| 摘要 |
The cassette (3) contg. the fan is connected on one side to a wheel borne frame (1) formed by holed profiles, and this via bolt unions (18), and on the other side with the other cassettes (8,9,10) by at least one stirrup or stirrup-type part (19). At one end, the stirrup is applied against the edge of one of the cassettes (9), and at its opposite end it has one or more nuts (32) which are hidden inside holed profiles (14), and tightenable via closable apertures (31). The stirrup comprises a U-shaped bent bar (19), the free ends of which are threaded (23) to work in conjunction with the nuts (32). At its ends remote from the threads, the bar is bent at right-angles to its plane. |
