Glasses Hinge Sliding Mechanism to Prevent Joint Loosening

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Solution Overview

Problem

The connection between the support frame and support legs of glasses tends to loosen with repeated use, leading to instability and potential damage, especially in glasses with rotating shaft connections.

Innovation Solution

A rotating mechanism comprising a first bracket, a second bracket, an elastic member, and a sliding member, where the second bracket rotates relative to the first bracket, causing the sliding member to slide and elastically deform the elastic member, providing stability and resistance during state transitions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a rotating shaft connection is used to connect the support frame and support leg, then the glasses frame can be opened and closed, but the connection loosens with repeated use

Engineering Contradiction:
Improveopening and closing functionVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A sliding member is introduced as an intermediary component between the first bracket and second bracket. The sliding member includes a groove that receives an elastic member, and its end portion abuts against the first bracket while its other end is rotatably connected to the second bracket. This intermediary structure transforms the direct rotating shaft connection into a multi-component system that maintains stability during repeated opening and closing operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic member is pre-installed in the groove of the sliding member to provide cushioning and maintain connection stability. The elastic member exerts a continuous elastic force that compensates for wear and loosening that occurs with repeated use, ensuring the connection remains tight and reliable without requiring frequent adjustments.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If the sliding member is made with a groove for the elastic member, then connection stability is improved, but the device complexity increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sliding member integrates multiple functions into a single component: it provides the rotational connection between brackets, contains the groove for the elastic member, and serves as the structural element that abuts against the first bracket. By merging these functions into one piece, the design avoids the need for separate components for each function, thereby limiting the increase in device complexity while achieving improved connection stability.

Inventive Principle:
Principle #5Merging (Combining)

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 mechanism enhances long-term stability and reduces wear on flexible circuit boards while maintaining a damping feel during state changes, preventing loosening and damage.

Implementation Method 1

the second bracket drives the sliding member to slide relative to the accommodating space to allow the elastic member to be elastically deformed

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12529908B2Rotating mechanism of glasses, glasses, and smart glasses
Publication Date: 2026.01.20 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US12529908B2 patent drawing
  • US12529908B2 patent drawing
  • US12529908B2 patent drawing

AI summary

The present application provides a rotating mechanism of glasses, glasses and smart glasses. The rotating mechanism includes a first bracket, a second bracket, an elastic member, and a sliding member; the first bracket is provided with an accommodating space; the elastic member is provided in the accommodating space; the sliding member has one end movably connected to the first bracket by means of the elastic member, and another end rotatably connected to the second bracket; and when the second bracket rotates relative to the first bracket by means of the sliding member, the second bracket drives the sliding member to slide relative to the accommodating space, such that the elastic member is elastically deformed.