Adjustable Seat With Active Backrest Elements For Spinal Mobilization
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Solution Overview
Problem
Existing seats fail to effectively mobilize the user's back, particularly in static positions like those in motor vehicles, leading to fatigue and tension due to lack of natural movement.
Innovation Solution
A seat with adjusting elements in the backrest and seat cushion that perform lifting movements perpendicular to the user's contact surface, coordinated to simulate walking motion, combined with massaging elements for enhanced spinal column mobilization and relaxation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the user remains in a static seated position, then the user can maintain a stable posture, but the back becomes fatigued and tense due to lack of movement
Solution Approach 1:
The patent applies dynamics by transforming the static seat into an active system that generates periodic lifting movements. Multiple adjusting elements in the backrest are controlled to move sequentially, creating a wave-like motion pattern that dynamically mobilizes the user's back and pelvis, counteracting fatigue while maintaining postural stability
Solution Approach 2:
The patent implements periodic action through cyclic lifting movements of the adjusting elements. The control system activates elements in a repeating sequence, creating rhythmic motion that simulates natural walking patterns. This periodic stimulation promotes blood circulation and prevents muscle stiffness without requiring continuous user input
2Ease of operation
If adjusting elements are added to the backrest to mobilize the user's back, then back movement is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the backrest into multiple zones with independent adjusting elements positioned at different heights and locations. Each element can be controlled individually or in groups, allowing localized mobilization of specific back regions. This segmented approach enables complex mobilization patterns using simpler individual components
Solution Approach 2:
The adjusting elements serve multiple functions: they provide lumbar support, enable mobilization movements, and can be controlled in various patterns to address different user needs. The same hardware infrastructure supports multiple operational modes, reducing the need for separate systems for different functions
3Ease of operation
If the adjusting elements perform lifting movements to simulate walking motion, then natural movement is restored, but the risk of transmitting unwanted movement to the steering wheel increases
Solution Approach 1:
The patent applies local quality by positioning adjusting elements specifically in the backrest and seat cushion areas that contact the user's back and pelvis, while deliberately excluding the steering wheel area. The lifting movements are localized to the seating surface, creating mobilization effects without transmitting force to the steering wheel or upper body control areas
Data Source
AI summary
A seat having a backrest and a seat cushion includes rows of adjusting elements, respectively, which adjusting elements are arranged above one another, on both sides of the longitudinal center plane of the seat. By alternately applying the adjusting elements mutually arranged in a vertically staggered manner in the two halves of the seat, a rotational movement can be actively applied to a seat user's back and possibly pelvis, which rotational movement corresponds to the rotational movement of the back, and possibly of the pelvis, when walking.