| 摘要 |
A self-adjustment mechanism for a brake system includes a first sprag clutch seated in a support. An eccentric serves as an inner race for the first sprag clutch and as an outer race for a second sprag clutch. A timing assembly serves as an inner race for the second sprag clutch and includes first and second spaced-apart pins projecting from a surface. An arm is pivotally connected to the timing assembly and positioned between the pins. A brake apply cam engages a first end of the arm so that it pivots with respect to the timing assembly. As the arm pivots, a brake apply piston is engaged. A pivot center of the arm is selectively rotated by the eccentric to maintain the phase relationhip of the cam and the brakepack as the plates wear.
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