This invention relates to a brake lining wear sensor which produces an audible warning signal when a brake friction lining wears to a predetermined thickness.
State and Federal regulations may soon require vehicles to include warning devices to warn a vehicle operator of a worn brake friction lining condition. Previous audible lining wear sensors have utilized electronic circuitry to produce an audible signal. Other sensors have required complicated sensor or brake pad structure or attaching methods to retain the sensor in the required position in the brake assembly. Therefore, it is desirable for a lining wear sensor to have a simple structure. It is also desirable that such a sensor be adapted for use in existing standard production brake components.