Patent ID: 8214919
Filing Date: 2012-07-10
Classification: A42B

Abstract:
1. A control device to position a visor for a protective helmet, of the type in which said visor is rotatable from a configuration fully superimposed on a front opening of a cap of the protective helmet to at least a configuration partially or fully disengaged from said front opening, said device comprising manually operated locking structure to reversibly lock said visor in a plurality of positions with respect to the helmet, wherein said locking structure comprises a control element that is anchored with at least one degree of freedom to said visor, and has two teeth for engaging with two relative stops or seats provided in a guide groove of a body being integral with the helmet and suitable to pivotally anchor the visor to the helmet, said guide groove is arched with respect to the axis of rotation of the visor, said control element being movable between at least a first stable position, in which it controls engagement of one of said teeth with the relative stop or seat, a second stable position in which it controls engagement of the other said teeth with the relative stop or seat, and at least a neutral position in which it controls disengagement of said teeth from the relative stops or seats, wherein said first stable position blocks the movement of the visor in a direction opposite to that obtained by the second stable position.