Adjustable Watch Band with Hook-and-Loop Fastener
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Solution Overview
Problem
Existing watch bands do not effectively accommodate varying wrist sizes and prioritize user comfort, as they lack adjustable length mechanisms that ensure a secure and comfortable fit.
Innovation Solution
A watch band design featuring a connector with opposing holes, a first band connected to one hole, and a second band connected to the other, utilizing VELCRO-type hook-and-loop fasteners to adjust length, with a base layer and fixing layer configuration that enhances comfort by varying widths and sewing for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-length watch band is used, then the structure is simple, but it cannot accommodate different wrist sizes
Solution Approach 1:
The watch band is divided into multiple sections: a first band with fixed length, a second band with adjustable length, and a connector. The second band is further segmented into a free end section and an extension section with hook-and-loop fasteners, allowing independent adjustment of band length to fit different wrist sizes while keeping the overall structure manageable.
Solution Approach 2:
The watch band transitions from a fixed-length design to a dynamic, adjustable-length design. The second band incorporates a free end section that can be extended or retracted by engaging or disengaging the hook-and-loop fastener between the free end section and extension section, enabling the band to adapt to different wrist circumferences.
2Adaptability or versatility
If an adjustable mechanism is added to the watch band, then different wrist sizes can be accommodated, but the structure becomes complex
Solution Approach 1:
The connector serves as an intermediary component that joins the first band and second band while providing attachment points for both bands. It includes first and second holes for connecting the bands and features a streamlined structure that avoids adding excessive complexity to the adjustable mechanism.
Solution Approach 2:
The hook-and-loop fastener system is designed to be self-adjusting and self-securing. The user can independently adjust the length by pulling the free end section to extend it or pressing to engage the fastener, without requiring tools or complex mechanisms. The fastener automatically maintains the adjusted length.
3Shape
If the free end section has the same width as the extension section, then manufacturing is simple, but the aesthetic appearance and comfort are reduced
Solution Approach 1:
The free end section is designed with a different width than the extension section, creating local variation in the band's geometry. The free end section has a smaller width to provide a more comfortable fit against the wrist and improved aesthetic appearance, while the extension section maintains the full width for structural integrity. This localized dimensional change is achieved through standard cutting and sewing processes.
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 adjustable watch band provides a customizable fit, ensuring both security and comfort by accommodating different wrist sizes through adjustable length and varying layer widths, enhancing user experience.
Implementation Method 1
The free end section of the first band is extendable through the first hole of the connector to be fastened to the extension section of the first band by hook-and-loop fasteners such as VELCRO-type hook-and-loop fasteners
Data Source
AI summary
A watch band includes a connector including a first hole and a second hole arranged at opposite ends thereof; a first band connected to the first hole, and a second band connected to the second hole. The first band includes a first connection member connected to an end of a wearable electronic device, a free end section and an extension section connected between the first connection member and the free end section. The second band includes a second connection member connected to another end of the wearable electronic device. The free end section is extendable through the first hole to be fastened to the extension section by VELCRO-type hook-and-loop fasteners. The free end section is provided with loops, the fixing layer is provided with hooks engageable with the loops. The length of the watch band is adjustable via adjusting engaging position of the free end section and the fixing layer.