Multiple sitting position chair

Solution Overview

Problem

Conventional chairs have static elements, limiting users to a single sitting position, which can lead to discomfort and decreased performance due to prolonged sitting in the same position.

Innovation Solution

A reconfigurable chair design featuring a base, seat, backrest, and side-mounted rests with hinges that allow for multiple sitting positions through adjustable height, tilt, and rotation of the backrest and side rests, enabling over 10 different sitting and resting configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional chairs use static elements with single sitting position, then structural simplicity is maintained, but user comfort and performance deteriorate due to prolonged sitting in the same position

Engineering Contradiction:

Improvesitting position variabilityVSAvoidchair structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The chair incorporates multiple movable components including a backrest that rotates around a first axis, side mounted rests that rotate around a second axis, and height adjustment mechanisms. These dynamic elements allow the chair to transition between multiple sitting positions (standard sitting, reclining, side resting, etc.), directly resolving the contradiction by enabling position variability while maintaining reasonable structural complexity through systematic use of hinges and pivots

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The chair is divided into independent functional segments: the seat, the backrest (coupled via first hinge), the side mounted rests (coupled via second hinge), and the base. Each segment can move independently around different axes, allowing complex positioning capabilities to be achieved through simple, modular components rather than a single complex mechanism

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If conventional chairs provide only height adjustment and lumbar support control, then manufacturing simplicity is maintained, but adaptability deteriorates as users cannot change sitting positions

Engineering Contradiction:

Improvesitting position variabilityVSAvoidmanufacturing complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The chair incorporates multiple movable components including a backrest that rotates around a first axis, side mounted rests that rotate around a second axis, and height adjustment mechanisms. These dynamic elements allow the chair to transition between multiple sitting positions (standard sitting, reclining, side resting, etc.), directly resolving the contradiction by enabling position variability while maintaining reasonable structural complexity through systematic use of hinges and pivots

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The side mounted rests serve multiple functions: they can be positioned to provide arm support, leg support, or back support depending on the user's needs. The same structural element (side rest with second hinge) performs various supportive roles, increasing adaptability without proportionally increasing manufacturing complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11717089B2Multiple sitting position chair

Publication Date: 2023.08.08 LOST LUGGAGE ID LTD

AI summary

A reconfigurable chair includes features that open up new sitting and resting positions for the user. The chair includes rotatable lateral side rests and a tilt adjustable back rest which when reconfigured, provide auxiliary resting platforms to support the body in different sitting and resting positions. The backrest may include a rotatable feature so that the backrest may be moved from an upright position to a flat position adding another level of support. A height adjustment mechanism may adjust the height of the backrest to add to the reconfigurability of the chair.