Watchband Fixing Structure Using Adhesive Hook and Loop Surfaces
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Solution Overview
Problem
The existing two-watchband structure in medical wearable devices lacks a reliable fixing mechanism, leading to potential shifting of the inner and outer bands during use, affecting treatment or measurement efficacy and offering poor comfort and adjustability.
Innovation Solution
A fixing structure comprising a main unit with a rotatably connected outer band and an inner band featuring a groove with a hook surface that adheres to a loop surface on the outer band, allowing for secure overlap and easy mounting/removal, ensuring stability and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inner watchband and outer watchband are not relatively fixed, then the structure is simple and easy to manufacture, but the relative position shifts during use affecting treatment or measurement effect
Solution Approach 1:
The patent replaces complex mechanical fixing structures (buckles, holes, clamps) with a adhesive bonding system. The adhesive layer chemically bonds the inner and outer watchbands at overlapping regions, providing reliable position stability without mechanical fasteners. This substitution achieves both reliability and simplicity.
Solution Approach 2:
The patent extracts the fixing function from the mechanical buckle system and implements it through adhesive bonding at specific overlapping regions. By taking out the complex mechanical fixing mechanism and replacing it with a simpler adhesive system, the patent achieves reliable positioning without the complexity of buckles, holes, and adjustment mechanisms.
2Adaptability or versatility
If the inner watchband and outer watchband are fixed by clamping a buckle into a hole location, then the fixing is secure, but the structure is more complex and cannot be infinitely adjusted
Solution Approach 1:
The patent enables dynamic adjustability by allowing the outer watchband to be freely positioned along the inner watchband before adhesive bonding. The adhesive system permits infinite adjustment positions along the overlapping region, unlike fixed buckle-hole systems. After bonding, the position is locked, providing both adaptability during adjustment and stability during use.
Solution Approach 2:
The adhesive fixing system serves multiple functions: it provides secure bonding, allows infinite adjustment positions, simplifies the structure by eliminating buckles and holes, and maintains flexibility of the watchbands. This universal solution replaces multiple specialized components with a single multi-functional adhesive system.
3Ease of operation
If the inner watchband and outer watchband are fixed by clamping a buckle into a hole location, then the fixing is secure, but the wearing comfort is poor
Solution Approach 1:
The patent uses a thin adhesive film layer to bond the watchbands, maintaining the flexibility and softness of the original watchband materials. Unlike rigid buckles and holes that create discomfort points, the adhesive layer provides a smooth, flexible bonding interface that conforms to the wrist, improving wearing comfort while maintaining fixing security.
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
This solution prevents shifting of the inner band, enhances user comfort, and facilitates quick adjustments, thereby improving the reliability and effectiveness of medical wearable devices.
Implementation Method 1
a hook surface is arranged in the groove; a loop surface matched with the hook surface is arranged on an inner side of the outer band; and the hook surface is adhered to the loop surface
Data Source
AI summary
The present disclosure discloses a fixing structure of two watchbands, including a main unit, an inner band and an outer band, wherein the inner band is connected with a bottom of the main unit; the outer band is rotatably connected with one side of the main unit; a groove is arranged on an outer side of the inner band; a hook surface is arranged in the groove; a loop surface matched with the hook surface is arranged on an inner side of the outer band; and the hook surface is adhered to the loop surface. In the present disclosure, by the arrangement of the hook surface and the loop surface, the hook surface and the loop surface are adhered, so that the inner band and the outer band can overlap each other to be fixed, which avoids the inner band from shifting to affect the use effect.