Curved Head Strap Buckle for Swimming Goggles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional head strap devices for swimming goggles cause discomfort due to uneven tension distribution, leading to sliding and water leakage, and require removal of goggles for adjustments, making the adjustment process inconvenient.
Innovation Solution
A head strap device with a curved central section and plate-shaped connecting sections, featuring an extended convex surface and drainage patterns, which balances tension and prevents sliding, combined with an adjustable buckle that allows length adjustment without removing the goggles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the head strap uses a flat central section design, then the structure is simple, but the strap slides on the curved back of the head causing water leakage
Solution Approach 1:
The patent applies curvature by designing the central section of the head strap with an arc shape that matches the curvature of the back of the head. This arc-shaped central section allows the strap to conform to the head's surface, preventing sliding and maintaining sealing performance without requiring complex additional components.
2Device complexity
If the upper and lower split sections are directly connected, then the structure is simple, but the tension is unevenly distributed causing discomfort and sliding
Solution Approach 1:
The patent introduces an arc-shaped connecting section between the upper and lower split sections, which distributes the tension forces more evenly across the head strap. This curved configuration allows the forces to be transmitted more uniformly, reducing localized stress and preventing the strap from sliding, thereby improving wearing comfort.
3Device complexity
If the adjustment buckle requires unbuckling to adjust length, then the buckling mechanism is simple, but the adjustment process requires removing the goggles
Solution Approach 1:
The patent implements a dynamic adjustment mechanism where the buckle can be easily unbuckled and rebuckled without removing the goggles from the head. This allows users to adjust the head strap length in place, improving convenience while maintaining a relatively simple buckling mechanism structure.
4Reliability
If the head strap is tightened firmly, then the sealing performance is improved, but the strap may cause discomfort due to uneven tension
Solution Approach 1:
The patent uses the arc-shaped central section and arc-shaped connecting sections to distribute the tightening forces evenly across the head strap. This allows the strap to be tightened firmly for good sealing performance while preventing localized excessive tension that would cause discomfort, as the curved geometry naturally distributes the load.
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 head strap device provides comfortable, secure fitting without sliding or water leakage and allows for convenient adjustment of the strap length while worn, enhancing user experience during water activities.
Implementation Method 1
The curved central section of the head strap fits the back of the head, providing friction to prevent sliding while maintaining balanced tension distribution
Implementation Method 2
The drainage patterns formed on the second surface of the upper arc surface have openings adjacent to edges of the second surface of the upper arc surface, utilizing gravity to channel water away and prevent water leakage
Data Source
AI summary
The present invention is to provide a head strap device which includes a head strap having a first set of connecting section, a second set of connecting section, and a central section, and an adjustment buckle for positioning and adjusting the head strap, characterized in that: the central section of the head strap is a curved surface that can be naturally approach engagement on a back of the head while worn to avoid the head strap sliding, in addition, an opening disposed within a body of the adjustment buckle, and a pins and a guide posts disposed with misaligned each other on the opening that can separate the overlapping head strap after assembled, so that there is no need to remove the swimming goggles when the head strap is worn and adjusted, to achieve the effect of easily use.