the elastic piece is elastically moved by an external force applied to the mounting protrusion, so that it is inserted between a flange of the mounting protrusion and an inner surface of the shield for thereby preventing an escape of the mounting protrusion.