Progressive brake lining wear sensor

Details Progressive brake lining wear sensor Progressive brake lining wear sensor

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 66/02 (2006.01) F16D 66/00 (2006.01)

Patent

CA 2353291

A progressive brake lining wear and temperature sensor having a plurality of parallel arranged spaced apart resistors in connection with a sensing circuit. Each resistor is mounted onto a PC board which in turn is encapsulated within a single molding. A thermistor is also mounted onto the PC board within the molding to sense lining temperature. The thermistor is connected to a ground lead. The ground lead, resistance lead and thermistor lead emerge from the encapsulated sensor for connection to the sensing circuit. The sensor is disposed within the brake lining and is connected to the brake shoe by a securement clip. As the brake lining progressively wears, the resistors are progressively worn away thus changing the overall resistance of the sensor. The change in resistance indicates state of wear. Preferably, three resistors are employed to indicate four degrees of brake lining wear.

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