Eyeglass Frame Decorative Piece Retention via Hidden Slotted Hole
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Solution Overview
Problem
Conventional spectacle frames with decorative elements often leave unsightly remnants or misalignment issues after the decorative pieces are removed, compromising aesthetics.
Innovation Solution
A spectacle frame design featuring oblong holes on the branches that are only visible when the frame is closed, allowing for temporary attachment of decorative pieces without visible fasteners, using an elastically deformable pin that locks inside the hole for secure retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a decorative piece is mounted on the temple using conventional methods (magnetic strip, groove, hole, or retaining element), then the decorative piece can be securely attached, but the temple becomes unsightly after the decorative piece is removed due to visible remnants or misalignment
Solution Approach 1:
The patent removes the visible attachment mechanism from the temple surface by placing the retention means inside a blind cavity. The decorative piece attaches securely through this hidden cavity, and when removed, no remnants or structural changes are visible on the temple's external surface, thus maintaining aesthetics while ensuring reliable retention.
2Adaptability or versatility
If the temple structure is modified to accommodate decorative pieces (adding grooves, holes, or retaining elements), then decorative pieces can be fixed, but the temple structure becomes more complex and visually compromised
Solution Approach 1:
The patent embeds the retention mechanism within a blind cavity inside the temple structure. The decorative piece fits into this nested cavity with its attachment surface, creating a compact integrated solution that provides adaptability for decorative pieces while minimizing structural complexity and visual impact on the temple.
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 maintains the frame's aesthetics by hiding the attachment mechanism when the decorative piece is not in use, providing a discreet and secure way to change the frame's appearance without compromising its appearance.
Implementation Method 1
using an elastically deformable pin that locks inside the hole for secure retention
Data Source
Figure 1a~2b
Figure 3a~3e
Figure 4a~5
AI summary
Frame (2) for eyeglasses having an optical face (3) and two side arms (4) joined with hinges onto the two end portions (30) of said optical face, each. side arm (4) having an inner longitudinal surface (42) and an outer longitudinal surface (43), and a front end surface (44) extending transversely to the longitudinal surfaces over a front end of said side arm, said front end surface extending to face a rear end surface (31 ) of the relevant end portion of the optical face when the side arm is in the open position, said frame further including at least one means for receiving a decorative piece (6), wherein the or each receiving means consists of a slotted hole (45) formed in one side arm and opening only into its front end surface or of a slotted hole formed in an end portion of the optical face and opening only into its rear end surface, the said or each slotted hole being designed to form a slide channel for receiving the decorative piece.