| 摘要 |
A mechanical caliper type disc brake is disclosed for vehicles such as trucks and trailers where high torque ratings are required. The brake structure of the invention is employed for applying frictional braking forces to opposite braking surfaces of a rotatable rotor. The brake structure includes a pair of friction pads disposed on opposite sides of the rotor, caliper means providing support for at least one of the friction pads, lever means having spaced apart action and reaction lobe portions, and pivot means for pivotally supporting the lever means at a location between the action and reaction lobe portions whereby when the lever means is moved about the pivot means, the action lobe portion thereof urges one of the friction pads to move in one direction to frictionally engage one side of the rotor and simultaneously the reaction lobe portion thereof urges the caliper and the other of the friction pads to move in an opposite direction causing the friction pad to frictionally engage the other side of the rotor.
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