Folding Chair Holder Design for Stackable Multi-Chair Transport
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Solution Overview
Problem
Existing folding chairs are difficult to carry multiple at once due to their folded configuration, which can be hard to grip and may unfold during transport, and current solutions like wagons are bulky, hard to maneuver, and expensive.
Innovation Solution
A stackable and connectable folding chair design that includes integrated holders allowing multiple chairs to be connected and carried together in a folded configuration using straps, ensuring secure transport without the need for additional bulky vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If folding chairs are carried in a folded configuration, then they occupy less space and are easier to transport, but they are difficult to grip and may unfold during carrying
Solution Approach 1:
Multiple folding chairs are merged together through the holder mechanism to form a single transport unit. The holder connects to the frame of adjacent chairs, binding them together so they can be carried as one assembly, solving both the space efficiency and ease of carrying problems simultaneously.
Solution Approach 2:
The holder acts as an intermediary device between multiple chairs and the user's hands. Instead of gripping individual chairs directly, the user grips the holder which in turn secures multiple chairs together, making the transport of folded chairs easier and more secure.
2Reliability
If multiple folding chairs are secured using individual straps, then each chair can be carried, but it is difficult or impossible to effectively secure multiple chairs together at the same time
Solution Approach 1:
The holder merges the securing function for multiple chairs into a single device. Instead of using separate straps for each chair, the holder provides a unified securing mechanism that binds multiple chairs together, reducing complexity while maintaining or improving security.
Solution Approach 2:
The holder serves multiple functions simultaneously: it connects multiple chairs together, provides a gripping point for carrying, and maintains the folded configuration. This multi-functionality eliminates the need for separate securing devices for each chair.
3Ease of operation
If accessory attachment devices are added to folding chairs, then transport and storage facilitation is improved, but these devices are separate components that are difficult and expensive to acquire and assemble, and may be easily lost
Solution Approach 1:
The holder is merged with the chair frame structure itself, becoming an integrated component rather than a separate accessory. This integration prevents loss, eliminates assembly requirements, and reduces the number of discrete parts while maintaining transport facilitation functionality.
Solution Approach 2:
The holder is permanently attached to the chair frame, providing self-service transport capability without requiring additional components or assembly. The chair itself becomes its own transport device through the integrated holder, eliminating the need for external accessories.
4Ease of operation
If attachment devices are permanently attached to the folding chair, then convenience and prevention of loss is improved, but they may obstruct or interfere with regular use of the folding chair
Solution Approach 1:
The holder is positioned at a specific location on the chair frame (attached to the rear leg frame) where it does not interfere with the seating function. This localized placement ensures the holder provides transport convenience while maintaining full adaptability for regular chair use.
Solution Approach 2:
The holder is designed as a separate module attached to the chair frame, allowing it to be functionally segmented from the seating area. This segmentation enables the holder to serve transport purposes without obstructing the chair's regular use, as it is positioned and structured to avoid interference with the seat and backrest.
Data Source
AI summary
A folding chair including holders for stacking and connection of multiple chairs to each other is provided. Each folding chair includes a back support member pivotally connected to a seat member, front and rear leg frames pivotally connected proximal to front ends and rear ends of opposing side bars of the seat member, respectively, and arm rests pivotally connected to opposing side bars of the back support member. The folding chair includes one or more first and second holders operably attached to the back support member and the rear leg frame, respectively. Using the first and second holders, the folding chair is connectable to another folding chair and in turn to another folding chair(s) to form a connected stack of folding chairs that can be carried and transported by a user.