Adults have different face shapes. The curvature design of adult swimming goggles frames needs to fully consider the differences in facial contours to achieve the unity of fit, sealing and comfort. The design of the curvature of the frame is not a simple shape shaping, but a fusion of multidisciplinary knowledge such as ergonomics and fluid mechanics to meet the actual needs of different users when swimming.
First of all, the basic classification of face shape is an important basis for the design of the curvature of the frame. Common square faces, round faces, melon-seed faces, etc. have different contour features in the cheekbones, nose bridge, eye sockets and other parts. For faces with prominent cheekbones, the curvature of the frame needs to be appropriately relaxed on both sides to avoid discomfort caused by compressing the cheekbones; for faces with low nose bridges, the middle part of the frame should be designed to be flatter to ensure that the sealing ring can fit tightly on both sides of the nose bridge to prevent water leakage. Designers need to collect and analyze a large amount of key data of different face shapes, build a facial contour database, and design targeted curvature of the frame based on this.
The curvature design of the frame must take into account both sealing and comfort. One of the main functions of adult swimming goggles is to prevent pool water from entering the eyes, which requires a good seal between the frame and the face. However, excessive pursuit of sealing and neglect of comfort will cause the frame to exert too much pressure on the face, resulting in indentations and even pain after long-term wearing. To resolve this contradiction, designers will adjust the curvature of the frame arc through multiple tests so that the seal ring can fit the face tightly when under force without causing excessive local pressure. For example, a gradual arc design is used around the eye sockets so that the seal ring can be evenly stressed when in contact with the skin, ensuring sealing while improving wearing comfort.
Fluid mechanics is also a factor that cannot be ignored in the design of the frame arc. When swimming, the impact of the water flow on the frame will affect the stability of wearing. An unreasonable arc design may cause the water flow to form turbulence around the frame, increase resistance, and even cause the frame to shift. Therefore, designers will use computer simulation technology to analyze the force of frames with different arcs in the water flow and optimize the shape of the frame. For example, the edge of the frame is designed to be streamlined to guide the water flow through smoothly and reduce resistance; at the same time, the curvature of the frame is adjusted according to the direction of the water flow impact, so that the frame can still fit the face when it is under force, ensuring stability during swimming.
Material properties are also interrelated with the curvature design of the frame. The elasticity and hardness of materials such as silicone and TPU used in the frame will affect the effect of the curvature. Soft and elastic materials can better adapt to the subtle differences in different face shapes. Even if there is a small deviation in the curvature design, it can be fitted through the deformation of the material. However, materials that are too soft may reduce the support of the frame and affect the sealing effect. Therefore, when determining the curvature of the frame, designers need to consider the characteristics of the material comprehensively. For example, for materials with weaker elasticity, the curvature design should be more precise to ensure that it can fit closely to different face shapes; while for materials with better elasticity, a certain degree of flexibility can be retained in the curvature design to adapt to more diverse face shapes.
Adjustable design provides a supplement for the curvature of the frame to adapt to different face shapes. Some adult swimming goggles use split frames or replaceable nose bridge components. Users can choose suitable accessories according to their own face characteristics and adjust the overall curvature of the frame. This design not only increases the versatility of the product, but also allows users to make personalized adjustments based on their actual wearing experience. For example, by replacing nose bridges of different lengths and changing the spacing on both sides of the frame, it can better adapt to faces of different widths; or adopt a foldable frame design to reduce the volume when not in use, and automatically adjust the curvature according to the face shape when worn to improve adaptability.
User feedback plays an important role in the optimization of frame curvature design. Manufacturers will collect wearing experience through market research, user trials, etc., and make improvements based on the problems encountered by users with different face shapes. For example, some users reported that the frame is prone to oppression at the corners of the eyes, so the designer will fine-tune the curvature of this part to make it more rounded and smooth; if the user reports that the seal at the bridge of the nose is not good, the curvature and height of the middle part of the frame will be redesigned. By continuously collecting and analyzing user feedback, the curvature design of the frame is continuously optimized to meet the needs of more users.
The curvature design of the frame of adult swimming goggles that are suitable for different face shapes needs to comprehensively consider factors such as face shape features, sealing, comfort, fluid mechanics, material properties, adjustability, and user feedback. Only by organically combining these factors, through scientific design and continuous optimization, can we create adult swimming goggles that can not only fit different face shapes tightly, but also provide a comfortable wearing experience and good sealing effect, and meet the diverse needs of adult users during swimming.
