标题: 求EN71 4.15.1.6链条护罩的解释 [打印本页] 作者: dotzuv 时间: 2011-10-28 19:55 标题: 求EN71 4.15.1.6链条护罩的解释 W的理解是：传动齿轮到曲柄轮3/4包，曲柄轮外缘周围要全包。
（为唤起注意，罗嗦第二遍了）作者: syyhiw 时间: 2011-10-28 19:56
看不到圖片．．．．請上傳一下作者: dotzuv 时间: 2011-10-28 19:56
没有资料，就是标准：
Propelling chains shall have a shield from the crank to the gear wheel at the side where the leg of the child is nearest the chain (side A), and a shield around the crank on the opposite side (side B), (see Figure 7). The shield shall not have slots or holes with a width greater than 5 mm.
