Eyeglass Assembly Lens Locking Mechanism
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Solution Overview
Problem
Traditional eyeglass assemblies, particularly frameless types, face issues with stability and damage due to inadequate fixation methods such as drilling or insufficient cord strength, leading to instability and susceptibility to damage.
Innovation Solution
An eyeglass assembly design featuring a lens with a covering portion that shields the outer edge and a locking portion extending inwardly, combined with a circular slot, securely mounts and locks the lens on the eyeglass frame from both inner and outer sides, enhancing stability and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If drilling holes in the lens for frameless eyeglasses, then the lens can be fastened to the temple, but the lens is easy to get damaged or cracked due to the drilling process or external force
Solution Approach 1:
The invention extracts the temple from the lens structure, eliminating the need for drilling holes in the lens. Instead, the temple is configured to wrap around and engage with the lens externally through a clamping mechanism, thereby preserving lens integrity while achieving secure fastening.
Solution Approach 2:
The invention introduces an intermediary clamping structure (including clamping pieces and elastic components) between the temple and the lens. This intermediary mechanism enables secure fastening without direct penetration or drilling of the lens, thus maintaining lens durability while achieving reliable attachment.
2Adaptability or versatility
If using a cord to wrap around the lens for positioning, then the frameless type eyeglasses can be assembled, but the fixation strength of the cord is insufficient making the eyeglasses easily damaged
Solution Approach 1:
The invention changes the fixation mechanism from a flexible cord with insufficient strength to a structured clamping mechanism with adjustable clamping force. The elastic components and clamping pieces create a mechanical system that provides adequate fixation strength while maintaining the frameless design aesthetic.
Solution Approach 2:
The temple incorporates composite structural elements including rigid clamping pieces and elastic components working together. This composite approach combines the flexibility needed for frameless design with the structural strength required for reliable fixation, overcoming the limitations of single-material cord solutions.
3Ease of manufacture
If lenses are pressed into mounting slots due to material elasticity, then lenses can be assembled into traditional full frame eyeglasses, but the assembly method is traditional and lacks novelty and attractiveness
Solution Approach 1:
Instead of pressing the lens into the frame from the traditional direction, the invention inverts the assembly approach by having the temple wrap around and clamp onto the lens from the opposite side. This reversed configuration creates a novel assembly method that maintains ease of manufacture while achieving unique design characteristics.
Solution Approach 2:
The invention transitions from the traditional planar mounting slot assembly to a three-dimensional wrapping and clamping structure. The temple extends and wraps around the lens in multiple dimensions, creating a spatially complex yet manufacturable assembly that provides both novelty and design attractiveness.
Data Source
AI summary
An eyeglass assembly is revealed. The eyeglass assembly mainly includes lenses assembled with an eyeglass frame. Each lens is disposed with a covering portion that shields an outer edge of the eyeglass frame. A locking portion is formed by inward extension of the covering portion and is against the inner surface of the eyeglass frame. A circular slot is arranged between the locking portion and the covering portion, and is used for mounting and locking the eyeglass frame. Thereby the lenses are secured firmly on the eyeglass frame. The lenses of the present invention are assembled with the eyeglass frame in different way so as to get a pair of novel and attractive eyeglasses.