Patent ID: 7376981
Filing Date: 2008-05-27
Classification: A42B

Abstract:
1. A helmet wherein a head protecting body to be worn on a head of a helmet wearer comprises a cap-like main cap portion and a subsidiary cap portion attached to said main cap portion by axial support means to be reciprocally pivotal so as to selectively cover a wearer's chin, said head protecting body is provided with a locking mechanism which locks said subsidiary cap portion with respect to said main cap portion when said subsidiary cap portion is in a backward state where said subsidiary cap portion covers the chin, said locking mechanism comprises a lock pin provided to said main cap portion, and a lock lever having a locking recess, with which said lock pin is engageable relatively when said subsidiary cap portion is in the backward state, and provided to said subsidiary cap portion, and an angle that a third straight line, which extends from a center of said lock pin in a direction along which said lock pin starts to relatively disengage from said locking recess in the backward state, seen from the side direction of said head protecting body, forms with a second straight line obtained by extending a first straight line, which extends from a center of said axial support means to the center of said lock pin in the backward state, seen from the side direction of said head protecting body, from the center of said lock pin in a direction opposite to the center of said axial support means so as to be substantially identical with the first straight line, falls within a range between an angle which is upward from the second straight line by 65° and an angle which is downward from the second straight line by 85°.