| 摘要 |
In a helmet shield system, a shield plate is comprised of a shield body covering a window opening in a front surface of a cap body, and an end plate pivotally mounted on the cap body, the shield body and the end plate being coupled to each other by eyelets. A click stop mechanism is provided between the end plate and a base plate fixed to the cap body, and a cover is secured to cover the end plate. In this case, the shield body is formed from any of a polycarbonate, an acrylic resin, and a polyvinyl chloride, and the end plate is formed from any of a polyacetal, nylon and ABS. This provide a good view through the shield plate with a high transparence and an increased durability of the click stop mechanism which retains the shield plate at a desired opening degree.
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