Swim Goggle Strap Hook Mechanism for One-Way Adjustment
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Solution Overview
Problem
Conventional swim goggles require awkward and time-consuming adjustments due to the need for manual handling of press boards to fit the head strap comfortably, and existing solutions either complicate the buckle mechanism or increase component complexity.
Innovation Solution
A pair of swim goggles featuring a strap apparatus with a coupling element, propping plate, releasing plate, and head strap with retaining slots, allowing one-way adjustment and easy disengagement for convenient fitting, utilizing a hook mechanism for secure engagement and disengagement of the head strap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling of press boards is used for adjustment, then the head strap can be fitted, but the adjustment process becomes awkward and time-consuming
Solution Approach 1:
The press board is designed to automatically return to its initial position after being pushed, eliminating the need for manual retrieval. The elastic component provides self-service by automatically resetting the mechanism, allowing users to simply push the press board forward for adjustment without additional handling steps.
Solution Approach 2:
The press board transitions from a static component to a dynamic one that can be pushed forward for adjustment and then automatically returns to its initial position. This dynamic behavior enables one-way adjustment while maintaining the ability to reset without manual intervention.
2Productivity
If automatic return of press board is implemented, then adjusting efficiency improves, but the buckle structure becomes too complex to assemble
Solution Approach 1:
The elastic component is integrated directly into the buckle structure, merging the return mechanism with the existing buckle components. This integration avoids adding separate complex mechanisms while achieving automatic return functionality, thus improving adjusting efficiency without significantly increasing overall structure complexity.
Solution Approach 2:
The elastic component changes the physical state of the press board system by providing automatic restoring force. This parameter change enables the press board to return to its initial position automatically, improving adjusting efficiency while keeping the structural addition minimal through the use of a simple elastic element.
3Ease of manufacture
If simple buckle structure is used, then assembly complexity is reduced, but the adjustment functionality becomes insufficient
Solution Approach 1:
The adjustment mechanism is segmented into distinct functional components: the press board for user interaction, the elastic component for automatic return, and the retaining slots for positioning. This segmentation allows each component to be simple in itself while collectively providing comprehensive adjustment functionality and ease of assembly.
Data Source
AI summary
A pair of swim goggles include left and right frames respectively encircling lenses, position elements, and a pair of strap apparatuses assembled with the left and right frames, respectively. Each of the strap apparatuses includes a coupling element, a propping plate, a releasing plate, and a head strap having multiple retaining slots. The coupling element has a base defining an opening therein for receiving the head strap. The propping plate is mounted to the base with one end thereof, and the other end of the propping plate forms a propping wall in the opening and is spaced away from the base. The releasing plate is provided with a pair of guiding walls on opposite sides thereof with respect to two opposite sides of the opening. Each of the guiding walls has a hook portion. An engaging portion is disposed between the guiding walls with respect to the propping wall.