Abstract: A vehicle seat belt buckle has a flat tongue part with latching edges, and a socket part with spaced parallel plates defining a socket within which the tongue can be received. A latch member slides at right angles to the plane of the tongue to engage the latch formations to retain the tongue within the socket, the movement being imparted by latch member portions received in grooves of a push botton slidably guided for manual movement in the direction of insertion of the tongue. A spring urged detent retains the push button and thus the latch member in the release positions and is itself released by a portion of an ejector device when this is moved inwardly in the socket on insertion of the tongue. In a modification a spring biassed ejector prevents return of the latch member to its latching position after release of the tongue.

Abstract: An adjustable seat belt anchorage, particularly for the upper end of the shoulder belt of a vehicle seat belt system, comprises a channel-shaped track along which a carriage having a loop or other means for attachment of a seat belt is slidable. The track has a series of notches which are engageable by a protruding rib on the carriage. For adjustment, the carriage is rockable about an axis perpendicular to the direction of sliding movement to release the rib from engagement with the notches. A torsion spring acting between the carriage and the track biasses the rib and notches into engagement and the engagement is enhanced by the tension in the belt during use.

Abstract: An adjustable seat belt anchorage, particularly for the upper end of the shoulder belt of a vehicle seat belt system, comprises a channel-shaped track along which a carriage having a loop or other means for attachment of a seat belt is slidable. The track has a series of notches which are engageable by a protruding rib on the carriage. For adjustment, the carriage is rockable about an axis perpendicular to the direction of sliding movement to release the rib from engagement with the notches. A torsion spring acting between the carriage and the track biasses the rib and notches into engagement and the engagement is enhanced by the tension in the belt during use.