Eyeglass Frame Securement with Elastic Rib Locking

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Solution Overview

Problem

Existing eyeglass frame securement systems fail to maintain a firm restriction on functional eyeglasses over time, leading to looseness after repeated assembly and disassembly, due to gaps forming between the eyeglass frame and the eyeglasses.

Innovation Solution

The eyeglass frame securement apparatus features an upper and lower frame with protruding pins, grooves, and a rib portion that allow for directional locking, combined with a protection strip frame and hooks, ensuring secure attachment and easy replacement of eyeglasses, even after multiple cycles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking type securement is used to attach eyeglasses to the frame, then the eyeglasses can be firmly restricted initially, but after repeated disassembly and assembly the eyeglasses become loose due to gap formation

Engineering Contradiction:
Improvesecurement stabilityVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent applies elasticity theory by using a resilient rib portion that can dynamically adapt to repeated assembly and disassembly operations. The rib portion elastically deforms during assembly to engage with the groove, and this elastic recovery ensures consistent engagement force over time, preventing the loosening that occurs in rigid locking mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the physical state of the securement mechanism from rigid to resilient. By making the rib portion resilient rather than rigid, the system can accommodate repeated mechanical operations without losing engagement capability, thereby maintaining securement stability throughout the service life of the eyeglass frame.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If a locking mechanism is designed to firmly secure eyeglasses, then directional restriction is achieved, but the complexity of the securement structure increases

Engineering Contradiction:
Improvedirectional restrictionVSAvoidsecurement structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The securement mechanism is segmented into distinct functional elements: protruding pins for positioning, grooves for lateral engagement, and a rib portion for securing. This segmentation allows each element to perform its specific function simply, avoiding the need for a complex integrated locking mechanism while achieving reliable directional restriction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of using a complex active locking mechanism that requires engagement actions, the patent uses a passive securement approach where the resilient rib portion automatically engages with the groove through elastic deformation. This inverted approach simplifies the structure by eliminating complex locking components while maintaining reliable directional restriction.

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If a simple locking mechanism is used for easy replacement, then ease of operation is improved, but the securement becomes loose after repeated use

Engineering Contradiction:
Improvereplacement convenienceVSAvoidsecurement firmness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The resilient rib portion provides dynamic adaptation to repeated operations. During easy replacement operations, the rib elastically deforms to accommodate assembly and disassembly, then recovers to maintain firm engagement. This dynamic behavior allows simple operation while preventing the loosening that would occur with static simple locking mechanisms.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8820920B2Eyeglass frame securement apparatus
Publication Date: 2014.09.02 JIANN LIH OPTICAL
  • US8820920B2 patent drawing
  • US8820920B2 patent drawing
  • US8820920B2 patent drawing

AI summary

The present invention provides an eyeglass frame securement apparatus comprising an eyeglass frame with upper and lower frames for eyeglasses to be mounted thereon, two outer sides of said upper and lower frames attached to eyeglass temples, a protection strip frame locked into inner circumference of said eyeglass frame; protruding pins extending forward and rearward from a center of the lower frame pivotally attached to the upper frame; a rib extending from outer sides of the upper frame and inserted into grooves to restrict the eyeglasses; protrusions on upper end of supporting shaft of the eyeglass temples inserted into the spaces on the outer side of said lower fame. Therefore, once the upper frame is completely assembled, said eyeglass temples can be outwardly bent to allow said protrusions on the upper end thereof to extend outward from the horizontal hole of the upper frame to restrict said eyeglass temples directionally.