| 摘要 |
<p>The trim is made of supple or semi rigid material and has a core (1) and two joints parts or lips (2,3) solid to the core. The lips cooperate by elastic deformation with the faces (8a,8b) of the moving frame (8) which does not carry the trim, to make, with this frame, two continuous lines of contact. The lips, before placing on the fixed frame (5), are inclined with respect to the core so that their direction lines cross. Alternatively, the lips can be parallel and on the same side of the core, in which case the trim is placed on the moving frame (8).</p> |
