| 摘要 |
<p>The hook is releasable from the plate (1) and incorporates an open eyelet (5a) which in the fitted position extends a right-angles downwards from the plate. The hook also has an intermediate part (5b) and an angled part (5c), which forms an angle of around 90 deg. with the other parts. The angled part on fitment is pushed into the central hole against the effect of a spring component (6) arranged on the plate rear side. On insertion, the eyelet and the intermediate part are orientated in the plate plane so that after the insertion is completed they are turned through approximately 90 deg. to a plane at right-angles to the plate, whilst the angled part adopts a position parallel to the plate. The spring component in the rest position locates against the rear side of the plate and covers the central hole when the hook is not fitted, whilst it locates against and pressed the angled part against the plate rear side when the hook is fitted.</p> |
