Screwless Hinge Eyeglass Frame with Adjustable Nose Pad
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Solution Overview
Problem
Conventional eyeglass frames face challenges with nose pad length adjustment for varying nose heights and require screws in hinge structures, leading to inconvenience and potential loss.
Innovation Solution
The eyeglass frame features a symmetrical design with a bar-shaped earpiece frame, a hinge allowing 360-degree pivoting, a support frame, and an adjustable nose pad with a parabolic shape, eliminating the need for screws and ensuring secure fit across different nose heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a uniform length nose pad connection is used, then the structure is simple, but it cannot accommodate users with small noses requiring longer nose pads
Solution Approach 1:
The nose pad connection structure is designed to be dynamically adjustable in length. The connection includes a movable component that allows the nose pad length to be extended or retracted based on the user's nose size, transforming a static uniform structure into a dynamic adaptive one.
Solution Approach 2:
The nose pad connection length parameter can be changed to accommodate different nose heights. The structure allows adjustment of the connection length parameter, enabling it to be longer for users with small noses and shorter for users with larger noses, while maintaining a relatively simple overall structure.
2Ease of operation
If temples are horizontally folded, then the structure is compact, but users must forcibly bend temples vertically causing discomfort
Solution Approach 1:
The temple structure incorporates a dynamic folding mechanism that allows smooth transition between horizontal and vertical positions. The temple includes a flexible joint or hinge that enables users to fold the temple horizontally without forcibly bending it, maintaining structural integrity while improving ease of operation.
Solution Approach 2:
The temple is designed with flexible materials or a flexible joint section that allows it to bend smoothly in the horizontal direction without creating stress concentration points. This flexible design enables comfortable folding while preventing damage to the temple structure.
3Reliability
If screws are used in hinge structure, then the connection is secure, but screws may be lost causing inconvenience
Solution Approach 1:
The screw components are extracted or eliminated from the hinge structure. The hinge is redesigned to use a screwless connection mechanism such as a friction fit, snap-fit, or integrated joint that provides secure connection without requiring separate screw fasteners that can be lost.
Solution Approach 2:
The hinge connection structure merges the fastening function into the hinge body itself. The hinge includes an integrated joint design where the connection mechanism is built into the hinge structure, eliminating the need for separate screws and reducing the risk of loss while maintaining secure connection.
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 design provides a lightweight, collapsible, and adjustable eyeglass frame that securely fits various nose shapes without sliding, offering improved comfort and convenience by eliminating the need for screws in the hinge structure.
Implementation Method 1
The hinge may include: a first hinge plate extending from the earpiece frame and having a rotary hole formed at a center thereof; a second hinge plate extending from the main body and having a rotary hole formed at a center thereof; a first elastic slit formed by partially cutting the second hinge plate at a point where a first rotary member inserted into the rotary hole of the second hinge plate is disposed and preventing the point where the first rotary member is disposed from being damaged by an external force during a rotation of the first rotary member
Data Source
AI summary
Provided is an eyeglass frame with a symmetrical structure. The eyeglass frame includes an earpiece frame, a main body, a hinge, and a support frame. The earpiece frame has a bar-shaped structure in which a width and an angle thereof vary according to the length thereof to be placed on the ear of a user. The main body is connected to the earpiece frame through a hinge, serves as a pivot that pivots on the hinge, and has an inner circumference of a closed curve receiving a lens. The hinge allows the earpiece frame to be inwardly folded toward the main body through pivoting of a predetermined angle. The support frame is disposed under the main body along an outer circumference of the main body and is spaced from the main body by a predetermined interval.