Reversible Spectacle Frames with Rotating Hinges
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Solution Overview
Problem
Conventional eyeglass frames lack versatility and additional functionality beyond holding corrective, filtering, or polarizing lenses, as they do not offer the ability to easily switch between different designs or patterns.
Innovation Solution
A reversible frame design for spectacles featuring a front portion with rotatable temple arms and connecting members, allowing users to switch between two different patterns by rotating the arms through a range of 190-204 degrees, with hinges that enable compact folding and a pantoscopic tilt, enabling easy switching between two distinct patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional eyeglass frames are designed with fixed structure, then manufacturing is simple and reliable, but versatility and functionality are limited
Solution Approach 1:
The patent applies the dynamics principle by making the temple arms rotatable relative to the connecting members through hinges, allowing the frame to transition between different configurations. The first temple arm rotates about a first pivot axis and the second temple arm rotates about a second pivot axis, enabling the frame to adapt between wearing positions and display different patterns on the front portion.
Solution Approach 2:
The patent implements universality by designing a single frame that can perform multiple functions: it can display different patterns (first pattern and second pattern) on the front portion, accommodate different lens configurations, and provide various wearing positions through the rotatable temple arms. This multi-functional design eliminates the need for multiple separate frames.
2Adaptability or versatility
If temple arms are made rotatable to enable pattern switching, then versatility improves, but device complexity increases
Solution Approach 1:
The patent uses dynamic hinge mechanisms that allow the temple arms to rotate relative to the connecting members. The first temple arm is coupled to the first connecting member by a first hinge that allows rotation about a first pivot axis, and the second temple arm is coupled to the second connecting member by a second hinge that allows rotation about a second pivot axis. This dynamic design enables easy switching between patterns.
Solution Approach 2:
The patent segments the frame into distinct rotatable components: the first temple arm, second temple arm, first connecting member, and second connecting member, each with its own hinge mechanism. This segmentation allows independent rotation of each arm, providing control over the frame's configuration and enabling reliable pattern switching.
3Ease of operation
If connecting members are made rotatable about third pivot axis, then pantoscopic tilt and folding capability improve, but manufacturing precision requirements increase
Solution Approach 1:
The patent makes the connecting members rotatable about a third pivot axis that is substantially perpendicular to the first and second pivot axes. This allows the temple arms to fold against the front portion for compact storage and provides pantoscopic tilt adjustment. The third hinge mechanism enables the connecting members to rotate between extended and folded positions.
Solution Approach 2:
The patent applies different rotational capabilities to different parts of the frame: the temple arms rotate about first and second pivot axes for pattern switching, while the connecting members rotate about a third pivot axis for folding and tilt adjustment. This localized rotational quality allows each component to perform its specific function optimally.
Data Source
AI summary
A frame comprises a front portion, connecting members, a first arm coupled to a first connecting member by a hinge, and a second arm coupled to a second connecting member by a hinge. The first and second connecting members are coupled to the front portion by hinges. The first arm is rotatable, relative to the first connecting member, about a first pivot axis, and the second arm is rotatable, relative to the second connecting member, about a second pivot axis. The first pivot axis and second pivot axis are parallel to each other and positioned at an angle relative to lengths of the first and second arms, respectively. The first and second connecting members are rotatable, relative to the front portion, about a third pivot axis, which is positioned at an angle relative to the first pivot axis and the second pivot axis.