Eyewear Frame Packaging Device with EPDM Support
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Solution Overview
Problem
Eyewear frames often suffer from 'registration loss' due to asymmetrical temple deformation during packaging and transport, leading to poor fit and perceived defects, as existing solutions either fail to prevent compression-induced warping or are aesthetically and structurally inadequate for high-end products.
Innovation Solution
A deformable packaging device with a parallelepiped-shaped body featuring a front abutment wall, rear wall, transverse notch, and through hole, made of EPDM rubber, which distributes load uniformly and prevents excessive stress on the frame, ensuring symmetrical folding and reducing deformation risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the temples are folded completely for packaging, then the frame can be packaged and transported, but registration loss and temple unbalancing occur due to asymmetric stresses
Solution Approach 1:
A folding support device is introduced as an intermediary element between the temples and the packaging container. This device has a first support surface that contacts the first temple and a second support surface that contacts the second temple, mediating the folding process to maintain symmetry and prevent registration loss while enabling complete folding for compact packaging
Solution Approach 2:
The folding support device changes the physical parameters of the folding process by providing controlled support surfaces at specific positions. The device transforms the uncontrolled asymmetric folding into a controlled symmetric process, maintaining temple alignment and preventing deformation during the packaging operation
2Strength
If a rigid or soft case is used for packaging, then the frame is protected during transport, but asymmetric stresses are induced causing warping and plastic deformations
Solution Approach 1:
The folding support device acts as a mediator between the frame and the packaging container, distributing loads symmetrically through its support surfaces. This prevents the asymmetric stresses that would otherwise be transmitted directly from the container to the temples, avoiding warping and plastic deformations while still providing protection during transport
Solution Approach 2:
The folding support device incorporates flexible elements including a first elastic element associated with the first temple and a second elastic element associated with the second temple. These flexible components adapt to the frame geometry and maintain symmetric support, preventing stress concentration and deformation while allowing movement during packaging operations
3Ease of operation
If the first folded temple is interposed between the front structure and the second folded temple, then the frame can be folded, but the second temple cannot assume the same position as the first temple resulting in asymmetrical configuration
Solution Approach 1:
The folding support device provides separate support surfaces for each temple, acting as an intermediary that prevents the first temple from interfering with the positioning of the second temple. The first support surface contacts the first temple while the second support surface contacts the second temple, ensuring both temples can be folded symmetrically without the interposition problem
Solution Approach 2:
The folding support device is segmented into distinct first and second support surfaces, each dedicated to supporting one temple. This segmentation allows independent control and positioning of each temple during folding, preventing the asymmetrical configuration that occurs when temples are folded without separate support structures
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 packaging device effectively prevents irreversible deformation of eyewear frames during storage and transport, maintaining their symmetry and quality, thus enhancing user comfort and reducing rejection rates.
Implementation Method 1
a deformable packaging device with a parallelepiped-shaped body featuring a front abutment wall, rear wall, transverse notch, and through hole, made of EPDM rubber, which distributes load uniformly and prevents excessive stress on the frame
Data Source
AI summary
A packaging device for eyewear frames has a structure for supporting lenses. The device has a first and a second lateral temple, including a body, having a front abutment wall, configured to abut against an inner side of the structure of the frame. A rear wall is opposite the front abutment wall relative to a longitudinal direction, to abut the second lateral temple in a folded configuration towards the frame. A transverse notch extends along a transverse direction, perpendicular to the longitudinal direction, and passing through the body. The transverse notch partially extends between a pair of lateral walls of the body, from an open insertion end, which emerges onto a pair of the lateral walls, at a closed bottom end. The body includes a hole passing through the body, between the transverse notch and the front abutment wall, positioned to substantially align with the closed bottom end.