Plastic front panel for computer casing has spring mounted control knobs with associated holes, slightly smaller round plates, protrusions on panel, plate joined by corrugated plastic strip

摘要

The front panel has spring mounted control knobs, each with an associated hole with a slightly smaller round plate (2) and a gap, three or more protrusions (3b) next to each hole and distributed around it and an equal number of protrusions (3a) on the periphery of the plate. The protrusions on the front panel and on the plate are joined by a thin corrugated plastic strip (4).