Track supported mounting device for aircraft

Claim 1

An aircraft floor mounting device for releasably anchoring payload units to a rail member which is provided with a substantial round head portion and spaced intervening slots, comprising: a. a body having two pair of integrally connected legs, each said pair of legs having opposed concave inner surfaces for attachingly complementing said round head portion of said rail member when engaged thereon; b. said body provided with a substantially vertically extending bore at a location between said two pair of legs; c. a plug member connected to a shaft; d. said plug member disposed between said two pair of legs with said shaft slidably engaged within said bore; e. a spring positioned next to said plug member for biasing said plug member into said slot; and f. a horizontally positioned member with eccentric means provided on said body, said eccentric means linked to said shaft so that partly rotational actuation of said member causes a movement to said shaft in a vertical direction whereby said plug, biased by said spring, plugs said intervening slot for locking said mounting device onto said rail and whereby upon continued rotation of said member said shaft moves in a vertical direction against said biased spring so that said plug moves out of said slot, thereby unlocking said mounting device from said rail.