Oblique Watch Fastener Column for Secure Band Attachment
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Solution Overview
Problem
Conventional watch fasteners for rubber or leather watch bands often fail to provide a secure and adjustable fastening mechanism, leading to potential slippage or detachment of the band from the wrist.
Innovation Solution
A watch fastener design featuring a top and base portion with a connection component that includes a column and head portion, allowing for adjustable angle and deformation to securely pass through buckle holes, ensuring firm attachment and easy removal of the band ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional buckle and pin fastener is used for rubber or leather watch bands, then the structure is simple and easy to manufacture, but the fastening security is insufficient leading to potential slippage or detachment
Solution Approach 1:
The fastener incorporates a dynamic pin mechanism that can rotate and adjust its angle relative to the buckle body. This allows the pin to adapt to different band thicknesses and wrist sizes, maintaining secure fastening while preventing slippage. The connection component between the pin and buckle body enables controlled movement while maintaining structural integrity.
Solution Approach 2:
The fastener is divided into distinct functional segments: the buckle body, the connection component, and the pin. This segmentation allows each part to perform its specific function optimally while enabling independent adjustment of the pin angle and position, thereby improving fastening reliability without requiring complete redesign of the entire fastener.
2Adaptability or versatility
If a conventional buckle with predefined holes is used, then the manufacturing process is simple, but the adjustability and secure attachment are insufficient
Solution Approach 1:
The pin is designed with rotational capability, allowing it to adjust its angle dynamically. This enables the fastener to accommodate various band configurations and provide secure attachment without requiring multiple predefined holes or complex adjustment mechanisms, thus maintaining ease of manufacture while improving adaptability.
3Strength
If the pin is made rigid for strong fastening, then the attachment strength is high, but the ease of removal and adjustment is reduced
Solution Approach 1:
The pin incorporates controlled flexibility through its connection component, allowing it to deform elastically during insertion and removal operations. This enables easy adjustment and removal while maintaining strong attachment strength when fastened, as the pin can flex to accommodate insertion forces but resists deformation under normal fastening loads.
Solution Approach 2:
The pin material or structure is designed to exhibit different mechanical properties under different loading conditions. It maintains high strength and rigidity during fastening to ensure secure attachment, but allows controlled elastic deformation during removal operations, facilitating easy operation without compromising attachment strength.
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 design enhances the secure fastening of watch bands by applying forces in multiple axes, preventing slippage and detachment, while allowing for easy adjustment and removal through elastic deformation of the fastener components.
Implementation Method 1
the head portion 32 is deformed to pass through the second buckle hole 121
Implementation Method 2
the intersection of the central axis 50 of the first column 31 with the central axis 40 of the base portion 23 is oblique... the first column 31 can generate a first force F1 on the band body 10... the first force F1 can prevent the band body 10 from detaching or slipping off
Data Source
AI summary
A watch fastener for fastening a watch strap or band includes a base portion, a first column, and a head portion. The base portion and the head portion lie at opposite ends of the first column and the intersection of a central axis of the first column with a central axis of the base portion is oblique. The first column perpendicularly intersects the head portion.