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US 2017/0044805 A1Published application
Latch actuator and method of actuating a latch
AssigneeSchukra Geratebau AG
InventorsRüdiger Deppe, Joachim Carl, Maxime Samain, Gunter Maierhofer
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Abstract
A latch actuator comprises a motor, a speed reduction gearing coupled to an output shaft of the motor, a spindle, and a motion conversion mechanism. The spindle has a threaded portion in engagement with the speed reduction gearing. The spindle is supported to be rotatable about an axis. The threaded portion is rotationally fixed relative to the spindle. The motion conversion mechanism is configured to cause a displacement of the spindle along the axis when the spindle rotates.
Claims15
A latch actuator, comprising:
- a motor;
- a speed reduction gearing coupled to an output shaft of the motor;
- a spindle having a threaded portion in engagement with the speed reduction gearing, the spindle being supported to be rotatable about an axis, said threaded portion being rotationally fixed relative to the spindle;
- and
- a motion conversion mechanism configured to cause a displacement of the spindle along the axis when the spindle rotates.
2 more elements
A method of actuating a latch, the method comprising:
- energizing a motor of a latch actuator to rotationally drive a spindle of the latch actuator, the spindle being coupled to the latch,
- wherein a motion conversion mechanism displaces the spindle along a rotation axis of the spindle when the spindle is rotated.
Dependencies are inferred from the claim text.