Card-Accommodating Back Cover With Sliding Pocket
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Solution Overview
Problem
Existing card-containing back covers for mobile information terminals face issues with card fixation, durability, and appearance degradation due to exposed cards and sliding mechanisms.
Innovation Solution
A card-containing back cover design featuring a card-containing pocket on the outer surface with a sliding mechanism and a card removal hole, allowing easy insertion and removal of cards without exposing them, and incorporating an electromagnetic wave intercepting sheet for added strength and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an IC card is contained in a pocket disposed on the outer surface of a back cover, then the card can be accessed easily, but the appearance of the back cover may be degraded due to exposed card
Solution Approach 1:
The card is nested within a recessed pocket structure in the back cover, allowing the card to be contained while maintaining a smooth, integrated appearance. The pocket is formed by recessing portions of the back cover, creating a nested configuration where the card sits flush with the cover surface.
Solution Approach 2:
A card holder or insert is introduced as an intermediary element between the card and the back cover surface. This intermediary structure allows the card to be securely held while preventing direct exposure, mediating between accessibility and appearance requirements.
2Ease of operation
If a card container is disposed between two plates with sliding mechanism, then the card can be inserted and removed, but the structure is more likely to lack strength and durability
Solution Approach 1:
The sliding mechanism is extracted and replaced with a simple pull-out design. The card holder is made removable as a single unit, eliminating the need for complex sliding plate mechanisms while maintaining ease of card access and improving structural integrity.
Solution Approach 2:
The card holder is segmented from the main back cover structure, allowing it to be removed as a separate component. This segmentation enables easy card access while the main cover retains its full structural strength, as the card holder is a separate modular element rather than an integrated sliding mechanism.
3Device complexity
If the IC card or electromagnetic wave intercepting sheet is not fixed to the cover, then the structure is simpler, but the card or sheet may fall when inserted or removed
Solution Approach 1:
The card holder is pre-attached to the back cover structure before card insertion. This preliminary attachment ensures the card is securely held from the outset, preventing falls during insertion or removal operations while maintaining relative structural simplicity.
Solution Approach 2:
The card holder serves as an intermediary fixation mechanism between the card and the back cover. This intermediary structure provides reliable card retention without requiring complex fixation mechanisms, balancing simplicity and reliability.
4Ease of operation
If the card is exposed through an opening in the pocket, then the card can be accessed, but the appearance of the back cover is degraded
Solution Approach 1:
The card is nested within a recessed pocket that is flush with the back cover surface, creating a seamless appearance. The pocket is formed by recessing portions of the cover, allowing the card to be contained without creating visible openings or protrusions that would degrade appearance.
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 design ensures cards are securely contained, preventing falls and appearance degradation, while maintaining strength and durability without requiring complex sliding mechanisms.
Implementation Method 1
an electromagnetic wave intercepting sheet capable of intercepting an electromagnetic wave from the mobile information terminal
Data Source
AI summary
[Problem] Provided is a card-containing back cover that has excellent strength and appearance and that a card can be easily inserted into and removed from.[Solving Means] A card-containing back cover configured to be mounted on a back face of a mobile information terminal includes a cover body configured to be mounted on the mobile information terminal and a card-containing pocket disposed on an outer surface of the cover body and configured to be capable of containing a card by sliding the card. A card removal hole is provided in the cover body at a position covered by the card-containing pocket, and the card removal hole is formed such that the card contained in the card-containing pocket can be slid through the card removal hole and removed from the card-containing pocket.