| 摘要 |
<p>Brake actuator which incorporates a screw and nut 32, 34 actuator mechanism whose lengthening is controlled by a screw and nut device with reversible pitch 44 and a one- way clutch 56 sensitive to the relative movement between the fixed body 20 and a control piston 24. The brake actuator incorporates an automatic device 68 which momentarily uncouples the actuator mechanism 32, 34 when the rotary moment (torque) of the nut 32 becomes excessive. The brake actuator also incorporates a manual device for resetting the automatic adjustment to zero.</p> |
