| 摘要 |
A safety helmet is provided to perform detachment and attachment of an inducing duct easily in a ventilation structure of the helmet, by supporting the inducing duct by a support portion and canceling the support of the inducing duct by the operation of an operation portion. A safety helmet includes ventilation holes(31,32), an inducing duct(2R), a closing plate(4), and an operation portion(6) for pivoting the closed plate. On the surface of a cap body, the ventilation hole and the inducing duct closing the ventilation hole are installed. The closing plate closes and opens the ventilation hole, and an opening area of the ventilation hole by pivoting in a direction of the surface of the cap body. A support portion(5) for supporting the inducing duct detachably is disposed on the center of the pivoting of the closing plate. An operation portion for the attachment and detachment of the inducing duct is installed on the support portion. |
