Locking skirt for channel-beam clamp

In a suspended ceiling grid system, an improved channel beam clamp and locking skirt assembly wherein the channel beam clamp has a recess for receiving a channel of the ceiling grid system so as to be suspended therefrom, said channel beam clamp when so suspended is disposed in an essentially vertical plane, said channel beam clamp has a plurality of prongs extending from the lower end therefrom, each prong has a curved portion at its lower end which bulges outwardly from said vertical plane so that a pair of opposite prongs of said plurality of prongs define a receiving space therebetween for receiving a bulb of a ceiling grid member of said ceiling grid system, an inverted essentially U-shaped locking skirt having a pair of legs depending from a slotted horizontal base, said plurality of prongs being slid through said slotted base when said locking skirt is slid upwardly on said channel-beam clamp forming an assembly system to permit a spreading apart of said pair of opposite prongs, said bulb of said ceiling grid system is then introduced into said receiving space and said locking skirt is slid downwardly over said curved portions of said plurality of prongs so as to press them toward each other and to clamp said bulb therebetween, a first leg of said pair of legs of said locking skirt having an inwardly bent portion which seats underneath the lower edge of at least one of said prongs and thereby inhibits an upward sliding movement of said locking skirt along said channel-beam clamp after assembly.