Chair backrest elevation angle adjusting structure

Through the combined structure of push rod, disc and push-out piece, the elevation angle adjustment of the chair backrest is realized, which solves the problem of complex adjustment structure and inconvenient operation in the prior art, and realizes compact and simple elevation angle adjustment, meeting personalized needs .

CN119488211APending Publication Date: 2025-02-21ZHONGSHAN GUOJING FURNITURE CO LTD
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Patent Information

Application Number
CN202411908934.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-02-21

AI Technical Summary

Technical Problem

The existing chair backrest adjustment structure is difficult to achieve simple, compact and easy-to-operate elevation adjustment, and cannot meet the personalized needs of different users.

Method used

The combined structure of push rod, disc and push plate is adopted. By rotating the disc, the push rod push rod to push the push plate, so that the elevation angle of the backrest is adjusted. The structure is simple, with the push rod and the disc forming an eccentric structure, and the deformation of the push plate allows the elevation angle of the backrest to be gradually adjusted.

Benefits of technology

It realizes flexible adjustment of the backrest elevation angle, compact structure and simple operation, meets the personalized needs of different users and reduces fatigue on the back and waist.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an elevation angle adjusting structure for a chair backrest. The elevation angle adjusting structure comprises a cushion, a backrest, a push rod and a pushing and unfolding sheet, the backrest is hinged to the cushion through a pin shaft, the whole pushing and unfolding piece is splayed, the tail end of the pushing and unfolding piece is fixedly connected to the cushion, and the head end of the pushing and unfolding piece is movably connected to the backrest; a disc is arranged in the cushion, the head end of the push rod is hinged to the edge of the disc to form an eccentric structure, and the tail end of the push rod is fixedly connected to the middle of the pushing and unfolding piece. The disc is rotated to drive the pushing and unfolding piece to move through the push rod, the pushing and unfolding piece is pushed by the push rod to move towards the backrest, the pushing and unfolding piece is stressed and deformed to enable the head end and the tail end to be gradually separated, and the backrest is pushed to tilt through the head end of the pushing and unfolding piece. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.
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