Dismountable Glasses Frame with Removable Rods
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Solution Overview
Problem
Existing glasses frames are not easily dismountable, requiring specialized expertise to remove and replace lenses, and lack stability and protection for the lenses, making it risky for non-experts to perform maintenance or changes.
Innovation Solution
A dismountable frame design with a frontal chassis and laterally mounted rods, featuring removable end pieces with through cuts for easy lens removal and replacement, and a stable coupling mechanism to prevent lens displacement, allowing customization without tools and ensuring lens protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the frame uses a single body chassis with fixed lenses, then lens stability and protection are improved, but lens replacement requires specialized expertise and time-consuming operations
Solution Approach 1:
The frame is divided into separable components: the chassis, the rod assembly, and the lens retention mechanism. The rod assembly can be removed from the chassis to access the lenses, enabling easy lens replacement while maintaining stability when assembled. This segmentation allows non-experts to perform lens changes without specialized tools or expertise.
2Adaptability or versatility
If the frame allows rod removal and replacement, then customization ease is improved, but the chassis remains a single body that complicates lens access
Solution Approach 1:
The design segments the frame into modular components where the rod assembly is separately attachable to the chassis. This segmentation serves dual purposes: enabling rod customization while simultaneously providing access to lenses for replacement, thereby reducing overall device complexity for maintenance operations.
Solution Approach 2:
The rod assembly serves multiple functions: it provides structural support, enables temple attachment, and acts as a removable cover for lens access. This multi-functionality allows the same component to facilitate both customization and maintenance without requiring separate mechanisms.
3Ease of manufacture
If plastic or resin frames are used, then manufacturing flexibility is improved, but lens removal requires heating and specialized expertise
Solution Approach 1:
The frame design segments the lens retention mechanism from the main chassis structure. Instead of requiring heating to release lenses embedded in plastic, the rod assembly can be simply removed to access and replace lenses, making repair as easy as it is for metal frames while retaining the manufacturing flexibility of plastic materials.
4Strength
If metal frames with screws or pins are used, then structural strength is improved, but lens replacement requires tool removal and repositioning expertise
Solution Approach 1:
The design uses a segmented rod assembly that attaches to the chassis without requiring screws or pins for lens access. The rod assembly itself serves as the access mechanism, eliminating the need for tool-based removal and repositioning expertise while maintaining structural strength through the rod-chassis connection.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A dismountable frame for glasses comprises a frontal chassis (2) having a pair of circles (3, 4) for housing respective lenses, a pair of rods (5, 6) mounted laterally to the chassis (2) from opposite sides with respect thereto, means for removably fixing the rods (5, 6) to the chassis (2) comprising a pair of end pieces (8) each having a first shaped portion (9) with jointing means (10) adapted to be removably inserted and fitted in corresponding counter- shaped lateral seats (11) of the chassis (2), the latter being provided with a pair of through cuts (12, 13) made in each of the lateral counter-shaped seats (11) to allow the enlargement of the circles (3, 4) in the absence of the end pieces (8).