Rotational Card Holder Ejection Mechanism for Ergonomic Removal
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Solution Overview
Problem
Existing card holders with linear actuating movements are ergonomically unfavorable for manual use.
Innovation Solution
A card holder with a receiving device that allows multiple cards to be stacked directly, eliminating the need for individual pockets, and featuring a rotatable ejection mechanism mounted on a shaft for comfortable and efficient card removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If linear actuating movement is used for card removal, then the structure is simple, but the ergonomics are unfavorable
Solution Approach 1:
The patent applies the dynamics principle by changing the actuation mechanism from a linear movement to a rotational movement. The ejection means is mounted on a rotation axis and performs a rotational actuating movement when the user twists the card holder body, making the card removal operation more ergonomic and comfortable while maintaining reasonable structural complexity through the use of a straightforward rotational joint.
2Quantity of substance
If individual receiving pockets are provided for each card, then card organization is good, but space utilization is inefficient
Solution Approach 1:
The patent applies the merging principle by eliminating individual receiving pockets for each card and instead providing a single common interior space where multiple cards can be stacked directly against each other. This unified receiving space maximizes the utilization of the interior volume of the card holder, allowing more cards to be stored without the complexity of multiple separate pocket structures.
3Productivity
If receiving opening allows multiple cards to pass simultaneously, then card removal efficiency is improved, but control precision is reduced
Solution Approach 1:
The patent applies dynamics by using a rotational actuation mechanism that dynamically controls the ejection process. The rotation axis and rotational movement allow for controlled ejection of multiple cards simultaneously while maintaining precision through the rotational degree control, enabling the user to precisely control the ejection force and angle without compromising the efficiency of removing multiple cards at once.
Data Source
AI summary
A card holder for holding at least one card corresponding to a credit card format includes a receiving device with a receiving opening and interior. The at least one card can be received in the interior through the receiving opening. The cardholder further includes an ejector arranged in the interior and rotatable about a shaft. An actuator is connected to the ejector and is rotatable with the ejector about the shaft. The at least one card can be moved out of the interior through the receiving opening in response to an actuating movement of the actuator relative to the receiving device from an initial position to an output position.