POWER SWING DOOR ACTUATOR
First Claim
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.
1 Assignment
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Accused Products
Abstract
In an aspect, a swing door actuation system is provided for moving a door about a vertical axis between open closed positions relative to a vehicle body. The system includes a housing connectable to one of the swing door and the vehicle body, an extensible member that moves relative to the housing, and connects to the other of the swing door and the vehicle body, a motor connected to a gear train that is non-backdrivable, and a normally engaged clutch. The motor is operatively connected to a clutch input end through the gear train. The output end is operatively connected to the extensible member. The clutch is disengageable to disconnect the motor from the extensible member. The clutch has a slip torque that is sufficiently high to prevent movement of the door when the door is exposed to less than a selected external torque and the motor is stopped.
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Citations
13 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification