MULTI-STAGE LINKAGE INTERLOCKING STRUCTURE OF SWING DINING CHAIR
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United States of America Patent
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Issued Date -
Mar 4, 2021
app pub date -
Aug 13, 2020
filing date -
Aug 26, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A multi-stage linkage interlocking structure of a swing dining chair comprising a swing arm and a chair body. The chair body comprises a seat and a backrest. A multi-stage included-angle adjustment device is arranged between the seat and the backrest. The swing arm is provided with a mounting base, and the seat is rotatably connected with the mounting base. A first locking device is arranged between the seat and the mounting base for locking the seat. The seat is provided with a second locking device for locking the first locking device. A sliding connection rod in linkage with the backrest is provided for unlocking the second locking device. A third locking device in linkage with the mounting base and interacting with the multi-stage included-angle adjustment device is arranged between the seat and the mounting base. The present disclosure has a simple structure, achieves convenient operation and safety, and avoids mal operation.
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