Orthogonal Force Actuator for Mobile Device Side Button Access
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Solution Overview
Problem
Mobile devices are prone to damage and operational challenges when used without physical handling, such as when laid on a flat surface or in a cradle, due to the difficulty in activating buttons without direct manual force.
Innovation Solution
A removable case with integrated actuators that translate forces orthogonally to activate side buttons on mobile devices, allowing users to press buttons from the front face, even when the device is not being held, by converting Z-direction forces into X- or Y-direction forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the mobile device is placed on a flat surface or in a cradle without physical holding, then the device is protected from hand wear and tear, but the buttons become difficult to activate without direct manual force
Solution Approach 1:
The case acts as an intermediary between the user and the mobile device buttons. When the device is placed on a surface, the user presses the case body (Z-direction force) instead of directly pressing the device buttons. The actuator mechanism inside the case converts this Z-direction force into X- or Y-direction force to activate the side buttons on the device, enabling operation without direct manual handling of the device itself.
Solution Approach 2:
The actuator mechanism changes the direction parameter of the applied force. The force applied by the user in the Z-direction (perpendicular to the case surface) is transformed into X- or Y-direction force (parallel to the device side buttons) through the actuator's mechanical conversion, allowing button activation from a different directional approach.
2Ease of operation
If integrated actuators are added to the case to enable button activation from the front face, then button operability is improved, but the device complexity increases
Solution Approach 1:
The case is segmented into functional zones: a main body for protection, actuators for force conversion, and transmission mechanisms for force delivery. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability despite the added complexity.
Solution Approach 2:
The actuator mechanism combines multiple functions into a single integrated component within the case: it receives user input force, converts the force direction, and transmits the converted force to activate the device buttons. This merging reduces the number of separate components needed while achieving the desired functionality.
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
Enables users to easily activate side buttons on mobile devices placed on a surface or in a cradle, enhancing usability for individuals with physical limitations and providing protection against damage from wear and tear.
Implementation Method 1
an actuator that orthogonally translates force in a Z-direction to an X- or a Y-direction for activating the input button
Data Source
Figure 1A~1D
Figure 2
Figure 3~4
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. The case also protects the mobile device from debts, scratches, wear, tear, dust or liquids, but mainly enables the user to access the complete manual user interface of the device from one direction, i.e. provides a simple access to input means.