Adjustable Lumbar Support Design for Enhanced Comfort
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Summary
Problems
Existing seat lumbar support systems, particularly belt-type lumbar supports, face challenges in efficient assembly, economy, and comfort, as they often require complex connections and direct pressure on the spine, which can be uncomfortable.
Innovation solutions
A seat support panel connected to opposite sides of the seat through fixtures, operated by an actuator with a Bowden cable tensioning element, featuring a recessed center channel bounded by planar side plates and extensions, allowing for adjustable stiffness and comfort through varying design features.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a belt lumbar support uses a traction cable to pull the belt taut, then the lumbar support can be adjusted to provide tension, but the belt does not arch and the assembly complexity increases
Why choose this principle:
The lumbar support is divided into separate functional elements: a rigid support structure with arching capability, a flexible belt component, and a Bowden cable actuation system. This segmentation allows each component to perform its specific function independently, resolving the contradiction between achieving tension force and reducing assembly complexity.
Principle concept:
If a belt lumbar support uses a traction cable to pull the belt taut, then the lumbar support can be adjusted to provide tension, but the belt does not arch and the assembly complexity increases
Why choose this principle:
The Bowden cable acts as an intermediary mechanism between the actuator and the belt lumbar support. It transmits the actuating force while allowing the belt to arch naturally, thereby providing tension adjustment without requiring complex direct connection mechanisms between the actuator and the support structure.
Application Domain
Data Source
AI summary:
A seat support panel connected to opposite sides of the seat through fixtures, operated by an actuator with a Bowden cable tensioning element, featuring a recessed center channel bounded by planar side plates and extensions, allowing for adjustable stiffness and comfort through varying design features.
Abstract
A seat support includes a panel that is connected to opposite sides of the seat through a pair of fixtures and is operated by an actuator that is connected to at least one of the fixtures. The panel includes a recessed center channel that is bounded by flat side plates and that has apertures extending across the channel. The panel can be made from a single piece of material and may also include top and bottom extensions.