Office chair with adaptive comfort adjustment structure

By incorporating a lumbar support component and an elastic backrest support component into the office chair, the main body of the backrest can be adjusted adaptively, solving the problem of disconnected lumbar support, improving the fit and comfort of the backrest, and relieving lumbar fatigue.

CN122440002APending Publication Date: 2026-07-24ZHEJIANG SUNON FURNITURE MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SUNON FURNITURE MFG
Filing Date
2026-06-01
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing office chairs cannot keep up with the user's body tilting left and right, resulting in a lack of lumbar support, poor support fit, and fatigue after prolonged use.

Method used

Design an office chair with an adaptive comfort adjustment structure. By setting a lumbar support component and an elastic support component on the main body of the chair back, including a lumbar support component with torsion springs and tension springs, and setting deformation texture on the main body of the chair back, the chair back can achieve synchronous deflection and adaptive adjustment, provide reverse elastic support force, and adapt to lumbar support for different sitting postures.

Benefits of technology

The main body of the chair back can rotate synchronously with the user's movements, maintaining a close fit and support to the human back, improving the support and fit in the full sitting position, relieving lumbar fatigue, and improving comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an office chair with a self-adaptive comfort adjusting structure, which comprises a seat body, a back body, a waist following assembly and a back elastic supporting assembly. The bottom end of the back body is slidably connected to the seat body. The waist following assembly is used to provide a reverse elastic supporting force to the waist area of the back body, so as to self-adaptively adjust the supporting position of the waist area of the back body. In the application, the back elastic supporting assembly is arranged, and the back elastic pieces in the back elastic supporting assembly can elastically support the left and right sides of the back body. When a user adjusts the sitting posture by tilting the body leftward and rightward, the back body will be synchronously deflected along with the action of the user, the back elastic pieces are synchronously deformed correspondingly, the fitting and supporting state of the back body and the human back is always kept, the problem that the back body is out of supporting connection is avoided, the fitting degree in the full sitting posture state is effectively improved, and the waist fatigue feeling is reduced.
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