| 摘要 |
An operating rod is pivotally connected to a brake operating arm that rotates a conventional brakes-applying cam and the end of the operating rod extends beyond the pivotal connection to the brake operating arm. Slack adjustor mechanism in a housing on the brake operating arm includes a reciprocative member in a side compartment of the housing which member operates a pawl and ratchet means to take up slack in the brake. The side compartment is on the side of the housing that is away from the axle housing of the vehicle. The reciprocative member is connected to the extended end of the operating rod by a flexible tension member and is biased away from the extended end of the operating rod. Lost motion between the reciprocative member and the extended end of the operating rod determines the magnitude of the movement of the reciprocative member and thus determines the magnitude of the increments of slack adjustment.
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