Driving Apparatus for Swing Door
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United States of America Patent
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Issued Date -
May 2, 2024
app pub date -
May 30, 2023
filing date -
Oct 27, 2022
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Abstract
An embodiment driving apparatus for a swing door includes a drive shaft that is linearly movable, a drive casing rotatably disposed around the drive shaft, and a conversion mechanism configured to convert a linear movement of the drive shaft into a rotational movement of the drive casing, wherein the conversion mechanism includes a first spiral groove provided in an exterior surface of the drive shaft, a second spiral groove provided in an interior surface of the drive casing, and a plurality of balls interposed between the first spiral groove and the second spiral groove.
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