| 摘要 |
An apparatus for adjusting the height of the upper fixing or guide fitting for the shoulder belt of a safety belt system, particularly in motor vehicles. The apparatus has a mechanism for automatically adjusting the vertical position of the fitting to the sitting position of the person who is to be strapped in, and there is the problem that a strict correlation between the setting of the seat in question and the vertical position of the associated fixing or guide fitting cannot take account of every combination of physical proportions and sitting positions to produce an optimum belt angle at which the belt meets the shoulder of the wearer. One reason for this is that even the associated columns or uprights of cars vary in their positions. In order to solve the problem of providing an apparatus of this kind which makes it possible to determine the optimum path of the shoulder belt independently of any given seat positions, there is proposed according to the invention an apparatus for sensing the belt in terms of at least one parameter of its effective connection to the wearer, and for initiating a reaction to the situation found. The apparatus may be constructed to sense the direction of travel of the belt, or to sense and measure the force with which the belt rests on the body of the occupant. |
