| 摘要 |
An extendable security bar assembly (10). The assembly (10) is for placing over or in an opening (17) and has a plurality of bars (12) extending betwee n two channels (16), the two channels (16) positioned on opposing faces of the opening (17) with the bars (12) slidable within the channels (16). The bars (12) are connected at each end within the channels (16) to a transporting mechanism (20) in each channel (16) coordinated to slide the bars (12) acros s the opening (17). A drive system is provided for the transporting mechanism (30), and guides (44, 46) at ends of the channels guide (16) and retain the bars (12) in a storage area (24) substantially adjacent the opening (17).</S DOAB>
|
