Zero gravity chaise chair systems and method
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Solution Overview
Problem
Conventional zero gravity chairs are cumbersome and weighty due to complex mechanisms for recline and leg support, limiting their functionality and user experience.
Innovation Solution
A zero gravity chair system featuring a seat frame with arcuate bow members connected to rollers, allowing for smooth sliding and reclining motion, with a base connected to these rollers and an adjustable brake for varying positions, along with a rotatable table arm and motorized rollers for therapeutic incline adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional zero gravity chairs employ cams and pivot point elements for back and leg support, then the recline and leg support functions are achieved, but the device becomes complex and weighty
Solution Approach 1:
The patent replaces the conventional cam and pivot point mechanical system with a bow and roller system. The bow members with integrated rollers eliminate the need for separate cams and pivot points, simplifying the mechanical structure while maintaining the zero gravity recline and leg support functions. This substitution reduces the number of parts and assembly complexity.
Solution Approach 2:
The patent combines multiple functions into integrated components. The bow members serve dual purposes as both structural support elements and guides for the rollers, eliminating the need for separate cam mechanisms. The base structure integrates support for both the seat frame and leg rest through the roller-bow interaction, merging what were previously separate mechanical systems into a unified structure.
2Ease of operation
If conventional zero gravity chairs employ cams and pivot point elements, then the recline and leg support functions are achieved, but the chair becomes cumbersome and weighty
Solution Approach 1:
The patent replaces the heavy cam and pivot point mechanism with a lighter bow and roller system. The rollers moving along the curved bow paths provide the necessary mechanical advantage for recline and leg support without requiring the substantial mass of conventional cam mechanisms. This substitution significantly reduces the overall weight of the chair while maintaining functional performance.
Solution Approach 2:
The patent extracts and eliminates the heavy cam components from the system, retaining only the essential bow and roller elements needed to achieve zero gravity positioning. By removing the unnecessary cam mechanisms and pivot points, the design achieves weight reduction while preserving the core recline and leg support functions.
3Adaptability or versatility
If conventional zero gravity chairs use complex mechanisms, then recline and leg support functions are achieved, but the device becomes cumbersome
Solution Approach 1:
The patent creates a universal system where the bow and roller mechanism serves multiple functions simultaneously. The same bow-roller interaction provides both the recline function and the leg support function, eliminating the need for separate mechanical systems for each function. This multi-functionality reduces overall device complexity while maintaining adaptability.
Solution Approach 2:
The patent merges the recline mechanism and leg support mechanism into a single integrated system. The base structure, bow members, and rollers work together as a unified mechanism that simultaneously controls both the seat back recline and the leg rest positioning, reducing the number of independent mechanisms required.
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 system provides a lightweight, versatile, and user-friendly zero gravity experience with adjustable recline and table positioning, enhancing comfort and usability while reducing mechanical complexity.
Implementation Method 1
a first rolling guide connected to the first bow, a second rolling guide connected to the second bow
Data Source
AI summary
A zero gravity chaise chair includes a seat frame providing a head rest, a back, a bottom and a leg rest, a first bow member connected to one side of the seat frame, a second bow member connected to the other side of the seat frame, a first rolling guide connected to the first bow, a second rolling guide connected to the second bow, and a base connected to the first rolling guide and the second rolling guide. A motor may operate the first rolling guide to vary incline position of the seat frame. The motor may be algorithmically controlled to vary incline position of the seat frame such as to aid blood flow and minimize pressure points of a body positioned on the seat frame.