초록 ▼

A ceiling panel that conceals the grid in a suspended ceiling, having opposed active first and second edges with profiles different from one another, and opposed passive edges. An access kerf, and a registration kerf, at different levels in the active edges, along with a registration step in one act

A ceiling panel that conceals the grid in a suspended ceiling, having opposed active first and second edges with profiles different from one another, and opposed passive edges. An access kerf, and a registration kerf, at different levels in the active edges, along with a registration step in one active edge, permit the panel to be inserted, or removed, by successive hinge actions. When installed, the panel is locked to the ceiling with no visual indications on how the panel can be removed. During installation the panel is self-centering and self-aligning.

대표청구항 ▼

[ I claim:] [1.] For use in a suspended ceiling that has a panel supporting grid formed of inverted T-section beams, a panel, when extending horizontally, having:a) opposing first and second edges (A and B,) that are active in installing and removing the panel into and from the grid, each of which h

[ I claim:] [1.] For use in a suspended ceiling that has a panel supporting grid formed of inverted T-section beams, a panel, when extending horizontally, having:a) opposing first and second edges (A and B,) that are active in installing and removing the panel into and from the grid, each of which has a profile different from the other;b) opposing third and fourth edges (C and D), each of which has a profile;c) an access kerf (33) in the profile of the first edge (A) that extends along the first edge (A) at a first level;d) a registration kerf (35) in the profile of the second edge (B) that extends along the second edge (B);e) a tread (30) in the registration kerf (35) of the second edge (B) that extends along the second edge (B) above the level of the access kerf (33) in the profile of the first edge (A);f) a registration step having a riser (34) and a tread (39) in the profile of the first edge (A) that extends along the first edge (A) above the level of the access kerf (33) in the first edge (A), the tread (39) being approximately at the same level as the tread (30) in the second edge (B); andg) an upper lip (42) on the first edge (A) having an underside formed by the tread (39) of the registration step, and an upper lip (43) on the second edge (B) having an underside formed by the tread (30) of edge B, each of said undersides of upper lips (42, 43) being at approximately the same level when the panel extends in the plane of the grid, that support the panel in the ceiling.