Stackable Chair with U-Shaped Reinforcing Member for Space Reduction
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Solution Overview
Problem
Existing chairs occupy a large space when idle or being transported, reducing their use efficiency and increasing placement and transportation costs.
Innovation Solution
A chair design featuring a U-shaped reinforcing member with outward-expanding ends, allowing multiple chairs to be stacked efficiently by inserting the reinforcing member of one chair into another, along with adjustable leg pads for height adjustment and improved stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional chair structures are used, then the chair provides adequate support and stability, but the chair occupies a relatively large space when idle or transported
Solution Approach 1:
The reinforcing member is designed as a U-shaped structure with two ends that expand outward to form connecting portions. These connecting portions enable one chair to be nested within another by inserting the reinforcing member of one chair into the reinforcing member of another chair, allowing multiple chairs to be stacked vertically with minimal space occupation.
2Volume of moving object
If the reinforcing member is designed for stacking, then the placement space is reduced, but the structural complexity increases
Solution Approach 1:
The reinforcing member integrates multiple functions into a single component: it provides structural reinforcement for the chair seat, enables stacking capability through its U-shaped design with expanding ends, and facilitates connection between chairs. This merging of functions reduces the need for separate components while achieving both structural integrity and space-efficient stacking.
3Productivity
If multiple chairs are stacked, then storage and transportation efficiency is improved, but the stability of individual chairs may be compromised
Solution Approach 1:
The reinforcing member is pre-designed with a U-shape and expanding ends that form connecting portions, preparing the structure in advance for stacking operations. This preliminary design ensures that when chairs are stacked, the connecting portions can be easily inserted into one another, maintaining structural stability without requiring additional assembly steps or complex mechanisms.
Data Source
AI summary
A chair comprises a seat; two support legs; a back; and a reinforcing member. The two support legs are separated and arranged under the seat for supporting the seat; the reinforcing member is U-shaped with two ends, and the two ends of the reinforcing member respectively expand outward forming two connecting portions, a tail end of each connecting portion is connected to the bottom end of each support leg. The reinforcing member of a front chair is capable of being inserted into the reinforcing member of a rear chair, and the reinforcing member of the front chair is located above the reinforcing member of the rear chair; in this way, multiple chairs can be stacked one by one, thereby greatly reducing the placement space of the chairs.