Customizable Card Wallet With Interchangeable Spring-Loaded Bodies
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Solution Overview
Problem
Conventional wallets become unwieldy when holding multiple credit and identification cards, and simple card wallets have limited capacity and fixed dimensions, failing to accommodate a range of cards effectively.
Innovation Solution
A customizable card wallet design featuring a rectangular top plate with a window opening, a bottom plate with relief channels for internal springs, and an interchangeable U-shaped card body, allowing for adjustable capacity and appearance by using removable fasteners and interchangeable card bodies of different thicknesses and colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a conventional wallet is used to hold multiple credit and identification cards, then the card capacity is improved, but the wallet becomes unwieldy and bulky
Solution Approach 1:
The wallet is divided into modular components including a top plate, bottom plate, and interchangeable card bodies that can be stacked. This segmentation allows users to build capacity incrementally by adding only the card bodies needed, rather than carrying a large fixed-size wallet.
Solution Approach 2:
The wallet utilizes the thickness dimension by stacking multiple card bodies of varying thicknesses between the top and bottom plates. This vertical stacking approach allows high card capacity while maintaining a compact footprint in length and width.
2Volume of moving object
If a simple card wallet is used to reduce size, then the wallet compactness is improved, but the card capacity is limited and fixed
Solution Approach 1:
The wallet transitions from a static fixed-capacity design to a dynamic configurable system where card bodies can be added, removed, or swapped. The spring mechanism dynamically adapts to different card body thicknesses, automatically adjusting to maintain proper card retention force.
Solution Approach 2:
The top plate, bottom plate, and spring mechanism serve as universal components that work with multiple different card body types and thicknesses. This multi-functionality allows a single wallet frame to accommodate various capacity and configuration needs.
3Ease of manufacture
If a fixed-thickness card wallet is used, then the manufacturing simplicity is improved, but the adaptability to different card quantities is worsened
Solution Approach 1:
The wallet is manufactured as separate modular components (top plate, bottom plate, springs, card bodies) that can be produced independently using standard manufacturing processes. This segmentation maintains manufacturing simplicity while enabling post-assembly customization through stacking different card body combinations.
4Reliability
If internal springs are added to urge cards against the top plate, then the card retention is improved, but the wallet thickness increases
Solution Approach 1:
The springs are designed as thin, flat elements that flex within the constrained space between the bottom plate and card bodies. This flexible spring design provides reliable card retention force while minimizing the thickness increase of the overall wallet structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables flexible accommodation of multiple cards, displaying the top card through a window and accommodating various accessories, while maintaining a slim profile and allowing for customization of card capacity and appearance.
Implementation Method 1
a substantially rectangular bottom plate having a pair of oppositely disposed relief channels at the periphery thereof for receiving a pair of oppositely disposed internal springs
Implementation Method 2
upon insertion of at least one credit or identification card within the interior pocket, the internal springs urge the at least one card against the top plate interior facing surface
Data Source
AI summary
A customizable card wallet accommodates a plurality of credit and identification cards. The wallet comprises a substantially rectangular top plate having a window opening in the central portion thereof, a substantially rectangular bottom plate having a pair of oppositely disposed relief channels at the periphery thereof for receiving a pair of oppositely disposed internal springs, and a substantially U-shaped card body interposed between the top and bottom plates, thereby defining an interior pocket. Upon insertion of at least one credit or identification card within the interior pocket, the internal springs urge the at least one card against the top plate interior facing surface.