Hingeless Eyewear Groove-and-Recess Locking Against Temple Disengagement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hingeless eyewear designs are prone to unintentional disengagement of temples due to external forces, particularly in the up or down direction, and often have conspicuous locking structures that limit design options.
Innovation Solution
The eyewear features a protrusion portion on one temple that fits into a recess portion of the other temple, with the groove and recess configurations allowing temples to be locked without a hinge, preventing unintentional disengagement and maintaining a simple, natural appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple groove portion is used for locking temples, then the structure is simple, but the temple folded state can be easily released when external force is applied upward
Solution Approach 1:
The locking structure is segmented into two functional parts: a groove portion for basic alignment and a recess portion for secure locking. The groove portion receives the protrusion portion for initial engagement, while the recess portion provides additional confinement to prevent upward disengagement, thus dividing the locking function into complementary segments that work together.
Solution Approach 2:
The recess portion is nested within the temple structure, creating a cavity that receives and secures the protrusion portion. This nested configuration allows the protrusion portion to be inserted into the groove portion and then locked within the recess portion, providing a reliable folded state without adding external components.
2Shape
If a decoration or ring joint structure is provided in the front region portion, then a characteristic design is presented, but it imposes a design constraint for consumers who prefer simple hingeless eyewear
Solution Approach 1:
The locking structure is designed with local quality differentiation: the groove portion and recess portion are strategically positioned and shaped to provide functional locking, while the surrounding temple surfaces maintain smooth, simple contours. This allows the locking mechanism to be functionally sophisticated locally while keeping the overall appearance simple and adaptable to different design preferences.
Data Source
AI summary
Provided is a hingeless eyewear in which, in a case where a pair of temples is locked to each other and folded, it is possible to prevent one temple from being unintentionally disengaged from the other temple.An eyewear 1 includes a front 10 and a pair of temples 11 connected to the front 10 in a hingeless manner. A front region 50 of each of the temples 11 has a protrusion portion 60 that protrudes in an inner direction of the temple 11. A rear region 51 has a groove portion 80 that penetrates the temple 11 in an in-out direction and a recess portion 81 that is disposed on an outer side surface of the temple 11 and communicates with the groove portion 80. The pair of temples 11 is configured such that the groove portion 80 of one temple 11 is fitted into a portion of the front region 50 of the other temple 11 that is closer to a front 10 side than the protrusion portion 60 and is further slid along the front region 50 to a protrusion portion 60 side, so that the protrusion portion 60 of the other temple 11 is accommodated in the recess portion 81 of the one temple 11.