| 摘要 |
A system for controlling a shield plate in a helmet includes a shield plate 4 pivotally supported on a cap body 2, and a control lever 52 capable of being turned between a neutral position N in which the full closing of the cap body is permitted, and a slightly opening position A in which the shield plate in the fully closed position is pushed up and opened at a very small opening degree. In this system, the control lever 52 has a locking position permitting the control lever to turn from the neutral position in a direction opposite from the slightly opening position A. The shield plate has an abutment projection 61 formed on its inner surface, while the control lever 52 has a locking claw 52d adapted to be put into abutment against a front surface of the abutment projection 61 to inhibit the opening of the shield plate 4 upon turning the control lever 52 to a locking position B when the shield plate is in the fully closed position. Thus, the restraint of the shield plate in the fully closed position and the release thereof can be carried out properly over a long term without provision of portions rubbing each other.
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