| 摘要 |
The strip structure (10) is intended for clamping on a flange and has a channel defined by a base (12) and two opposed side walls (13, 14); wherein one (14) of the side walls has two or more projections (17 and 18) each having, a head region (21, 22) having an arcuate surface (23, 24), and a neck region (19, 20), in such that an attempt to remove the strip structure from the flange causes each projection (17, 18) to roll into greater interference with the flange, thereby increasing resistance to the removal of the flange; and wherein the other side wall (13) is provided with an elongate limb (27> and an inward projection (32) which can be accommodated within a recess (30) of limb (27), again to resist removal of the strip from the flange. <IMAGE> |
