Abstract: In a safety belt system with a belt takeup pulley and a belt runner in which the belt is threaded, the runner has a cross-bar marking the ends, joined together, of the lengths of belt stretched across the user's hips and (slopingly) across his chest. In order to make certain that there is no chance of the size of two such belt lengths being changed by chance while driving or, more specially, stopping any such change in lengths taking place on a smash-up, the belt runner has a part acting as a locking member in the form of a guidepiece having two eyes placed on the two sides of the cross-bar of the runner and having the belt threaded through them. After pulling the belt tight, it is stopped from being moved by the guidepiece, the belt being gripped upon over its full breadth.

Abstract: A three-point safety belt system comprising a safety belt including a pelvis belt portion and a breast belt portion; means for rolling up the belt coupled to the belt; a passage ring on the belt wherein the passage ring divides the pelvis belt portion and the breast belt portion; and clamp means for engaging the pelvis belt portion and the breast belt portion, the clamp means having a first position for permitting the adjustment of the length of the pelvis belt portion and the breast belt portion and the clamp means having a second position adjacent the passage ring for clamping the pelvis belt portion with respect to the breast belt portion thereby preventing the change of lengths of the belt portions.