Rotating Blade Card Holder with RFID Shielding
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Solution Overview
Problem
Conventional card-holding devices, such as wallets, often lack a compact and efficient design for storing multiple cards, and they may not provide adequate protection against RFID scanning.
Innovation Solution
A card-holding device featuring a housing with RFID-blocking material, a plurality of blades that can rotate relative to each other and the housing, each blade having a sleeve with side rails and a retaining member to secure cards, and a fastener system allowing blades to fan out for easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple cards are stored in a conventional wallet, then card storage capacity is improved, but device size and complexity increase
Solution Approach 1:
The wallet is divided into multiple independent blades, each capable of rotating independently relative to the housing and each other. Each blade contains a sleeve for holding a card, allowing the wallet to store multiple cards while maintaining a compact form factor through segmented architecture.
Solution Approach 2:
The blades are designed to rotate relative to the housing and to each other, transforming the static card storage structure into a dynamic one. This rotational capability allows the blades to fan out for easy card access and then return to a compact stacked position, optimizing both storage density and accessibility.
2Object-affected harmful factors
If RFID-blocking material is added to protect against RFID scanning, then security is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The RFID-blocking material is integrated directly into the housing structure, merging the protective function with the structural component. This approach provides RFID protection without adding separate complex shielding components, thereby minimizing the increase in device complexity.
3Ease of operation
If a rotating blade mechanism is implemented for easy card access, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The rotating mechanism is segmented at the blade level, with each blade capable of independent rotation relative to the housing. This segmentation allows simple rotational movement for card access without requiring a complex centralized locking or actuation system.
Solution Approach 2:
The blades are designed to rotate freely relative to the housing without requiring external actuation mechanisms. The rotational capability is inherent in the blade-housing connection, allowing users to easily fan out or close the blades through simple manual movement without complex controls.
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
The device offers a compact and efficient way to store multiple cards, provides protection against RFID scanning, and allows for easy access and retrieval of cards through the rotating blade mechanism.
Implementation Method 1
The housing includes an RFID-blocking material
Data Source
AI summary
Examples of the disclosure include a card-holding device having a housing, a plurality of blades, and at least one fastener. Each blade includes a sleeve to receive a card. Each sleeve includes at least one side rail at a respective edge of the sleeve, and at least one retaining member to exert a force on the card against the at least one side rail. The at least one fastener is coupled to the housing and the plurality of blades to enable each blade of the plurality of blades to rotate relative to each other and the housing.