Hinge Resilient Device Mount Integration for Torsional Stress
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Solution Overview
Problem
Conventional hinges in notebook computers suffer from premature failure due to torsional stress on resilient devices, which can lead to breakage over time, especially when the resilient device mount and pintle components are subjected to repeated rotation and tension.
Innovation Solution
A hinge design featuring a resilient device mount integrated into the pintle, with a moving leaf having a barrel and protruding limit that abuts the stationary leaf, creating a gap for cables and distributing torsional force to prevent breakage, and an optional C-clip for reinforcement, allowing the resilient device to slip and realign for extended use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the resilient device mount is separate from the pintle, then the hinge can be assembled with conventional components, but the resilient device mount breaks easily under torsional stress during repeated rotation
Solution Approach 1:
The resilient device mount is integrated into the pintle component, forming a single unified structure. This merging eliminates the separate resilient device mount that was prone to breakage, while the pintle remains a manufacturable and assembleable component. The integration strengthens the overall hinge structure against torsional stress.
2Ease of manufacture
If the resilient device end is bent 90 degrees for mounting, then it can be installed in the mounting hole, but the bent end is easily broken when under tension
Solution Approach 1:
Instead of bending the resilient device end at 90 degrees for installation, the design allows the resilient device to be mounted directly without such bending. The resilient device mount on the pintle provides a direct mounting interface that eliminates the need for bent connections, thereby preserving the strength of the resilient device end while maintaining installability.
3Device complexity
If the resilient device is mounted without a protruding limit, then the structure is simpler, but terminal failure occurs without preventing gap formation for cables
Solution Approach 1:
The protruding limit is extracted as a separate functional feature from the main resilient device structure. It serves as a distinct element that abuts the stationary leaf to prevent terminal failure and maintain the gap for cables, while the rest of the resilient device mounting structure remains relatively simple.
4Stability of the object's composition
If the resilient device is rigidly fixed, then it provides stable mounting, but torsional force builds up and causes breakage over time
Solution Approach 1:
The resilient device is designed to allow dynamic movement and slippage within the resilient device mount on the pintle. This dynamic characteristic enables the resilient device to absorb and distribute torsional forces during rotation, preventing stress concentration that would lead to breakage, while maintaining stable mounting through the resilient connection.
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
The design enhances the lifespan of the hinge by preventing terminal failure, maintaining a gap for cables, and distributing torsional forces, thereby reducing wear and enabling longer operational life.
Implementation Method 1
The resilient device (30) is mounted around the pintle (10) and is allowed to slip within the resilient device mount (111) to distribute torsional force
Implementation Method 2
The resilient device (30) is mounted around the distal ends of the support rod (91) and the pintle (94)
Data Source
AI summary
A hinge has a pintle, a moving leaf, a resilient device and a stationary leaf. The pintle has a resilient device mount formed on a distal end and is mounted securely in the stationary leaf. The moving leaf is mounted rotatably around the pintle and has a barrel having a protruding limit formed on an outer end. Because the resilient device mount is formed on the pintle, it does not break easily and may slip to prevent terminal failure and be reset when closed. The protruding limit abuts the stationary leaf and ensures a gap is formed between the leaves for wires cabling or the like. Therefore the hinge has improved wear and longer lifespan.