Underframe with improved structure
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United States of America Patent
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Nov 8, 2022
Grant Date -
N/A
app pub date -
Jul 21, 2021
filing date -
Jul 23, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is an underframe with an improved structure. The underframe includes an underframe body, an operating handle, a reclining pull rope and a gas spring pull rope, a cushion back-and-forth moving mechanism being installed on the outer side of the underframe body, the operating handle being installed through a left outer wall of the underframe body at a lower end of the cushion back-and-forth moving mechanism, a backrest installed on a rear end of the underframe body through a backrest connecting rod; and a reclining elastic adjusting mechanism is arranged at a front end of an inner wall of the underframe body, a backrest angle adjusting mechanism is arranged at the inner wall of the underframe body on a right side of the reclining elastic adjusting mechanism, a cushion height adjusting mechanism is fixedly connected in the underframe body.
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