Push rod and plate assembly for brake actuators and method of forming same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 29, 2001
Grant Date -
N/A
app pub date -
Aug 24, 1999
filing date -
Aug 24, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brake actuator having an improved push rod and end plate assembly which eliminates the requirement for thread adhesive and avoids deformation of the exterior surface of the push rod. The push rod includes an axial internally threaded bore through one end and the shank portion of the mounting screw includes an unthreaded intermediate portion adjacent the threaded end portion having a plurality of radial lobes which are turned into the internally threaded bore of the push rod securely retaining the end plate to the push rod under vibration loading and extreme temperature conditions. The radial lobes on the intermediate portion of the mounting screw each include an arcuate spiral lead surface and a flat generally radial following surface which requires only a relatively small torque to secure the end plate to the push rod, but a significantly larger torque to unthread the mounting screw from the push rod.
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