| 摘要 |
<p>The intention of the invention is to increase or reduce the deformability of the clamping mechanism for folders, especially its basic plate (1). Thus the mechanism can become essentially lighter from mechanisms known so far and can also be easier to manufacture, fulfilling nevertheless all the requirements which products of this kind should meet, especially within the limits of deformability still permitted in regular loading conditions. For this purpose, the mechanism includes the improved basic plate (1) which comprises at least one stopping prominence (15', 15") in the areas under each of linking sections (223', 223") between the central section (222) and respective bearing sections (221', 221") of the clamping mechanism (2). At the same time, the central area (16) of the basic plate (1) under the holder (14) is elevated above other areas of the basic plate (1) owing to a prominent edging (160) surrounding at least a part of it. The said plate (1) may be still further reinforced by comprising - in addition to the stopping prominences (15', 15") and the elevated central area, surrounded at least partly by the edging (160) - still at least one longitudinal reinforcement (17, 18) and optionally also at least one transverse reinforcement (19', 19") lying within the areas of each respective positioning nest (10', 10").</p> |
