Electronic Device Access Panel With Bi-Directional Biasing

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Solution Overview

Problem

Existing electronic devices face issues with access panels or doors that are prone to damage or loss when detached, and often require two-handed operation for opening and closing, with manual locking mechanisms that can be cumbersome.

Innovation Solution

The implementation of bi-directional biasing elements that allow single-handed operation of access panels or doors, which remain attached to the device in an open position and automatically lock when closed, using a combination of lateral and rotational biasing forces and a hinge mechanism for seamless integration with the device's housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the access panel is removed or decoupled from the electronic device to access the card holder, then the card holder becomes accessible, but the access panel is prone to loss or damage

Engineering Contradiction:
ImproveAccess to card holderVSAvoidRetention of access panel
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A tether acts as an intermediary element connecting the access panel to the electronic device housing. This intermediary component allows the panel to be detached for access while preventing complete separation, thus avoiding loss or damage. The tether serves as a mediating structure that balances accessibility with retention.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a tether is used to retain the access panel when detached, then the panel is prevented from being lost, but the panel remains vulnerable to damage and operation becomes cumbersome

Engineering Contradiction:
ImproveRetention of access panelVSAvoidOperation of access panel
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The access panel system transitions from a static tethered connection to a dynamic hinge-based mechanism. The hinge allows the panel to rotate between closed and open positions, providing controlled movement that enhances ease of operation while maintaining secure attachment. The dynamic rotational capability replaces the limited flexibility of a tether.

Inventive Principle:
Principle #15Dynamics

3Reliability

If manual locking mechanisms are implemented on the access panel, then security is improved, but the operation requires two hands and becomes cumbersome

Engineering Contradiction:
ImproveSecurity of access panelVSAvoidOperation of access panel
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The hinge mechanism provides automatic locking and unlocking functionality without requiring manual intervention. When the access panel is closed, the hinge automatically engages to secure it; when opened, it automatically releases. This self-service mechanism eliminates the need for separate manual locks and enables single-handed operation.

Inventive Principle:
Principle #25Self-service

4Reliability

If the access panel is designed to remain attached via hinge mechanism, then loss and damage are prevented, but the mechanism complexity increases

Engineering Contradiction:
ImproveRetention of access panelVSAvoidHinge mechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The hinge mechanism merges multiple functions into a single integrated component: it provides rotational movement for opening/closing, automatic locking for security, and continuous attachment for prevention of loss. By combining these functions into one mechanism rather than separate components, the overall complexity is reduced while maintaining reliability.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2755084B1Access panels for electronic devices
Publication Date: 2018.03.07 BLACKBERRY LTD
  • EP2755084B1 patent drawingFigure 1
  • EP2755084B1 patent drawingFigure 2
  • EP2755084B1 patent drawingFigure 3~5

AI summary

Access Panels for electronic devices are disclosed herein. An example electronic device disclosed herein includes a housing having an opening to access a card holder and an access panel coupled to the housing to cover the opening. The access panel slides and rotates relative to the housing when the access panel moves between an open position to allow access to the opening and a closed position to cover the opening. A first biasing element has a first end attached to the access panel and a second end attached to the housing and biases the access panel laterally relative to the housing. A second biasing element is coupled to the access panel to cause the access panel to rotate in a first rotational direction relative to the housing.