Spectacles Hinge Guide Groove Wear Reduction
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Solution Overview
Problem
Existing spectacles hinges suffer from wear of the surface treatment layer due to excessive rotation, leading to product damage, and have a large size that makes them cumbersome and difficult to wear comfortably.
Innovation Solution
A spectacles hinge design featuring a guide member with intersecting guide grooves and inclined surfaces, allowing smooth transition between open and closed positions without wear, and a reduced size for improved comfort and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spectacles temples are allowed to excessively open at a large angle and rotate outward, then the service life of the spectacles frame is extended by avoiding irreversible deformation, but the surface treatment layer on the guide body is worn due to friction
Solution Approach 1:
The patent extracts the harmful frictional contact between the guide body's outer surface and the connector by introducing a guide groove structure. The connector moves along the guide groove instead of rubbing against the outer surface, thereby separating the useful rotation function from the harmful wear effect.
Solution Approach 2:
The guide groove acts as an intermediary structure that mediates the movement between the connector and the guide body. It provides a controlled path for the connector to follow during excessive opening, replacing direct surface contact with groove-guided movement that eliminates frictional wear on the outer surface.
2Reliability
If the guide body is made larger to accommodate the rotation mechanism, then the elastic restoring function is improved, but the size of the hinge becomes large making it cumbersome and difficult to wear comfortably
Solution Approach 1:
The patent utilizes the third dimension by creating a guide groove that extends into the guide body rather than relying solely on surface-level structures. This allows the rotation mechanism to be compact while maintaining the elastic restoring function through the three-dimensional guide groove geometry.
Solution Approach 2:
The connector is nested within the guide groove structure, allowing the rotation mechanism to be compact and integrated within the guide body. This nesting approach enables the elastic restoring function to be achieved within a smaller overall hinge volume.
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 hinge design prevents wear on the surface treatment layer and reduces the size of the hinge, enhancing the longevity and wearability of the spectacles by enabling smooth rotation and elastic return without jamming, while maintaining structural strength.
Implementation Method 1
the two connectors are respectively equipped with springs and end elements... the spectacles temples can realize multi-directional rotation... and can restore the spectacles temples to the open position or closed position under the elastic force
Data Source
AI summary
The present application provides a pair of spectacles, an assembly of a spectacles temple and an endpiece, and a spectacles hinge. The guide member (30) is provided with a first guide groove (31) and a second guide groove (32) that are vertically intersected, the first connecting portion (11) and the second connecting portion (21) are respectively extended into the first guide groove (31) and the second guide groove (32) and hinged in the guide member (30), so as to realize that the spectacles hinge (100) can rotate in two mutually perpendicular directions; the bottom surface of the first guide groove (31) on the guide member (30) is provided with a first inclined surface (351), such that the first connecting member (10) can be rotated between the open position and the closed position without jamming.