| 摘要 |
A brake ( 10 ) for a wheel of a vehicle is slidably mounted to a vehicle frame by mounting sleeves ( 22 ). The brake ( 10 ) includes a stationary actuator ( 20 ) which has a plurality of depressions ( 38 ) adapted to receive a plurality of balls ( 40 ). The stationary actuator ( 20 ) further has a pin hole ( 34 ) which receives a pin ( 36 ) which correspondingly defines a pivot axis ( 50 ). Adjacent to the stationary actuator ( 20 ) is a rotating actuator ( 66 ) which rotates about an axis ( 50 ) and includes a plurality of depressions ( 78 ) which are axially aligned with the depressions ( 38 ) while in an un actuated state. The brake ( 10 ) is actuated by rotation of the rotating actuator ( 66 ) which correspondingly moves the balls ( 40 ) to progressively more shallow portions of the depressions ( 38, 78 ) which acts upon a washer ( 82 ) and one or more shims ( 86 ) to force a first stator ( 16 ) and a second stator ( 18 ) together and into contact with a rotor ( 12 ). The stators ( 16, 18 ) are biased apart by the bridge springs ( 90 ) and are axially located by a pair of bridge sleeves ( 30 ) such that the axes of the bridge sleeves ( 30 ) are coplanar with the axis ( 50 ).
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