Chair Base Stacking Ring to Reduce Cardboard Waste in Shipping
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Solution Overview
Problem
The existing methods for shipping chair bases are inefficient due to excessive use of cardboard boxes, which result in unnecessary waste, extra weight, and unused space, while also failing to adequately protect the bases during transport.
Innovation Solution
A modified chair base configuration that allows for stacking without cardboard boxes, using a hub and arms design where the bottom of one chair base fits into the top of another, secured with plastic wrap, and optionally with a stacking ring to prevent lateral movement and rotation, enabling efficient and stable shipping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chair bases are shipped in cardboard boxes, then the bases are protected during transport, but excessive weight, waste, and unused space are generated
Solution Approach 1:
The patent removes the cardboard box from the shipping system entirely, extracting the protective function and transferring it to the chair base itself through the stacking ring mechanism. The stacking ring is a minimal component that enables direct stacking without requiring external packaging, thus eliminating cardboard waste while maintaining protection.
Solution Approach 2:
The chair base is designed to be self-protecting through its own structure. The stacking ring integrates with the chair base geometry, allowing the base to protect itself and other bases during shipping without relying on external cardboard packaging. The design makes the chair base its own packaging solution.
2Reliability
If chair bases are shipped in cardboard boxes, then the bases are protected during transport, but extra weight is added to the shipment
Solution Approach 1:
The cardboard box is extracted from the system, removing its weight burden. The protective function is transferred to the chair base stacking mechanism, which adds minimal weight compared to the bulky cardboard packaging.
Solution Approach 2:
The chair base stacking ring provides self-protection without requiring external heavy packaging. The stacking ring is a lightweight component that enables the chair base to protect itself, eliminating the need for weighty cardboard boxes.
3Reliability
If chair bases are shipped in cardboard boxes, then the bases are protected during transport, but unnecessary cost is incurred
Solution Approach 1:
The cardboard box is removed from the system, eliminating the cost associated with purchasing, transporting, and disposing of cardboard packaging. The protective function is achieved through the integrated stacking ring design.
Solution Approach 2:
The chair base stacking mechanism provides self-protection without requiring external paid packaging services. The stacking ring is either integrated into the chair base or is a minimal separate component, eliminating the need for costly cardboard packaging.
4Loss of substance
If chair bases are stacked directly without boxes, then waste and weight are reduced, but the bases may shift and fall over during transport
Solution Approach 1:
The stacking ring acts as an intermediary component between chair bases during stacking. It provides a mechanical interface that prevents lateral movement and rotation, ensuring stability without requiring external cardboard boxes. The stacking ring mediates the interaction between adjacent bases to maintain stack integrity.
Solution Approach 2:
The stacking ring introduces asymmetric geometric features (protrusions and recesses) that prevent rotation and lateral movement. This asymmetric design creates a stable stacking configuration where bases can only be positioned in the correct orientation, preventing shifting and falling over during transport.
5Reliability
If cardboard boxes are used for shipping, then space is utilized for protection, but a lot of empty space is left unused
Solution Approach 1:
The cardboard box is extracted from the system, removing the empty space it creates. The chair bases stack directly together with minimal gaps, maximizing the utilization of shipping container volume and eliminating the wasted space that occurs when irregularly shaped bases are placed in rectangular boxes.
6Stability of the object's composition
If a stacking ring is added to prevent lateral movement, then stability is improved, but device complexity increases
Solution Approach 1:
The stacking ring serves multiple functions simultaneously: it prevents lateral movement, prevents rotation, and enables direct stacking without external packaging. This multi-functionality reduces the need for multiple separate components or complex mechanisms, keeping the overall device complexity low while achieving high stability.
Solution Approach 2:
The stacking ring is designed to nest within the geometry of the chair base, integrating smoothly with the existing structure. This nesting approach minimizes the added complexity by using the existing chair base features as part of the stacking mechanism, rather than adding bulky external components.
Data Source
AI summary
A stacking ring for a chair base may be disposable between a first and second chair base such that the stacking ring generally prevents lateral movement of the first chair base relative to the second chair base. The stacking ring may be integrally formed to the chair base, or separate and disposable between at least two chair bases. The stacking ring may substantially prevent rotation of a first chair base relative to a second chair base.