Adjustable Wire Arms for Eyeglass Nose Pad Fit and Ventilation
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Solution Overview
Problem
Existing spectacle frame nose pad configurations, particularly those with through-the-lens loupes, often result in inadequate distance between the oculars and the wearer's eyes, leading to interference with eyelashes, reduced peripheral vision, and fogging due to limited ventilation, and lack versatility in accommodating different nose pad styles.
Innovation Solution
A removable and adjustable wire arm assembly for spectacle frame nose pads, featuring a plate with bendable wire members that can be manually adjusted to accommodate various nose pad configurations, allowing for customizable fit and integration with spacer components for additional adjustment range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the distance between oculars and wearer's eyes is reduced to improve declination angle, then posture improvement is enhanced, but interference with eyelashes and reduction in peripheral vision occur
Solution Approach 1:
The nose pad assembly incorporates adjustable wire arms that can be manually bent and positioned to dynamically adapt to different facial geometries. This allows the distance between the oculars and wearer's eyes to be optimized for declination angle while simultaneously adjusting the lateral position to avoid eyelash interference and maintain peripheral vision.
Solution Approach 2:
The wire arms can be manually adjusted to change multiple parameters simultaneously - the vertical distance for declination angle and the lateral horizontal distance to clear eyelashes. This multi-parameter adjustment resolves the contradiction by allowing independent optimization of each parameter.
2Ease of manufacture
If fixed nose pad configurations are used, then manufacturing is simplified, but versatility in accommodating different nose pad styles is reduced
Solution Approach 1:
The nose pad assembly is divided into separate modular components: a mounting plate, adjustable wire arms, and interchangeable nose pad tips. This segmentation allows the wire arms to be manufactured once as a universal component that can accommodate multiple nose pad styles through the interchangeable tips, resolving the contradiction between manufacturing simplicity and versatility.
Solution Approach 2:
The wire arms are designed as a universal component that can interface with multiple different nose pad configurations and styles. The mounting plate and wire arm assembly serves multiple functions - providing structural support, enabling adjustment, and accommodating various nose pad types - thereby achieving versatility without requiring multiple specialized components.
3Device complexity
If minimal spacing between nose pads and bridge portion is used, then device complexity is reduced, but comfort and ventilation are compromised
Solution Approach 1:
The wire arms provide dynamic adjustability that allows the nose pad assembly to be positioned at optimal distances for comfort and ventilation while maintaining a relatively simple overall structure. The manual bendability of the wire arms enables users to customize the spacing according to their facial features without requiring complex mechanical mechanisms.
Data Source
AI summary
An assembly with removable and replaceable wire arms is used to attach different nose pad configurations to eyeglass frames for enhanced versatility. A plate with front and back surfaces and opposing side edges mounts on the bridge portion of the eyeglass frames. Opposing right and left wire members extending downwardly from the side edges of the plate terminate in a coupling mechanism adapted to receive a nose pad. The wire members are manually bendable, enabling a user to independently adjust the distance between the nose pads and the distance of the nose pads from the eyeglass frames. The coupling mechanisms may include holes to receive nose pads with posts, and screws to hold the posts in position, or barbed fins to receive nose pads with slots that engage with the barbed fins. The coupling mechanisms may receive physically separate nose pads or nose pads interconnected through an upper nose rest.