Folding Chair with Integrated Holders for Stackable Transport
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Solution Overview
Problem
Existing folding chairs are difficult to carry multiple units simultaneously due to lack of integrated securement mechanisms, leading to potential unfolding and loss during transport, and require separate, often bulky and expensive accessory devices for support.
Innovation Solution
A stackable and connectable folding chair design featuring integrated holders and straps that allow multiple chairs to be securely connected and carried together, with holders positioned to prevent obstruction and facilitate easy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If folding chairs are carried in a folded configuration without integrated securement mechanisms, then the chairs occupy minimal space, but the chairs are difficult to grip and may unfold while being carried
Solution Approach 1:
The patent integrates multiple functions into the chair structure itself: the frame serves both as structural support and as the securing mechanism for stacking chairs. The integrated design combines storage, securing, and carrying functions into a unified system, eliminating the need for separate accessory devices.
Solution Approach 2:
The chair structure provides its own securing mechanism through the frame design that allows chairs to be stacked and locked together without external accessories. The frame's geometry and connection points enable self-securing when chairs are nested, making the system self-sufficient for transport.
2Reliability
If separate accessory attachment devices are used to facilitate transport of folding chairs, then the chairs can be secured for transport, but the accessory devices are bulky, difficult to maneuver, and expensive
Solution Approach 1:
The patent eliminates separate accessory devices by integrating the securing function directly into the chair frame. The frame includes built-in connection points and structural features that allow chairs to secure to each other without external brackets, adapters, or attachment devices.
Solution Approach 2:
The chair frame serves multiple functions: structural support during use, stacking mechanism during storage, and securing mechanism during transport. This multi-functionality eliminates the need for specialized accessory devices that would add complexity and cost.
3Reliability
If separate accessory attachment devices are used to facilitate transport of folding chairs, then the chairs can be secured for transport, but the accessory devices may be easily lost and are not permanently attached to the folding chair
Solution Approach 1:
The securing mechanism is merged with the chair frame structure itself, making it a permanent, non-detachable feature. The frame's design inherently provides the securing function, eliminating the risk of loss associated with separate accessory devices.
4Ease of operation
If holders are integrated with the folding chair, then the holders prevent loss and facilitate convenient access during folding and stacking, but the holders must be positioned to not obstruct regular use of the folding chair
Solution Approach 1:
The holders are positioned at specific locations on the frame where they provide securing functionality without interfering with the chair's operational areas. The local placement optimizes both accessibility for stacking and non-obstruction during regular chair use.
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.