Wearable Clasp Assembly with Hidden Hinge and Nested Latching
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Solution Overview
Problem
Conventional wearable device straps often have visible clasps that can snag on objects and lack a minimalistic design, making them aesthetically unpleasing and functionally inconvenient.
Innovation Solution
A clasp assembly for wearable devices that features a hinge connecting a flexible and rigid linking portion, with latching features along their lengths, allowing the clasp to close with a hidden mechanism and appear as a continuous band, while providing adjustability and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional clasp mechanism is used to attach bands, then the strap can be opened and closed for application and removal, but the clasp is visible and can snag on objects, compromising aesthetics and functionality
Solution Approach 1:
The clasp mechanism is nested within the band structure itself. The receiving portion is formed as an integral part of the band, with the clasp components hidden within the band's thickness. When closed, the clasp is completely concealed, giving the appearance of a continuous band while maintaining functionality.
Solution Approach 2:
A rigid insert serves as an intermediary component between the band layers and the clasp mechanism. The insert provides a structural interface that allows the clasp to function while remaining hidden, mediating between the aesthetic requirement for a continuous band appearance and the functional requirement for a working clasp mechanism.
2Ease of operation
If the clasp mechanism is made visible and accessible, then it is easier to operate for opening and closing, but it increases the risk of snagging on objects and disrupts the aesthetic appearance
Solution Approach 1:
The closing mechanism is nested within the band structure, with the release button positioned such that it can be accessed by the user but does not protrude enough to snag on objects. The entire clasp mechanism is concealed within the band, eliminating visible components that could catch on clothing or other objects.
3Shape
If the band is made entirely from flexible material, then it is comfortable and aesthetically pleasing, but it lacks the structural integrity needed for secure attachment
Solution Approach 1:
The band is constructed as a composite structure with multiple layers including flexible outer layers for comfort and aesthetics, and a rigid insert providing structural integrity. This composite construction allows the band to maintain its flexibility and comfort while having the strength needed for secure attachment through the clasp mechanism.
Solution Approach 2:
The rigid insert is positioned locally at the attachment point where the clasp mechanism is located, providing strength exactly where needed for secure attachment. The rest of the band remains entirely flexible, maintaining comfort and aesthetic appearance in areas where rigidity is not required.
Data Source
AI summary
An attachment strap for a wearable electronic device is disclosed. The attachment strap attaches the wearable electronic device to a wearer, and may attach to a wrist of a wearer. The attachment strap includes two bands which attach to a clasp. The clasp operates in an open and closed configuration. When in the closed configuration, the clasp may not present a visible indication of its mechanism.