Adjustable Seat Back Profile With Lockable Spine Alignment
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Solution Overview
Problem
Standard seats with non-adjustable back profiles can lead to spine aches and deformations, and existing adjustable seats are either complex and costly or limited in profile adjustment capabilities, failing to accommodate occupants with pathological spinal profiles effectively.
Innovation Solution
A seat with an adjustable back support portion featuring a core column and holders that can rotate and lock in multiple planes, utilizing elastic elements and spacers for adjustable profiling, allowing for precise alignment with the occupant's spine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If standard seats with non-adjustable back profiles are used, then the construction is simple, but the seating comfort deteriorates and spine deformations may occur
Solution Approach 1:
The back support is divided into multiple holders that can be independently positioned along the core column, allowing each segment to be adjusted to match the spinal profile while maintaining overall structural simplicity
Solution Approach 2:
The holders are designed to be movable along the core column and rotatable around axes, enabling dynamic adjustment of the back profile to accommodate different spinal shapes and positions, then locked in place for stable support
2Ease of operation
If seats with adjustable back profile are used to improve seating comfort and correct spine deformations, then the seating comfort improves, but the device complexity increases
Solution Approach 1:
The back support is divided into multiple holders that can be independently positioned along the core column, allowing each segment to be adjusted to match the spinal profile while maintaining overall structural simplicity
Solution Approach 2:
The holders can be manually adjusted and locked into position without requiring complex motorized systems or central controllers, making the adjustment mechanism simple and self-contained
3Adaptability or versatility
If existing adjustable seats with multiple segments are used, then the profile adjustment capability improves, but the device complexity and cost increase
Solution Approach 1:
Each holder serves multiple functions: it can be positioned at different heights along the core column, rotated around an axis to adjust the angle, and locked in place, eliminating the need for separate adjustment mechanisms for each function
Solution Approach 2:
The back support is divided into multiple holders that can be independently positioned along the core column, allowing each segment to be adjusted to match the spinal profile while maintaining overall structural simplicity
4Adaptability or versatility
If seats with adjustable back profile are used to correct spine deformations, then the adaptability to pathological profiles improves, but the device complexity increases
Solution Approach 1:
The holders are designed to be movable along the core column and rotatable around axes, enabling dynamic adjustment of the back profile to accommodate different spinal shapes and positions, then locked in place for stable support
Solution Approach 2:
The back support is divided into multiple holders that can be independently positioned along the core column, allowing each segment to be adjusted to match the spinal profile while maintaining overall structural simplicity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a simple, cost-effective means to adjust the seat profile in multiple planes, improving seating comfort and correcting spinal deformations by ensuring a correct seating position, which enhances physiological functions.
Implementation Method 1
The profile locking means may comprise an elastic element extending through the plurality of holders and having ends fixed to locking elements located next to terminal holders of the plurality of holders, wherein at least one locking element allows shortening of the elastic element between the locking elements, such as to tighten the coupling between the holders.
Data Source
AI summary
A seat comprising a back support portion (100) with adjustable surface profile, comprising an adjustable core column (101) arranged along the height direction of the back support portion (100) and comprising a plurality of holders (110, 210, 211, 310, 410) and a plurality of side members (120, 220, 221, 320, 420) fixed to the holders (110, 210, 211, 310, 410) and extending substantially in the width direction of the back support portion (100) such as to profile the surface of the back support portion (100). It further comprises profile locking means (130) coupled with a plurality of holders (110, 210, 211, 310, 410) and adjustable to an unlocked configuration, in which the holders (110, 210, 211, 310, 410) are individually rotatable around a plurality of axes and the profile of the surface of the back support portion (100) is adjustable and to a locked configuration, in which the holders (110, 210, 211, 310, 410) are fixed still with respect to each other and the profile of the surface of the back support portion (100) is locked.