| 摘要 |
<p>The connector (10) has a joint head (20) rotatably mounted in a bearing cup (30), which comprises an interior space for receiving the joint head and an aperture guided to the interior space. The interior space is surrounded by interior guides (D1, D2), which cooperate with external surfaces of the joint head. The joint head comprises ridges (A1, A2) that are separated from each other by recesses (C1, C2). Recesses (F2) are formed between the interior guides in the aperture. The ridges are movable through the recesses.</p> |
