Locking and restraining cargo in an aircraft

Claim 1

A locking dog for restraining cargo in the cargo space of aircraft comprising: a frame for connection to bottom structure of the aircraft cargo space; a locking member with a hook and nose-like projection pivoted on the frame about a first pivot axis, pivoting permitting an upright position of the locking member as well as a fold down position; an actuator flap pivoted on the frame about a second pivot axis, being spaced from the first pivot axis and provided for pivoting to assume an upwardly stationary extended position and into a retracted and fold down position; bar means pivotally linked to the locking member eccentrically to the first pivot axis, the bar means being articulated to the actuator flap at a point of articulation; and tension spring means connected to the actuator flap and to the locking member at connect points eccentric to the first and second pivot axes, so that a dead center position is defined as said point of articulation at the bar means and the actuator flap which point of articulation may pass the dead center position while the actuator flap is pushed down whereupon the spring means tends to hold the locking member in a retracted position while tending to place the locking member into an upright locking position as long as said point of articulation has not passed the dead center position.