| 摘要 |
According to the invention, the perforated plate fastening to a support structure (3, 4, 5) is carried out with the aid of plastic expanding tubes (10) which are inserted from above into bores (8, 6) of the perforated plates (2) bearing against one another at their edges at the abutment point (1), and in the strips (7) on the bottom side and also in the support structure and are then radially and elastically expanded by means of cylindrical pins or bolts (11) driven in from above, as a result of which a firm wedge fastening is obtained. The arrangement is configured such that the fastening pins (11) can be driven out of the expanding tubes (10) in a downward direction to release the connection. <IMAGE>
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