Friction Arc Support Mechanism for LCD Angle Adjustment
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Solution Overview
Problem
The high cost and difficulty of mass-producing hinges for liquid crystal displays, which are necessary to adjust screen angles, make conventional hinge-based solutions impractical for cost-effective and efficient angle adjustment in electronic devices.
Innovation Solution
An electronic device with a support mechanism that uses a rotatable member, a friction member with circular arc surfaces, and a base to adjust the body without a hinge, utilizing friction to maintain a predetermined position, allowing for easier assembly and reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hinge is used to adjust the screen angle, then the screen angle can be adjusted, but the manufacturing cost increases and mass production becomes difficult
Solution Approach 1:
The hinge is divided into multiple independent components: a support member, a rotatable member, a friction member, and a combining member. This segmentation allows each component to be manufactured separately using standard processes, eliminating the need for specialized hinge manufacturing while maintaining the angle adjustment function through assembly of these simpler parts
Solution Approach 2:
The specialized hinge component is extracted and replaced with a friction-based locking mechanism. The friction member with its first circular arc surface abuts against the second circular arc surface on the base, creating friction that holds the screen at desired angles without requiring a traditional hinge structure, thus enabling standard mass production techniques
2Force
If a specialized hinge is manufactured to obtain required torque, then the torque requirement is met, but the production cost increases
Solution Approach 1:
The torque requirement is satisfied by adjusting parameters of the friction member rather than manufacturing a specialized hinge. By modifying the friction coefficient, surface area of the circular arc surfaces, and normal force through the combining member, the required torque is achieved using standard manufacturing processes, thereby reducing production cost while maintaining the necessary force
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
This solution enables cost-effective and efficient adjustment of electronic device screens by eliminating the need for specialized hinges, allowing for easier assembly and maintaining the screen at desired angles through frictional force, thus reducing production costs.
Implementation Method 1
The first circular arc surface slidably abuts the second circular arc surface. The body is kept at a predetermined position by friction generated by the first circular arc surface abutting the second circular arc surface.
Data Source
AI summary
An electronic device and a support mechanism thereof. The electronic device includes a body, a rotatable member, a support, a friction member, and a base. The rotatable member is disposed on the body. The support is combined with the rotatable member. The rotatable member rotates with respect to the support. The friction member is combined with the rotatable member, and has a first circular arc surface. The base is combined with the friction member, and has a second circular arc surface corresponding to the first circular arc surface. The support is disposed on the base. The first circular arc surface slidably abuts the second circular arc surface.