Under floor housing system for aircraft passenger entertainment and communications systems
A floor for an aircraft cabin, made of a removable floor panel having an opening and fasteners for removably mounting to flanges of transverse floor beams and longitudinal floor joists, with a channel formed by a pair of support brackets having: an upper wall mounted to an underside of the floor panel adjacent the opening; side walls; and a bottom wall, the floor having cover mounting tabs extending from the upper walls into the opening; and an access cover removably mounted on the tabs.
1 . An elongate channel for housing electronic equipment under the floor of an aircraft cabin, the floor having removable floor panels mounted with fasteners to flanges of transverse floor beams and longitudinal floor joists, the channel comprising:
a pair of support brackets having: an upper wall adapted for hanging from one said floor panel adjacent an opening therethrough; side walls; and a bottom wall;
a plurality of cover mounting tabs extending from the upper walls into the opening; and
an access cover removably mounted on the tabs.
2 . An elongate channel according to claim 1 wherein at least one of the access cover and the mounting tabs includes a shear pin and a matching one of the mounting tabs and the access cover includes a shear pin receiving recess.
3 . An elongate channel according to claim 1 wherein the access cover includes a latch.
4 . An elongate channel according to claim 4 wherein the latch has an end clamp engaging an underside surface of the floor beam flange.
5 . An elongate channel according to claim 1 wherein the bottom wall includes an equipment mounting fastener.
6 . An elongate channel according to claim 1 wherein the side walls include cable mounts.
7 . An elongate channel according to claim 1 wherein the bottom wall includes at least one cooling air inlet.
8 . An elongate channel according to claim 7 wherein the bottom wall includes a cooling air plenum in communication with at least one said cooling air inlet.
9 . An elongate channel according to claim 7 wherein the channel comprises a cooling air distribution duct having an inlet in communication with a source of pressurized cooling air and having a plurality of outlets in communication with a plurality of said cooling air inlets longitudinally spaced apart along a length of said channel.
10 . An elongate channel according to claim 9 wherein the source of pressurized cooling air comprises at least one air blower.
11 . An elongate channel according to claim 10 wherein the source of pressurized cooling air comprises a plurality of air blowers each having a check value disposed between the blower and the distribution duct.
12 . A floor for an aircraft cabin, comprising:
a removable floor panel having an opening therethrough and fasteners for removably mounting to flanges of transverse floor beams and longitudinal floor joists;
a channel defined by a pair of support brackets having: an upper wall mounted to an underside of the floor panel adjacent the opening; side walls; and a bottom wall;
a plurality of cover mounting tabs extending from the upper walls into the opening; and
an access cover removably mounted on the tabs.
13 . A floor according to claim 12 including a floor panel having cable feed through opening between a top and a bottom surface of the floor panel.