Abstract: A single inertia sensing pendulum is employed to operate a transfer link which in turn provides sequential or simultaneous actuation of first and second pawls associated respectively with the ratchet plates carried by first and second reels. A mounting end of the transfer link is mounted by a trunnion arrangement which permits both pivotal movement about the mounting end and rolling movement about the longitudinal axis of the transfer link. An operating end of the transfer link has first and second abutment portions spaced each side of the longitudinal axis for respective engagement with the first and second pawls. The inertia sensoring pendulum engages the transfer link intermediate the mounting end and the operating end and pivotally raises the transfer link in response to vehicle deceleration.