Glasses Side Piece Structure with Foolproof Fastener
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Solution Overview
Problem
Existing side piece structures in safety glasses are prone to erroneous assembly and lack ease of replacement, leading to discomfort and instability, especially when exposed to particulates or chemicals.
Innovation Solution
A side piece structure for glasses featuring a temple with a slot, fastener hole, pivot hole, and marks, and a side piece with a bracket, fastener bump, pivot, and marks, allowing secure engagement and easy replacement, with optional features like a coupling groove and light source devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the side cover is simply inserted into the slot with positioning bump engaged into positioning hole, then the assembly process is simple, but the side cover becomes unstable and prone to shaking
Solution Approach 1:
The side piece is divided into multiple functional components: bracket for slot engagement, pivot for rotation, and fastener bump for securing. This segmentation allows each component to perform its specific function while working together to achieve both easy assembly and stable fixation.
Solution Approach 2:
The fastener bump is pre-positioned on the side piece and the fastener hole is pre-positioned on the temple. During assembly, the fastener bump automatically engages with the fastener hole before final tightening, ensuring proper alignment and preventing erroneous assembly before the user completes the fastening action.
2Device complexity
If the side cover uses a simple insertion structure, then the device complexity is low, but it lacks foolproof design and allows erroneous assembly
Solution Approach 1:
The fastener bump and fastener hole are designed with asymmetric geometries that only match in the correct orientation. This prevents erroneous assembly where the side piece could be installed backwards or on the wrong temple, while adding minimal complexity to the overall structure.
Solution Approach 2:
The fastener mechanism acts as an intermediary between the side piece and temple, providing a controlled engagement process. The fastener bump must pass through the fastener hole in the correct orientation, serving as a mediator that ensures proper assembly before allowing the side piece to be fully secured.
3Reliability
If the side piece is firmly fixed to prevent shaking, then the stability is improved, but the replacement difficulty increases
Solution Approach 1:
The side piece structure transitions from a static fixed connection to a dynamic removable connection. The fastener mechanism allows the side piece to be securely fixed during use (stable state) but can be easily removed by actuating the fastener release (transitional state), enabling both stability and replaceability.
Solution Approach 2:
The fastener mechanism is designed to be user-operable without requiring tools or specialized skills. The user can independently secure the side piece by engaging the fastener bump with the fastener hole and release it by actuating the fastener, making the replacement process self-service and maintenance-free.
4Ease of operation
If the side cover structure is simplified for easy replacement, then the ease of operation is improved, but the protection effectiveness against particulates and chemicals may be reduced
Solution Approach 1:
The side piece is segmented into the bracket (for structural integrity and sealing), the fastener (for easy operation), and the side cover (for protection). This segmentation allows the bracket and side cover to maintain protection effectiveness while the fastener provides ease of operation for replacement.
Solution Approach 2:
The fastener mechanism serves as an intermediary between the user's operational needs and the protective function of the side cover. It allows easy user operation for replacement while maintaining the integrity and protective capability of the side cover structure when assembled.
Data Source
AI summary
Provided is a side piece structure of a pair of glasses, including at least one temple and at least one side plate. The at least one temple includes a slot, a fastener hole, a pivot hole and a first mark. The at least one side plate includes a bracket, a fastener bump, a pivot, a second mark and a side cover. The pivot is inserted into the pivot hole, and then the fastener bump is engaged with the fastener hole. The bracket is fitted into the slot, and then the first mark is aligned with the second mark.