| 摘要 |
<p>The componible window cross-bar (Fig. 1) has a function of protection against breaking into the apartments through windows or some other apertures. To assemble the cross-bar's elements, and mounting to the aperture, no welding, riveting or screws are necessary to be applied. The cross-bar is composed of prefabricated elements (1 to 5) (Fig. 2) specially perforated and shaped in order to insure, once crossed, the inseparable joint. It is due to a particular indent (7) on the perforations (6) (Fig. 3), which once closing the bar's angle, are going to be overlapped by making a strong clinch. The mounting to the wall aperture can be done by using the particular fastening joint group (Fig. 9 and 12) composed of the metal spike (9) spike guide (10) and clasp prolongation tube (8) or using the 'pull tight screw group' (Fig. 11). The cross-bar can be also mounted by attaching to the window frame as shown in the Figure.</p> |
