Patent ID: 8616080
Filing Date: 2013-12-31
Classification: B64C,B64D,F16H,Y10T

Abstract:
1. An actuator including: a housing; a worm gear mounted in the housing for rotation; a rotary input member mounted in the housing for rotatably driving the worm gear; and a shuttle supported in the housing for movement by loads acting on the actuator from a disengaged position allowing free rotation of the rotary input member to an engaged position engaging the rotary input member, wherein when in the engaged position, the shuttle is configured to be moved axially relative to the rotary input member by continued rotation of the rotary input member so that a stop on the shuttle moves from an ambush position allowing free rotation of the rotary input member to a blocking position preventing further rotation of the rotary input member, wherein during an overload, the worm gear is configured to displace axially relative to an output member to contact the shuttle, thereby causing the shuttle to engage the rotary input member.