EXTENSION UNIT, ADJUSTMENT STRUCTURE, AND SEAT FRAME
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United States of America Patent
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Issued Date -
Aug 22, 2024
app pub date -
Jun 7, 2022
filing date -
Jun 7, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A seat frame includes: a base including a transverse support rod and a longitudinal support rod; an elevation unit including a support, a first elevation rod, a second elevation rod, and a connecting piece; an extension unit including a base plate, a lifting unit, a foot adjustment unit, and a backrest adjustment unit, where the base plate being fixed to the connecting piece; and a power unit disposed on the base and separately connected to the elevation unit and the extension unit, where the power unit includes a drive unit, a connecting base, and a drive connecting rod, a first end of the drive unit is hinged to the base, and a second end of the drive unit is hinged to the connecting base.
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