Portable Chair with Multi-Surface Clamp System for Secure Attachment
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Solution Overview
Problem
Existing portable chairs lack adaptability, safety features, and functionality for a wide range of users, including infants, children, and adults, particularly in various environments and seating conditions.
Innovation Solution
A portable chair design featuring a base assembly with dual clamps, a back assembly, arm rests, a kickstand, and a tray assembly, along with a removable canopy and pouch, utilizing fabric connectors like VELCRO for secure attachment and storage, allowing for versatility and ease of use across different surfaces and environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a portable chair is designed with multiple attachment features (clamps, straps, kickstand) for different surfaces, then adaptability to various environments is improved, but device complexity increases
Solution Approach 1:
The portable chair incorporates multiple attachment mechanisms (front clamps, rear clamps, kickstand, armrest clamps) that enable the same chair to be securely attached to various surfaces including bleachers, benches, tables, and chairs. This multi-functional attachment system allows a single chair design to serve multiple environments without requiring separate specialized chairs for each surface type.
Solution Approach 2:
The attachment system is divided into separate, independent components: front clamps for forward attachment, rear clamps for backward attachment, kickstand for ground attachment, and armrest clamps for table attachment. Each component can be independently activated or deactivated based on the specific attachment needs, allowing flexible configuration without requiring all attachment features to be present simultaneously.
2Reliability
If safety features like clamps and straps are added to secure the chair, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The clamps and straps are designed to be dynamically adjustable during operation. The front and rear clamps can be opened and closed to engage or disengage from the surface, the kickstand can be deployed or retracted, and the armrest clamps can be activated. This dynamic design allows the chair to transition between different attachment states, providing secure fixation when needed while maintaining ease of reconfiguration.
3Adaptability or versatility
If multiple removable components (canopy, tray, pouch) are included to enhance functionality, then adaptability is improved, but device complexity increases
Solution Approach 1:
The removable components are designed to nest within each other or within the chair structure when not in use. The canopy can be folded and stored within the chair frame, the tray can be detached and placed in the storage pouch, and the pouch itself can be compressed to fit within the chair's storage compartments. This nesting arrangement allows multiple functional components to be integrated into a compact portable unit without significantly increasing the overall size or complexity.
Data Source
AI summary
A portable chair includes a base assembly comprising a base frame and a seat cushion fit to the base frame, a back assembly operatively connected to the base assembly, a first set of clamps operatively connected to a front of the base assembly and configured to extend downwardly therefrom to secure the portable chair to a surface, and a second set of clamps operatively connected to a back of the base assembly and configured to extend downwardly therefrom to further secure the portable chair to the surface. The chair may further include a canopy which may be secured at both ends, a removable pouch, a removable head rest, a removable tray, and retractable legs. The chair may include a kickstand and may include additional sets of clamps for attaching to different surfaces. Fabric connectors may be used through the portable chair and accessories.