Lens Device Elastic Fitting for Screwless Switch Fixation
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Solution Overview
Problem
Existing lens devices require screws for fixing switch portions to fixation frames, which can be cumbersome and inefficient in assembly.
Innovation Solution
A lens device design that uses a fitting structure between a fixation frame and a switch portion, where a fixing member with an elastic portion is fitted to a fitting portion, eliminating the need for screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the switch portion to the fixation frame, then the attachment is secure and reliable, but the assembly process becomes cumbersome and time-consuming
Solution Approach 1:
The patent replaces the traditional screw-based mechanical fastening system with an elastic fitting structure. The fixing member includes an elastic portion that is elastically deformed when fitted into the fitting portion, creating a secure attachment without requiring screws. This substitution maintains attachment reliability while significantly improving assembly efficiency.
Solution Approach 2:
The patent utilizes elastic deformation as a key parameter change mechanism. The elastic portion of the fixing member is designed to be deformable within certain limits, allowing it to be inserted into the fitting portion and then recover its shape to create a secure fit. This parameter change enables reliable attachment without the need for threaded fasteners.
2Strength
If screws are used to fix the switch portion, then the connection is strong and stable, but the device complexity increases due to additional fastening components
Solution Approach 1:
The patent extracts and eliminates the screw fasteners from the assembly, retaining only the essential elastic fixing member. By removing the screw components entirely and relying on the elastic deformation mechanism, the design reduces structural complexity while maintaining connection strength through the elastic fit between the fixing member and fitting portion.
Solution Approach 2:
The patent merges the functions of the fixing member and the fastening mechanism into a single integrated component. The elastic portion of the fixing member simultaneously serves as both the connection element and the fastening mechanism, eliminating the need for separate screws and washers, thereby reducing device complexity while maintaining connection strength.
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
Enables efficient and secure fixation of switch units to the fixation frame without screws, simplifying assembly and ensuring robust attachment.
Implementation Method 1
the fitting target portion includes an elastic portion having elasticity, and the fitting portion includes a contact portion that comes into contact with the elastic portion to elastically deform the elastic portion
Data Source
AI summary
The lens device includes a fixation frame, a switch portion, and a fixing member that fixes the fixation frame and the switch portion to each other. The fixation frame includes a fitting portion and the fixing member includes a fitting target portion that is fitted to the fitting portion. The fitting target portion includes an elastic portion having elasticity and the fitting portion includes a contact portion that comes into contact with the elastic portion so that the elastic portion is elastically deformed.