Adjustable Lumbar Support Frame for Holistic Chair Back Flexing
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Solution Overview
Problem
Existing lumbar supports for chairs often fail to provide adjustable and ergonomic support that accommodates various body types and sitting positions, as they primarily focus on localized adjustments rather than holistic adjustments to the chair back and seat, and are not discreetly integrated into the chair's design.
Innovation Solution
An adjustable lumbar support system featuring a frame with flexing and control zones that allows for vertical and horizontal adjustments, incorporating wish-boned shaped supports and various adjusting mechanisms like ratchet or pneumatic assemblies, which can alter the entire chair back and seat to accommodate different users without being visible through a mesh back.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional lumbar supports are used, then localized lumbar support is provided, but the chair back cannot be holistically adjusted and the support is not discreetly integrated
Solution Approach 1:
The patent merges the lumbar support function with the chair back structure itself. The chair back includes integrated support surfaces that directly provide lumbar support without requiring separate adjustable components. This combining approach achieves holistic adjustability while maintaining a discreet, integrated appearance without adding device complexity.
Solution Approach 2:
The chair back structure serves multiple functions simultaneously: it provides the primary seating support, incorporates lumbar support capabilities, and enables holistic adjustment. The integrated design allows the same structure to perform both aesthetic (discreet appearance) and functional (adjustable lumbar support) roles.
2Reliability
If adjustable lumbar support mechanisms are added, then lumbar support is improved, but the chair back becomes visible through mesh and aesthetics are compromised
Solution Approach 1:
The lumbar support function is merged into the chair back's primary structure rather than being added as a separate visible component. The support surfaces are integrated into the mesh or material of the chair back itself, ensuring that the aesthetic appearance is maintained while lumbar support effectiveness is provided through the same structural elements.
3Adaptability or versatility
If localized lumbar support adjustments are made, then spinal support is provided, but ergonomic comfort for various body types is not achieved
Solution Approach 1:
The chair back provides universal ergonomic accommodation by designing support surfaces that naturally conform to various spinal contours. The holistic adjustment capability allows the entire chair back to be modified, enabling it to adapt to different body types and sitting positions without requiring complex localized adjustments for each user.
Data Source
AI summary
An adjustable lumbar support for a chair back having a frame with a top end and a bottom end. The frame has a series of flexing zones and a series of control zones. The adjustable lumbar support for a chair back further includes a support having a first end and a second end. The first end of the support is adapted to engage the top end of the frame. The lumbar support also includes an adjusting means adapted to adjust the support in a vertical plane for flexing of the frame and the chair back in a horizontal plane. The adjusting means is also adapted to engage the second end of the support and adapted to engage the bottom end of the frame. The frame is mounted to the chair back.