Control pull-bar structure of chair adjusting device
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United States of America Patent
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-
Jan 21, 2025
Grant Date -
Aug 22, 2024
app pub date -
Mar 31, 2023
filing date -
Feb 22, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A chair adjusting device includes a control pull-bar including an elongate plate assembly formed of multiple elongate plates and a short plate assembly formed of multiple short plates. The elongate plates have a movement hole and a pivot hole opposite to the movement hole, and connecting protrusions at one side the pivot hole and connecting dimples on a back side of the connecting protrusions. Separator plates are interposed between the elongate plates and have combination projections receivable into the connecting dimples and combination notches on a back side and receiving the connecting protrusions therein. The short plates have engaging projections at one side thereof, and engaging troughs on a back side. Partition plates are interposed between every two pieces of the short plates. The partition plates have fitting bulges receivable into the engaging troughs and on a back side and receiving the engaging projections therein.
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