Rotatable Finger Ring for One-Handed Tablet Grip
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Solution Overview
Problem
The increasing size of mobile phones and tablets makes it difficult to hold them with one hand while operating the touchscreen, often leading to accidental drops and damage, as existing cases only provide protection or support without addressing this issue.
Innovation Solution
A mobile phone or tablet case with a rotatable finger grasping ring on the bottom, featuring multiple finger holes and a turning connector, allowing users to securely hold the device with their fingers and palm, freeing their thumb to operate the touchscreen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the mobile phone or tablet size is increased for easier reading, then the screen area is improved, but the ease of operation becomes worse
Solution Approach 1:
The case is segmented into a main body and a separate rotatable ring component. This segmentation allows the ring to be independently positioned and rotated to provide optimal finger support, separating the viewing function (large screen) from the gripping function (rotatable ring with finger holes).
Solution Approach 2:
The ring is designed to be rotatable relative to the case body through a turning connector. This dynamic feature allows users to adjust the ring's position and orientation to find the most comfortable gripping angle, adapting the device to different hand sizes and operating preferences, thereby maintaining ease of operation despite the larger screen size.
2Area of moving object
If the mobile phone or tablet size is increased for easier reading, then the screen area is improved, but the reliability becomes worse
Solution Approach 1:
The case provides protective cushioning around the device, and the rotatable ring with finger holes offers preemptive support by enabling secure one-handed gripping. This prevents accidental drops before they occur, thereby maintaining reliability despite the larger, more vulnerable screen size.
3Ease of operation
If a rotatable ring with multiple finger holes is added to the case, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The rotatable ring serves multiple functions: it provides finger support for secure gripping, acts as a decorative element, and can be rotated to different positions to accommodate various hand sizes and operating styles. This multi-functionality justifies the added complexity by delivering multiple benefits from a single component.
Solution Approach 2:
The turning connector uses a flexible short wire to connect the ring to the case body, allowing rotation while maintaining structural integrity. This flexible connection method is simpler than mechanical hinges or magnetic attachments, reducing overall device complexity while still achieving the desired rotatable functionality.
4Adaptability or versatility
If a turning connector with short flexible wire is used to connect the ring, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The turning connector allows the ring to rotate and change its angular position, providing adaptability for different user preferences. The flexible wire enables this parameter change (rotation angle) while maintaining a simple connection structure, avoiding the need for complex mechanical joints or electronic sensors.
Data Source
AI summary
A mobile phone/tablet case with finger grasping ring comprises a box for receiving a body of the mobile phone or tablet, a finger grasping ring is provided on the box bottom; the finger grasping ring is provided a multiple of finger holes which are enterable by fingers. Another embodiment the finger grasping ring has an elastic valve and an elastic belt; the elastic valve has one side connected with the elastic bottom together and other sides are separated from the bottom; the elastic belt has two opposite ends connected with the elastic valve together and other two opposite sides separated from the elastic valve, the elastic belt is parallel to long sides of the box. When the middle finger of user enter the gap between the belt and valve, the case with a mobile phone/tablet is grasped without thumb.