| 摘要 |
<p>The strap has a separable headband made of soft material and connected with a left strap junction (1) and a right strap junction, where each junction has a headband piece and an occiput band piece. The junctions have an intersection area forming an intersection point between the pieces of the respective branches. A joint plate (6) is connected with the junctions by a fixing bar (7) to detachably connect the strap with a helmet.</p> |
