Rack assembly for plug-in modules

DETAILED DESCRIPTION A rack assembly for mounting one or more plug-in type electronic/eletrical modules, such as avionic equipment, is disclosed.
The rack assembly provides mechanical isolation to the modules thereby protecting the modules from vibration and shock.
The assembly further provides cooling air to the modules by way of an air plenum disposed adjacent the module support shelf of the assembly.
Mechanical isolation is achieved by way of elongated resilient members which are fabricated from rubber or the like.
The elongated resilient members are positioned on at least two opposite sides of the module support shelf.
Each resilient member is disposed between a pair of beams, with one of the beams being connected to the support shelf and the other beam being connected to a structural support such as aircraft avionic bay bulkhead.
The air plenum is formed, in part, by a lower panel which is spaced apart from the module support shelf.
In addition, part of the apparatus which accomplishes the mechanical isolation function also serves to form part of the air plenum.