Card Holder Pusher Mechanism for Dense Multi-Card Access

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Solution Overview

Problem

Traditional card holders often become cumbersome and damage cards when multiple cards are accommodated, requiring tedious adjustments and leading to poor user experience.

Innovation Solution

A card holder design with a rotatable card pusher, spring wire mechanism, and limiting block system that allows easy access and automatic resetting, along with stacked card tapes and pressure relief rollers for convenient card handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If multiple cards are accommodated in a traditional card holder, then the card holder can carry more cards, but the cards are likely to become bent due to mutual pressing and be damaged

Engineering Contradiction:

Improvenumber of cards accommodatedVSAvoidcard damage due to mutual pressing

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The card holder body is divided into multiple independent card slots separated by partition walls. Each card slot provides an independent space for accommodating cards, preventing mutual pressing between adjacent cards while maintaining compact structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the card holder are designed with different structural characteristics. The partition walls provide rigid separation to prevent card bending, while the card slots provide adequate space for card insertion and removal without excessive pressure.

Inventive Principle:

Principle #3Local quality

2Area of stationary object

If cards are arranged densely in a traditional card holder, then the card holder size can be reduced, but a user cannot smoothly enter the card holder for access to cards

Engineering Contradiction:

Improvecard holder sizeVSAvoidease of card access

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The card holder incorporates a movable card pusher that can be dynamically adjusted to push cards forward for easier access. This dynamic mechanism allows the card holder to maintain a compact size while providing smooth card retrieval operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

A card pusher is introduced as an intermediary mechanism between the user and the densely arranged cards. The card pusher facilitates card access by pushing cards forward, enabling smooth operation without requiring the user to directly manipulate tightly packed cards.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If cards are frequently taken out and put back in a traditional card holder, then the user can access cards as needed, but their positions need to be constantly readjusted to ensure that the cards can be returned smoothly

Engineering Contradiction:

Improvefrequency of card accessVSAvoidtime for card position readjustment

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The card holder is designed with a card pusher that automatically pushes cards back into position after retrieval. This self-service mechanism eliminates the need for manual card position readjustment, saving time during frequent card access operations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The card pusher is pre-configured to automatically push cards back into their proper positions after being taken out. This preliminary action of automatic card repositioning prevents the need for subsequent manual adjustments during frequent card access.

Inventive Principle:

Principle #10Preliminary action

4Area of stationary object

If a traditional card holder is designed with focus on fashion appearance and small size, then the aesthetic and portability requirements are met, but the internal structure provides limited space for smooth card access

Engineering Contradiction:

Improvecard holder sizeVSAvoidsmoothness of card access

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The card pusher mechanism is nested within the compact card holder body, utilizing the internal space efficiently. This nested design allows the card pusher to be integrated without significantly increasing the external dimensions, maintaining the small size while enabling smooth card access.

Inventive Principle:

Principle #7Nested doll (Nesting)

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

Facilitates easy access and retrieval of cards, reduces card damage, and enhances user experience by allowing quick identification and accommodation of multiple cards, while alleviating psychological stress.

Implementation Method 1

A spring wire is connected between the hook and the connecting hole

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

the situation that the card fails to be limited to fall down and then is damaged is avoided

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS20260090617A1Card holder with easy access to cards

Publication Date: 2026.04.02 DONGGUAN CASEKEY IND CO LTD

AI summary

The present disclosure relates to a card holder with easy access to cards. The card holder includes a card holder body, the card holder body is divided into a bottom plate and a face plate, a front side of the bottom plate is provided with the face plate by means of nuts, the bottom plate is provided with a first edge and a second edge, a top edge is connected between tops of the first edge and the second edge in an embedded manner, the top edge is rotatably provided with a card pusher, the card pusher has a mouth end and a wing end, and a front side of the wing end is provided with a plurality of pushing blocks.