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POWER SWING DOOR ACTUATOR

  • US 20140150581A1
  • Filed: 07/27/2012
  • Published: 06/05/2014
  • Est. Priority Date: 07/27/2011
  • Status: Active Grant
First Claim
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1. A swing door actuation system for moving a vehicular swing door about a substantially vertical axis, between an open position and a closed position relative to a vehicle body, the swing door actuation system comprising:

  • a housing connectable to one of the swing door and the vehicle body;

    an extensible member that is extendible and retractable relative to the housing, and is connectable to the other of the swing door and the vehicle body;

    a motor operatively connected to a gear train that is non-backdrivable; and

    a clutch having an input end and an output end, wherein the motor is operatively connected to the input end through the gear train, and wherein the output end is operatively connected to the extensible member, wherein the clutch is normally engaged so as to operatively connect the motor to the extensible member and wherein the clutch is disengageable so as to operatively disconnect the motor from the extensible member,wherein the clutch has a selected slip torque that is sufficiently high to prevent movement of the door when the door is exposed to an external torque that is less than a selected value and the motor is stopped.

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