US Patent 7874774 Vehicle cargo arrangement

A vehicle cargo arrangement has a track with an elongated slot and a tie-down assembly. The tie-down assembly includes a tie-down fitting, a retainer coupled to the tie-down fitting to selectively retain the tie-down fitting to the track, and a blocking part. The blocking part is movably coupled with respect to the tie-down fitting between a blocked orientation and an unblocked orientation. The tie-down assembly is removable from the track by rotational movement when the blocking part is in the unblocked orientation. However, the tie-down assembly is not removable from the track by the rotational movement when the blocking part is in the blocked orientation.