Dual-Hinged Spring Assembly for Dynamic Seating

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Solution Overview

Problem

Current seating solutions fail to adequately incorporate movement, which is recognized as essential for cognitive development and comfort, particularly for children and adults, as they often restrict natural physical movement leading to reduced cognitive performance and increased occupational injuries.

Innovation Solution

A dual-hinged spring assembly comprising elastomeric arcs with upward and downward ends connected by a hinge, allowing for cyclic compression and vertical rocking motion when secured to a surface, providing a range of amplitudes and frequencies for comfort and cognitive enhancement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional seating solutions are used, then structural stability is maintained, but movement capability is restricted

Engineering Contradiction:
Improvestructural stabilityVSAvoidmovement capability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent applies the dynamics principle by transforming the static seating structure into a dynamic system using dual-hinged springs. These springs enable cyclic motion and rocking movements while maintaining structural integrity, allowing the seat to adapt to user movement needs without compromising stability. The spring mechanism provides controlled motion within defined parameters, resolving the contradiction between stability and movement capability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent utilizes parameter changes by adjusting the amplitude and frequency of the spring mechanism to provide varying degrees of movement. The dual-hinged springs can be configured to produce different motion characteristics, allowing the seating system to transition between more stable and more dynamic states based on operational requirements, thus balancing structural stability with movement capability.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If fixed seating structures are used, then manufacturing simplicity is maintained, but cognitive development support is reduced

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidcognitive development support
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the spring mechanism into dual-hinged components that can be manufactured separately and then assembled. This modular approach maintains manufacturing simplicity while creating a complex dynamic system that supports cognitive development through movement. The segmented spring assembly allows for easier production and assembly compared to monolithic dynamic structures.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If movement is incorporated into seating, then cognitive function is enhanced, but device complexity increases

Engineering Contradiction:
Improvecognitive function enhancementVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the merging principle by combining the upper and lower spring arcs with hinge connections to create an integrated dual-hinged spring assembly. This unified structure provides the necessary movement for cognitive function enhancement while reducing the number of separate components compared to alternative designs. The merged spring system delivers complex motion capabilities through a relatively simple integrated mechanism.

Inventive Principle:
Principle #5Merging (Combining)

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 dual-hinged spring assembly promotes cognitive abilities and comfort by allowing natural movement, reducing occupational injuries and enhancing ergonomic seating, while also providing a calming effect for infants and potentially benefiting pregnant individuals.

Implementation Method 1

two elastomeric arcs including an upper arc having downward ends, and a lower arc having upward ends, the upward ends of the lower arc being movably connected to the downward ends of the upper arc, thereby forming an ovoid spring. Further, when the lower arc is secured against a supporting surface, pressure against the upper arc causes the dual-hinge spring to compress.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8720871B2Dual-hinged spring
Publication Date: 2014.05.13 STERN HEZI
  • US8720871B2 patent drawing
  • US8720871B2 patent drawing
  • US8720871B2 patent drawing

AI summary

A dual-hinged spring assembly. One assembly comprises two elastomeric arcs including an upper arc having downward ends, and a lower arc having upward ends, the upward ends of the lower arc being movably connected to the downward ends of the upper arc, thereby forming an ovoid spring. Further, when the lower arc is secured against a supporting surface, pressure against the upper arc causes the dual-hinge spring to compress.