Patent ID: 8166576
Filing Date: 2012-05-01
Classification: A42B,Y10T

Abstract:
1. An opening/closing device for openably/closably supporting both end portions of shield with regard to a helmet body, said opening/closing device being provided at least on a side of one end portion of said shield and comprising: a cover portion having a bearing portion and firmly attached to said a helmet body; an attaching member supported on and attached to said bearing portion of said cover portion so as to rotate together with said shield; a fixing arm coaxially attached with said attaching member and fixed to said a helmet body; a torque pin inserted into a guide long hole in an arc shape attached at a position distanced from an attaching center of said fixing arm and provided at a position distanced from a rotation center of said attaching member, and; a friction torque generation means made up of a friction washer provided between said fixing arm and said attaching member by receiving said torque pin inserted into a central portion of said friction washer, and of an elastic member.