APPARATUS FOR ENSURING OR ENCOURAGING THE WEARING OF SAFETY BELTS IN VEHICLES

摘要

The invention provides a warning device which is operable by a driver or any of his passengers in a vehicle failing to fasten their safety belts, to limit the throttle opening of the vehicle engine to a predetermined maximum, which may be zero i.e. the idling condition. There is further provided a system in which the warning device is rendered inoperative by means of a switch associated with the driver's seat and so arranged that when the driver assumes an abnormal seating position on the seat this switch renders the warning device inoperative. There is also provided a system in which a further switch is associated with a safety belt, which further switch is sensitive to whether or not at least part of that safety belt is approximately in a predetermined position, whereby if a user is not wearing the belt in a normal position the switch will operate the warning device.