Eyeglass Hinge Assembly for Quick Temple Replacement
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Solution Overview
Problem
Existing eyeglass hinge mechanisms require significant effort and time for temple replacement, often creating unsightly lines and potential for hair entanglement or contamination, especially when electrical components are involved.
Innovation Solution
A hinge assembly with a pivotally connected hinge part and an insertion part that allows temples to be easily plugged and secured with magnetic or frictional connecting elements, ensuring a stable connection without additional visible edges and protecting electrical interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw-based hinge axis is used for temple replacement, then the connection stability is improved, but the replacement time and effort increase significantly
Solution Approach 1:
The hinge assembly is divided into separate modular components: a hinge part integrated with the central section, and an insertion part that can be detached and replaced. This segmentation allows the temple to be quickly swapped by removing the insertion part without affecting the permanent hinge part, achieving both stable connection and rapid replacement.
Solution Approach 2:
The insertion part is designed to nest within the temple structure, containing the electrical interface and connecting elements. This nested configuration allows the insertion part to be easily inserted into and removed from the temple, enabling quick replacement while maintaining a compact integrated appearance when assembled.
2Ease of operation
If a plug-in system is used for temple replacement, then the replacement effort is reduced, but an additional visible line is created at the interface
Solution Approach 1:
The insertion part is designed to merge visually with the temple and central section when assembled. The interface between components is positioned and configured so that no additional visible lines are created beyond the necessary hinge division, maintaining a clean, continuous appearance from the front view.
Solution Approach 2:
The interface and connecting elements are positioned in locations that are not visible from the front when the glasses are worn. The end face of the temple forming the sight line is configured so that the interface occurs at the hinge axis location, which is already a necessary visual division, rather than creating additional visible seams.
3Ease of operation
If the interface is positioned for easy temple replacement, then the ease of operation is improved, but the potential for hair entanglement and contamination increases
Solution Approach 1:
The electrical interface and connecting elements are nested within the insertion part, which is then inserted into the temple. This nested configuration protects the electrical interface from external contamination and prevents hair from reaching the interface area, while still allowing easy temple replacement by removing the outer temple shell.
Solution Approach 2:
The insertion part serves as an intermediary element between the temple and the hinge part. It provides a protected interface zone that prevents direct contact between external elements (hair, skin) and the electrical connection points, while still enabling easy temple replacement through the outer temple removal.
4Reliability
If the insertion part engages deeply for stable connection, then the connection stability is improved, but the device complexity increases
Solution Approach 1:
The hinge assembly is segmented into a permanent hinge part and a replaceable insertion part. This segmentation allows the insertion part to engage deeply for stable connection without complicating the overall structure, as each component can be optimized independently for its specific function.
Solution Approach 2:
The insertion part is designed as a universal component that integrates multiple functions: mechanical connection, electrical interface, and temple attachment. This multi-functionality reduces overall device complexity by consolidating these functions into a single replaceable unit rather than requiring separate mechanisms for each function.
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
Facilitates quick and secure temple replacement without precision work, maintaining aesthetic appeal and preventing hair entanglement or contamination, while securely housing electrical components.
Implementation Method 1
The first magnetic device and the second magnetic device are arranged and coordinated such that, at least in one functional position of the inserting part—particularly when fully inserted into the insertion recess, especially up to an end stop—and especially in the holding position of the spectacle arm, an attractive force acts between the first magnetic device and the second magnetic device.
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
The invention relates to a hinge arrangement (3) for a pair of glasses (1), comprising: ˗ a hinge part (9) which has at least a first hinge portion (13) designed to hingedly connect the hinge part (9) to a central part (11) of a pair of glasses (1); ˗ an insertion part (7) connectable to the hinge part (9); and ˗ a temple arm (5) which has an insertion recess (15) at the end, wherein: ˗ the insertion recess (15) and the insertion part (7) are designed and matched to one another such that the insertion part (7) can be inserted into the insertion recess (15) in order to connect the temple arm (5) to the hinge part (9); ˗ the insertion part (7) has a first connection element (17) and the temple arm (5) has, in the region of the insertion recess (15), a second connection element (19), the first connection element (17) and the second connection element (19) being designed and matched to one another so as to detachably fasten the temple arm (5) to the insertion part (7) when the insertion part (7) is inserted into the insertion recess (15); and ˗ the temple arm (5) has, on an outer wall (21) delimiting the insertion recess (15), an end-face boundary surface (23) designed to form, together with a mating boundary surface (25) of the central part (11), a visible edge (27) when the temple arm (5) is connected, via the insertion part (7) and the hinge part (9), to the central part (11) of the pair of glasses (1) and arranged in a wearing position.