Abstract:
A mount for a body, such as an inertial navigation unit, in relation to a support, and a coupling unit for use therein. A frame is adjustably mounted on the support and defines a plurality of support regions located in a plane normal to the axis of the frame and caging the body. A plurality of coupling units are sandwiched between each support region and the body. Each coupling unit includes an elastomeric sleeve affixed at its ends to the support region and the body, with its axis passing substantially through the center of mass of the body. Detent units are telescoped within the elastomeric sleeves in substantially coaxial relation therewith. Each detent unit includes a sleeve affixed to the frame and a plunger received therein. Ball detent elements, including ball socket and adjacent ramp conformations, releasably secure the plunger in relation to the sleeve and effect return thereof to original position after release. Adjustable heads on the plunger adjust the preload on the elastomeric sleeves as required to provide predetermined isolation of the body from continuous vibration of the support, release of the detents under predetermined conditions of shock, and restoration of the body to initial position after shock.