Elastic Card Holder Structure for Secure Multi-Card Access
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Solution Overview
Problem
Existing card holders are inconvenient for managing multiple cards, leading to difficulty in placement and retrieval, and cards often fall out due to bumps, causing unnecessary trouble.
Innovation Solution
A card holder with a first and second clamping plate connected by elastic displacement devices, allowing the plates to stretch and retract, accommodating various cards, and featuring elastic restoring force for secure clamping and blocking devices to prevent cards from falling out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cards are placed in the card holder, then the card holder can accommodate various cards, but the cards may easily fall out due to bumps
Solution Approach 1:
The card holder employs dynamic clamping plates connected by elastic displacement devices that can automatically adjust and move. When bumps occur, the elastic components allow the clamping plates to move and absorb the impact, maintaining card security while accommodating various card sizes and thicknesses
Solution Approach 2:
The elastic displacement devices change the physical state and position of the clamping plates in response to external forces. The elastic components store and release energy, dynamically adjusting the clamping force to prevent cards from falling out while adapting to different card dimensions
2Adaptability or versatility
If many cards are placed in the card holder, then various cards can be managed, but it becomes inconvenient to place and take out cards
Solution Approach 1:
The dynamic clamping mechanism allows cards to be easily inserted by simply pushing them in, which automatically triggers the elastic displacement devices to move the clamping plates and secure the cards. This eliminates the need for complex manual adjustment while managing multiple cards of various sizes
3Device complexity
If the card holder structure is made simple, then it is convenient to carry, but it may not provide sufficient card accommodation and security
Solution Approach 1:
The card holder is divided into a body and movable clamping plates as separate functional segments. This segmentation allows the simple body structure to remain portable while the added clamping plates provide enhanced card accommodation and security through elastic displacement mechanisms
Solution Approach 2:
The dynamic elastic displacement devices add functionality without significantly increasing structural complexity. The clamping plates move elastically to accommodate cards securely, providing adaptability while maintaining a relatively simple overall structure that remains convenient to carry
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 solution provides a simple, cost-effective, and durable design that allows easy accommodation and retrieval of multiple cards while preventing them from falling out, ensuring convenience and structural integrity.
Implementation Method 1
the card holder body further includes elastic pieces arranged on the card holder body, and the elastic pieces provide an elastic restoring force to the first card clamping plate and the second card clamping plate to restore from an open position to an initial position
Data Source
AI summary
The present invention provides a card holder including a card holder body. The card holder body includes a first and second card clamping plates; at least one connecting device is arranged between the first and second card clamping plates, and the first and second card clamping plates are connected through the at least one connecting device. Each connecting device includes two hinged connecting pieces. The connecting pieces are closed and opened to produce a relative displacement between the first and second card clamping plates, thus forming an internal variable space to accommodate a plurality of cards; the card holder body further includes an elastic piece arranged on the card holder body, and the elastic piece provides an elastic restoring force through which the first card clamping plate and the second card clamping plate can be restored from an open position to an initial position.