A rotary latch mechanism that includes at least one support plate that pivotally supports both a latch fork and a lock cam is disclosed. The lock cam is movable from a first position where the lock cam prevents rotation of the latch fork to a second position where the lock cam does not interfere with the movement of the latch fork. A spring is attached to the latch fork and the lock cam and extends between the latch fork and the lock cam, so that the spring biases the lock cam towards the first position while biasing the latch fork to a release position.