Abstract: An adjuster is provided for a restraint system having a belt which extends through the adjuster and includes a free end and another end or fastening end which is adapted to be secured to an object. The adjuster allows adjustment of the length of the belt between the adjuster and the fastening end. The adjuster includes a frame having a base member with an opening. The opening defines a first or edge plate and a second or securement plate. The first plate and the opening define a belt engaging edge. A clamping member is pivotally mounted between upright side flanges, the clamping member includes a pivoting lever and a load bar having a clamping edge, and a resilient spring member which urges the clamping member to rotate the clamping edge toward the belt engaging edge of the frame.

Abstract: The present invention provides a buckle and frame for a restraint system resisting to a harsh environment. The buckle comprising a frame having a base wall, the base wall includes a debris exit opening; and a cover which encloses the frame and forms at least one vent opening and at least one passage which couples the debris exit opening to the vent opening. Debris, dust and other foreign objects which find there way into the buckle are not necessarily trapped but rather are presented with a means of exiting the buckle via the vent opening.

Abstract: A fastener for a restraint system. The restraint system is preferably intended to be used in a vehicle with a lower anchor. The fastener includes a clip having longitudinal axis, with a hook end and a strap attachment end, the hook end having a curved portion defining a hook and an opening to the hook for receiving the lower anchor. A cover is slidably secured to the clip, the cover slidable relative to the clip along the longitudinal axis, between a closed position and an open position, wherein with the cover in the open position, the hook opening is exposed, and with the cover in the closed position the hook opening is closed by the cover. With the cover in the open position the fastener may hooked or unhooked to the lower anchor, and with the cover in the closed position, a lower anchor located in the hook will be locked within the hook. The fastener may also include a lock for locking the cover in the closed position and the open position.