Slim Case Wallet with Stretchable Sleeve and Magnetic Access
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Solution Overview
Problem
Existing portable electronic device cases are either too bulky to fit easily in pockets or purses, and they often require two hands to access personal items, with rigid compartments or ribbons that can break or become entangled, failing to provide a sleek and adaptable solution for carrying and accessing multiple items.
Innovation Solution
A slim case wallet design featuring a stretchable sleeve attached to a portable electronic device with a wooden backing piece and elastomeric bumper, allowing one-handed access to personal items without flaps or doors, using a semi-open bottom and sewn tacks to secure the sleeve, eliminating common failure points like broken ribbons or glued ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If rigid compartments are integrated into the case, then personal items can be stored, but the case becomes bulky and requires two hands to access items
Solution Approach 1:
The patent uses a flexible magnetic sheet instead of rigid compartments. The magnetic sheet can be bent and manipulated with one hand, allowing users to access personal items while maintaining a slim case profile. The flexibility of the magnetic material enables easy opening and closing without requiring two hands.
Solution Approach 2:
The patent extracts the rigid compartment structure and replaces it with a flexible magnetic attachment system. This removes the bulk associated with rigid compartments while maintaining the functionality of storing and accessing personal items.
2Ease of operation
If ribbons are used to eject personal items, then one-handed access is enabled, but the ribbons can break or become entangled
Solution Approach 1:
The patent replaces the mechanical ribbon system with a magnetic field-based system. Instead of using a physical ribbon that can break or entangle, the magnetic sheet uses magnetic attraction and release to eject items. This eliminates the mechanical failure modes of ribbons while maintaining one-handed operation capability.
Solution Approach 2:
The patent changes the operational parameter from mechanical pulling (ribbon) to magnetic attraction/release. By adjusting the magnetic field strength, items can be easily attached or detached without physical contact, improving reliability while enabling one-handed use.
3Length of moving object
If the case is made slim to fit in pockets, then portability is improved, but personal item storage capacity is reduced
Solution Approach 1:
The flexible magnetic sheet can be folded or layered to provide adequate storage capacity within a slim profile. The thin-film nature of the magnetic material allows it to maintain a thin case design while still accommodating multiple personal items through flexible arrangement.
Solution Approach 2:
The flexible magnetic sheet can dynamically adjust its configuration to maximize storage capacity within the limited space of a slim case. Users can fold or arrange the magnetic sheet to accommodate different numbers and sizes of personal items.
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 case wallet provides a slim, durable, and adaptable solution for carrying and accessing personal items with one hand, maintaining device protection and aesthetic appeal, while being cost-effective and easily adaptable to different device models without the need for custom injection molds.
Implementation Method 1
easelystomeric bumper surrounding the outer, backside edge of the casing for cushioning the handheld electronic device
Implementation Method 2
a stretchable sleeve to carry personal items
Data Source
AI summary
A case wallet for a handheld electronic device such as a cellphone includes a device casing, a wooden backing piece and a stretchable sleeve. The wooden backing piece and the stretchable sleeve are permanently adhered to a back wall of the device casing, such that the stretchable sleeve is capable of holding credit cards, folded currency or other personal items.