| 摘要 |
<p>The hook is attached to the vertical shaft (2) by a mounting portion (4) to which the hook body (5) is articulated. The hook body comprises an engagement portion (8) at the outer end shaped to define the suspension hook, and a cam portion (7) at the inner end which engages against the shaft surface to lock the hook against it. The hook portion includes a retaining tip (9) which is curved backwardly through more than 180 degrees towards the cam, such that its end point (10) is located above the engagement portion of the hook body. A diverting point (11) is defined on the inner surface of the hook body, pointing towards the inner surface of the retaining tip.</p> |
