Retractable Accessory Post Mechanism for Flush Electronic Housings
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Solution Overview
Problem
Existing attachment mechanisms for accessory devices on electronic devices often detract from the aesthetic appeal and alter the form factor, failing to provide a satisfactory solution for users.
Innovation Solution
A displaceable post mechanism that moves between deployed and stored configurations, featuring an enlarged head for accessory device attachment, with a spring and cam surfaces for secure retention and user feedback, allowing the attachment mechanism to be concealed when not in use, thus maintaining the device's cosmetic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed attachment mechanism is used, then accessory devices can be securely attached, but the cosmetic appearance and form factor are compromised
Solution Approach 1:
The attachment mechanism employs a movable post that transitions between a retracted position (maintaining smooth cosmetic appearance) and an extended position (providing secure attachment). This dynamic configuration allows the same component to satisfy both aesthetic and functional requirements at different times, resolving the contradiction between appearance and attachment security.
2Shape
If a movable post mechanism is used, then cosmetic appearance is maintained, but the mechanism complexity increases
Solution Approach 1:
The movable post is nested within a housing structure, with cam surfaces and followers integrated into the same assembly. The spring mechanism is contained within the housing, allowing all components to occupy a compact volume. This nesting approach minimizes the overall space required and reduces the apparent complexity while maintaining the movable functionality.
Solution Approach 2:
The attachment mechanism is divided into distinct functional segments: the movable post for attachment, the cam surfaces for controlled movement, the follower for translating motion, and the spring for providing force. This segmentation allows each component to be optimized independently and simplifies the overall design by breaking down the complex mechanism into manageable, well-defined parts.
3Ease of operation
If cam surfaces and followers are used for movement, then smooth operation with feedback is achieved, but the device complexity increases
Solution Approach 1:
The cam surfaces are designed with curved geometries that guide the follower through a smooth arc-shaped path during post retraction and extension. This curvature ensures continuous contact between the cam and follower, providing smooth operation and audible feedback clicks at transition points, while the compact curved design fits efficiently within the housing space.
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 mechanism provides secure attachment of accessory devices while maintaining the electronic device's aesthetic integrity by hiding the attachment mechanism in a stored configuration, offering resistance and audible feedback for user convenience.
Implementation Method 1
a spring may interact with one or more cam surfaces. Further, a spring may retain the displaceable post in the deployed and stored configurations
Implementation Method 2
a follower may interact with one or more cam surfaces
Data Source
AI summary
Attachment mechanisms that may be employed to attach accessory devices to electronic devices are provided. The attachment mechanism may include a displaceable post that is moveable between deployed and stored configurations. In the deployed configuration an accessory may be attached to the displaceable post, whereas in the stored configuration the displaceable post may be at least partially inaccessible. Movement of the displaceable post may be controlled by cam surfaces, a spring, and a follower. The spring may be conical and configured to fold flat to reduce the height of the attachment mechanism.