Over-the-road vehicle automatic slack adjuster
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United States of America Patent
Stats
-
Oct 1, 1985
Grant Date -
N/A
app pub date -
Nov 28, 1983
filing date -
Nov 28, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic slack adjuster for over-the-road vehicle brakes is adapted to be mounted between the brake chamber and brake operating shaft, for example an operating shaft known as an S cam shaft. The slack adjuster includes a body having a lever arm pivotally mounted thereto, which lever arm is connected to the brake chamber through a brake operating rod. A drive member is fixed onto the brake operating shaft and is movably positioned within the body. There is an adjustable connection between the lever arm and the drive member for adjusting the relationship between the drive member and body in response to the body movement required for a brake application. The adjustable connection provides for incremental adjustment and includes a spring compressed by movement of the lever arm when slack is sensed during brake application and providing the energy to cause slack adjusting relative movement between the drive member and body during brake release.
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