Protective Case Hinge Mechanism for Adjustable Tablet Support Angles
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Solution Overview
Problem
Existing protective cases for tablet computers only allow single-angle support, failing to meet user requirements in various application scenarios.
Innovation Solution
A hinge mechanism with a first and second rotating shaft assembly and a transmission part that enables synchronized rotation of multiple portions of the protective case, allowing for adjustable support angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If soft rubber is used to connect support structures for simple rotation, then the structure is simple and easy to manufacture, but only single-angle supporting can be performed and random support angle adjustment cannot be implemented
Solution Approach 1:
The hinge mechanism transforms the static single-angle support into a dynamic multi-angle support system. The first and second rotating shaft assemblies enable independent rotation of the first and second support portions, while the transmission part (gear rack and pinions) provides synchronized rotation capability. This dynamic structure allows the protective case to adapt to various support angles according to different usage scenarios, resolving the contradiction between adaptability and structural complexity.
Solution Approach 2:
The hinge mechanism integrates multiple functions into a single system: the first rotating shaft assembly provides rotation for the first support portion, the second rotating shaft assembly provides rotation for the second support portion, and the transmission part coordinates their movements. This multi-functional design enables the protective case to serve as both a protective cover and an adjustable support structure, achieving random angle adjustment while maintaining reasonable structural complexity.
2Adaptability or versatility
If multiple rotating shaft assemblies and transmission parts are added for random angle adjustment, then support angle adaptability is improved, but the device complexity increases
Solution Approach 1:
The hinge mechanism merges the rotation control of multiple support portions into a coordinated system. The transmission part (gear rack and pinions) links the first and second rotating shaft assemblies, enabling synchronized rotation. This merging of control functions allows the user to adjust support angles through a unified mechanism rather than independently controlling each support portion, thereby improving ease of operation despite the increased number of components.
Data Source
AI summary
A hinge mechanism is applied to—a protective case. A first rotating shaft assembly in the hinge mechanism is fixedly connected to a first portion of the protective case, and is further rotatably connected to a second portion of the protective case. A second rotating shaft assembly in the hinge mechanism is fixedly connected to the second portion of the protective case, and is further rotatably connected to a third portion of the protective case. When the second portion of the protective case rotates relative to the first portion of the protective case by using the first rotating shaft assembly, a transmission part that cooperates with both the first rotating shaft assembly and the second rotating shaft assembly is configured to drive the third portion of the protective case to rotate relative to the second portion of the protective case by using the second rotating shaft assembly.