Foldable Chair Transport With Shrouded Rollers and Adjustable Height
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hobbyists face discomfort due to the lack of adjustable and comfortable seating at classes, and struggle with transporting heavy sewing machines and supplies, as conventional chairs are often too low and uncomfortable, and lack the ability to easily convey loads.
Innovation Solution
A foldable chair with adjustable height, cushioned seating, and rollers that can convert into a rolling transport mode, equipped with a carrying case for sewing machines and supplies, featuring pivotable legs for compact storage and low-friction wheels for easy movement, and a handle for easy pulling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional fixed-height chair is used, then the structure is simple and stable, but the chair is uncomfortable when the table height does not match the seat height
Solution Approach 1:
The chair incorporates an adjustable-height mechanism with a telescoping column that allows the seat height to be dynamically changed between two positions, enabling the user to adapt the chair height to match different table heights and maintain comfort throughout the day
2Ease of operation
If a comfortable cushioned chair is used, then the seating comfort is improved, but the weight of the chair increases making it difficult to transport
Solution Approach 1:
The chair is designed with separable components including a removable cushion and a detachable footrest platform, allowing the user to disassemble parts of the chair for easier transport while maintaining full comfort when assembled
Solution Approach 2:
The chair uses lightweight materials and an optimized structural design that reduces overall weight while maintaining comfort, and the cushion density can be adjusted to balance comfort and weight requirements
3Weight of moving object
If a lightweight chair structure is used, then the chair is easy to transport, but the structural strength decreases making it unstable
Solution Approach 1:
The chair frame combines lightweight aluminum tubing with strategically placed wooden cross-braces and a particle board platform, creating a composite structure that maintains strength and stability while keeping the overall weight manageable for portability
4Ease of operation
If the chair is designed for comfort with large cushion, then the seating comfort is improved, but the compactness for storage and transport decreases
Solution Approach 1:
The cushion is designed as a separate removable component that can be detached and stored independently, allowing the chair frame to be collapsed into a compact configuration for storage while maintaining full cushion comfort when assembled for use
Solution Approach 2:
The footrest platform and other components are designed to nest within or attach to the main chair structure, maximizing space utilization and enabling compact storage when the chair is not in use
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
Provides a comfortable and adjustable seating solution for extended periods while allowing easy transport of sewing machines and supplies, facilitating movement and storage in compact spaces.
Implementation Method 1
a plurality of legs each with a roller secured to the distal end
Implementation Method 2
The second end of the column is secured to the first platform or cushioned seat and the cushioned seat houses at least one telescoping shaft with a handle for use when the foldable chair is in the rolling transport configuration
Data Source
AI summary
A foldable chair, operable between a seating configuration and a rolling transport configuration, the foldable chair comprising a plurality of legs with a roller secured to the distal end of each leg and the proximal end of each leg secured to a column base. Extending from the column base is a column with a first and second end, the column first end secured to the column base and the second end of the column secured to a first platform or seat cushion. A second platform extends downwardly from the first platform for attaching a carrying case. Also included is a backrest rotatably secured to the first platform such that when the backrest is perpendicular to the first platform two roller elements are fully shrouded. When the backrest is rotated 90 degrees and disposed substantially parallel to the seat cushion the roller elements are exposed for rolling contact with the ground surface.