Mobile Device Case Actuator Mechanism for Side Button Access
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Solution Overview
Problem
Mobile devices are prone to drops, scratches, and damage from spills and wear, and existing cases do not effectively allow users to access side buttons when the device is placed on a surface or in a cradle, especially for users with physical limitations.
Innovation Solution
A removable case with integrated actuators that translate input force from one direction into a button-activating force in a different direction, allowing users to activate side buttons on a mobile device when it is placed on a surface or in a cradle, while providing protection from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the mobile device is placed on a flat surface or in a cradle for hands-free use, then the device stability is improved, but the user cannot access side buttons located on the device edges
Solution Approach 1:
The patent introduces an intermediary actuator mechanism within the case that mediates between the user's finger press on the front surface and the side button on the device edge. The actuator includes a pressing portion that contacts the user input, a transmitting portion that transfers force, and a pressing portion that activates the side button, enabling indirect button access when the device is stationary on a surface
Solution Approach 2:
The patent transforms the one-dimensional button pressing action (direct lateral press on side button) into a two-dimensional solution by adding vertical depth through the case structure. The actuator mechanism extends from the front surface of the case through to the side button, allowing users to press buttons from the front face direction rather than requiring direct access to the device edge
2Object-affected harmful factors
If a protective case is added to the mobile device, then the device protection is improved, but the device size and bulk increase
Solution Approach 1:
The patent embeds the actuator mechanism and button interface within the protective case structure itself, nesting the functional components inside the case volume rather than adding external attachments. The actuator's pressing portions and transmitting portions are integrated into the case body, providing protection while maintaining compact dimensions
Solution Approach 2:
The case employs a thin-walled structure with recessed portions and integrated actuators that minimize added bulk. The pressing portions are designed to extend through thin case walls, and the overall case geometry is optimized to provide necessary protection while keeping the volume increase minimal through efficient structural design
3Ease of operation
If the actuator translates input force from one direction to another direction to activate side buttons, then the button activation capability is improved, but the actuator structure complexity increases
Solution Approach 1:
The actuator is divided into distinct functional segments: a pressing portion for receiving user input, a transmitting portion for force transfer, and an output pressing portion for activating the button. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity and ease of manufacture
Solution Approach 2:
The transmitting portion of the actuator serves as a simple intermediary element that converts force from one direction to another without requiring complex mechanisms. This straightforward force transmission approach achieves the directional transformation needed for side button activation while minimizing structural complexity
Data Source
AI summary
A removable case for a mobile device is provided, the mobile device having a front face and a side edge, and an input button located on the side edge. The case includes a main body defining a region in which the mobile device can be removably received, and an actuator on the main body having a user interface and a button interface, wherein the actuator translates an input force received on the user interface into a button activating force applied by the button interface in a different direction than the input force.