| 摘要 |
<p>The plastics plug detachably secures components to supporting plates, e.g. motor vehicle body panels. It has a head for securing to the component and a stem inserted in a drilling in the plate. Flexible blades extend radially from the solid core of the stem, being arranged in groups in the axial direction, and their outer edges coincide with an imaginary cylinder of dia. greater than that of the drilling. The core of the stem comprises two solid bars (2,3) parallel and spaced apart and of polygonal cross-section, joined together in a common point. There are two sets of blades, on the sides (13,14) of the bars away from each other.</p> |
