| 摘要 |
<p>A hand brake actuator for a rail car has a rotary input (30) connected to a rotary output by a transmission including a clutch (104,106) and a gear wheel and pawl (84), a declutching mechanism (120) for disengaging the clutch (104,106) in a declutched position of the declutching mechanism (120), and a release handle (130) with a first cam (178) which drives the declutching mechanism (120) to the declutched position when the release handle (130) is moved from an apply position to a release position. The first (178) or a second cam engages and retains the declutching mechanism (120) in a declutched position after the release handle (130) is removed from the release position. A follower (220) is connected to the first (178) or second cam and is responsive to the rotation of the input (30) in an apply direction to rotate the first (178) or second cam in a second direction opposite the first direction to release the declutching mechanism (120) and allow the clutch (104,106) to reengage.</p> |
