Eyeglass Hinge Structure with Temple Clip and Resilient Projections
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Solution Overview
Problem
Conventional eyeglasses hinges often experience screw loosening and disengagement over time, requiring specialized tools for adjustment, and involve complex threaded apertures, which can be inconvenient and difficult to manufacture.
Innovation Solution
A hinge structure with resiliently flexible first projections and pivot members that can move between a use and disengagement position, featuring a removable blocking member to prevent disengagement, allowing temples to be securely connected to the lens and frame assembly without the need for screws or specialized tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw is used to pivotally connect temples to the frame, then the connection can be adjusted and secured, but the screw may loosen and fall out over time, requiring specialized tools for removal or tightening
Solution Approach 1:
The invention extracts the screw from the hinge connection system and replaces it with a snap-fit mechanism using resilient projections and recesses. This eliminates the need for threaded apertures and specialized tools while maintaining the pivotal connection function between temples and frame.
Solution Approach 2:
The resilient projections automatically engage with the recesses through elastic deformation, creating a self-securing connection that maintains itself without requiring external tools or adjustment mechanisms. The connection self-adjusts to accommodate wear and maintains reliability over time.
2Reliability
If a threaded aperture is used for the screw, then secure attachment is achieved, but the manufacturing complexity increases
Solution Approach 1:
The invention removes the threaded aperture requirement entirely by using a snap-fit mechanism. The resilient projections engage with simple recesses that can be formed through standard molding or machining processes, significantly simplifying manufacturing while maintaining secure attachment.
Solution Approach 2:
The invention changes the connection mechanism from threaded fastening to elastic deformation-based snap-fit. This parameter change allows for simpler manufacturing processes while achieving equivalent or superior attachment security through the resilient nature of the projections.
3Adaptability or versatility
If a screw connection is used, then the hinge can be tightened or loosened, but the screw may eventually loosen and separate the frame from the temple
Solution Approach 1:
The resilient projections create a self-adjusting connection that automatically compensates for wear and maintains secure attachment. The elastic deformation allows the connection to adapt to dimensional changes while maintaining stability, eliminating the loosening problem inherent in screw connections.
Solution Approach 2:
The invention introduces dynamic elasticity to the connection mechanism, allowing the resilient projections to deform and adapt to wear over time. This dynamic response maintains connection stability whereas rigid screw connections cannot adapt and eventually loosen.
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
This design enhances the durability and ease of use by preventing screw loosening and eliminating the need for specialized tools, simplifying the manufacturing process and ensuring secure temple attachment to the frame assembly.
Implementation Method 1
The first projections are resiliently flexible for movement between a use position in which the first pivot members are pivotally mated with the second pivot members, and a disengagement position in which the first pivot members are withdrawn from the second pivot members
Data Source
AI summary
In a first aspect, a pair of eyeglasses is provided and includes a lens and frame assembly that includes at least one lens, a first temple and a second temple, and a hinge structure pivotally connecting each temple to the lens and frame assembly. The hinge structure includes two first projections which are spaced apart from one another. Each first projection has a first pivot member thereon. The first projections extend from one of said temple and said lens and frame assembly. The other of said temple and said lens and frame assembly has two second pivot members that pivotally mate with the first pivot members. The first projections are resiliently flexible for movement between a use position in which the first pivot members are pivotally mated with the second pivot members, and a disengagement position in which the first pivot members are withdrawn from the second pivot members so as to permit the temple and the lens and frame assembly to be separated from one another. A blocking member is removably mountable in abutment with the first projections so as to prevent movement of the first projections to the disengagement position.